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102 results on '"A. Brigante"'

1. Toward a better understanding of peroxymonosulfate and peroxydisulfate activation using a nano zero-valent iron catalyst supported on graphitized carbon: Mechanisms and application to the degradation of estrogenic compounds in different water matrix

Author: Cai, Minjuan, Cheng, Peng, Li, Jinjun, Wu, Feng, Sarakha, Mohamed, Mailhot, Gilles, Brigante, Marcello, Institut de Chimie de Clermont-Ferrand (ICCF), SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and Wuhan University [China]
Subjects: [SDE.IE]Environmental Sciences/Environmental Engineering, Advanced oxidation processes, [CHIM]Chemical Sciences, Ferryl ions, [CHIM.CATA]Chemical Sciences/Catalysis, Radical formation, Fenton-like activation, Endocrine Disrupting Compounds
Abstract: In this study, we employed nano zero-valent iron catalysts supported on graphitized carbon (GC-nZVI) catalyst to efficiently degrade BPA under circumneutral pH conditions in both dark and UVA radiation. The GC-nZVI catalyst was characterized using specific techniques (XPS, FTIR, BET, etc.), and was used to activate both PS and PMS in solution. Although no significant BPA degradation constant (k BPA) was determined using PS/PMS or GC-nZVI alone, a significant synergistic effect was observed in the system. Under dark conditions, k BPA increased from 0.01 min-1 to 0.17 when PS was used, both in the dark and under UVA. Notably, when PMS was present in the system, the improvement was even higher with k BPA reaching 0.18 and 0.26 min-1 under dark and UVA conditions, respectively. To further support the synergistic effect, it was found that 80 % of mineralization was achieved within 2 hours of UVA exposure. Chemical quenching experiments were conducted using selective probes and kinetic modelling showed that the activation of PS/PMS produced sulfate radicals (SO 4 •−), hydroxyl radicals (• OH) and ferryl ions (Fe IV O 2+) in both systems. Additionally, GC-nZVI/PMS system demonstrated good stability in recycling experiments, with up to 70 % of BPA still being degraded after 3 cycled in 1 hour under UVA. In conclusion, the degradation efficiencies of GC-nZVI/PMS and GC-nZVI/PS systems under dark and UVA radiation were assessed for three different EDCs (BPA, E2, and EE2) in both tap and sewage treatment plant waters. This study has demonstrated that the highly efficient GC-nZVI /PS/UVA or GC-nZVI/PMS/UVA system has significant potential for application in different water matrix, and our findings provide insights into the design of heterogeneous Fenton-like and photo-Fenton-like catalysts.
Published: 2023
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2. Reactivity and photodegradation mechanism of Metazachlor in aqueous phase: determination of the rate constants and identification of the main photoproducts

Author: Mailhot, M., Sarakha, M., Brigante, M., Louis, F., Mailhot, G., Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), and Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA)
Subjects: [CHIM]Chemical Sciences
Abstract: International audience
Published: 2022

3. Inactivation of harmful algal bloom by an environmentally friendly photocatalyst under photo-Fenton-like degradation process

Author: Arezou Fazli, Fatemeh Zakeri, Marcello Brigante, Alireza Khataee, Gilles Mailhot, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), University of Tabriz [Tabriz], College of Materials Science and Engineering [Nanjing Forestry University], Nanjing Forestry University (NFU), and Department of Materials Science and Nanotechnology Engineering, Faculty of Engineering, Near East University
Subjects: Antibacterial activity, [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, Renewable Energy, Sustainability and the Environment, Strategy and Management, Layered double hydroxide, Building and Construction, Doped magnetite, Scenedesmus quadricauda, Green algal removal, Industrial and Manufacturing Engineering, General Environmental Science
Abstract: International audience; In the present work, the photo-Fenton-like process based on the use of the Fe2.5Co0.3Zn0.2O4/CuCr-LDH composite was applied for the removal of green algal cells. First, the biological activity of the composite was proved with the antibacterial tests against the S. aureus; thereafter, it was used for the removal of Scenedesmus quadricauda algal cells under the photo-Fenton-like process. Interestingly, compared with the individual processes, the photo-Fenton-like process displayed a synergistic effect in the deactivation of green algal cells. The effect of various parameters such as the initial concentration of the algal cells, concentration of the hydrogen peroxide (HP), and the solution pH on the total algal. The maximuml was assessed. Maximum algal removal efficiency was obtained in the presence of the algal cell concentration of 3.5 × 109 cells mL−1, 0.1 g L−1 composite, and HP concentration of 10 mM. Furthermore, the microscopic and SEM images of the algal cells before and after the photo-Fenton-like process proved their appropriate destruction. The reduction of the chlorophyll content after 60 and 120 min of the process was observed revealing the destruction of the algal cell walls. Finally, the disintegration of the macromolecules in the algal cell walls was proved by the GC-MS technique.
Published: 2022
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4. A theoretical study of the OH-initiated atmospheric degradation of several polychlorophenols

Author: Al Rawas, Hisham, Alharzali, Nissrin, Taamalli, Sonia, El Bakali, Abderrahman, Louis, Florent, Cernusak, Ivan, Truong, Dinh Hieu, Nguyen, Thi Le Anh, Dao, Duy Quang, Brigante, Marcello, Mailhot, Gilles, Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 (PC2A), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Comenius University in Bratislava, Institute of Research and Development, Duytan University, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and Louis, florent
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences
Abstract: International audience
Published: 2022

5. Reactivity of 2,3,4,5-tetrachlorophenol with OH radicals in the atmosphere: A theoretical study

Author: Al Rawas, Hisham, Alharzali, Nissrin, Taamalli, Sonia, El Bakali, Abderrahman, Louis, Florent, Cernusak, Ivan, Truong, Dinh Hieu, Nguyen, Thi Le Anh, Dao, Duy Quang, Brigante, Marcello, Mailhot, Gilles, Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 (PC2A), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Comenius University in Bratislava, Institute of Research and Development, Duytan University, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and Louis, florent
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences
Abstract: International audience
Published: 2022

6. Studying the atmospheric reactivity of pesticides with molecular simulations

Author: Louis, Florent, Kdouh, Doha, Truong, Dinh Hieu, Al Mawla, Reem, Pham, Thi Yen Nhi, Ngo, Thi Chinh, Srour, Zainab, Kozakova, Silvia, Taamalli, Sonia, Fèvre-Nollet, Valerie, Ribaucour, Marc, El Bakali, Abderrahman, Cernusak, Ivan, Dao, Duy Quang, Brigante, Marcello, Mailhot, Gilles, Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 (PC2A), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Institute of Research and Development, Duytan University, Comenius University in Bratislava, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and Louis, florent
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences
Abstract: International audience
Published: 2022

7. Manganese based advanced oxidation processes: involvement of radical and non-radical pathways for the degradation of organic pollutants in water

Author: Brigante, M., Jia, D., Hanna, K., Mailhot, G., Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), and Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA)
Subjects: [CHIM]Chemical Sciences
Abstract: International audience
Published: 2022

8. Iron-based nano-photocatalysts: Coupling of photocatalysis and fenton-based processes for caffeine degradation in water

Author: Monfort, O., Gowrisankaran, S., Thirunavukkarasu, G., Roch, T., Satrapinskyy, L., Plesch, G., Motola, M., Brigante, M., Mailhot, G., Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), and Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA)
Subjects: [CHIM]Chemical Sciences
Abstract: International audience
Published: 2022

9. How effective and sustainable are iron oxides in Fenton process for elimination of organic pollutants in water treatment?

Author: Mailhot, G., Fazli, A., Hanna, K., Brigante, M., Wu, F., Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), and Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA)
Subjects: [CHIM]Chemical Sciences
Abstract: International audience
Published: 2022

10. Application of Fe(III)-EDDS complexes and soybean peroxidase in photo-Fenton processes for organic pollutants removal: insights into possible synergistic effects

Author: Silvia, Bertolotti, Marco, Minella, Enzo, Laurenti, Marcello, Brigante, Gilles, Mailhot, Alessandra, Bianco Prevot, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), and Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA)
Subjects: Fe(III)–EDDS, Contaminants of emerging concern, 4-Chlorophenol, Fenton and photo-Fenton processes, Soybean peroxidase, 4-Chlorophenol, [CHIM]Chemical Sciences, Fenton and photo-Fenton processes, Soybean peroxidase, Physical and Theoretical Chemistry, Fe(III)–EDDS, Contaminants of emerging concern
Abstract: Photo-Fenton processes activated by biodegradable Fe(III)–EDDS complexes have attracted huge attention from the scientific community, but the operative mechanism of the photo-activation of H2O2 in the presence of Fe(III)–EDDS has not been fully clarified yet. The application of the Fe(III)–EDDS complex in Fenton and photo-Fenton (mainly under UV-B light) processes, using 4-chlorophenol (4-CP) as a model pollutant was explored to give insights into the operative mechanism. Furthermore, the potential synergistic contribution of soybean peroxidase (SBP) was investigated, since it has been reported that upon irradiation of Fe(III)–EDDS the production of H2O2 can occur. SBP did not boost the 4-CP degradation, suggesting that the possibly produced H2O2 reacts immediately with the Fe(II) ion with a quick kinetics that does not allow the diffusion of H2O2 into the bulk of the solution (i.e., outside the solvent cage of the complex). So, a concerted mechanism in which the photochemically produced H2O2 and Fe(II) react inside the hydration sphere of the Fe(III)–EDDS complex is proposed. Graphical abstract
Published: 2022
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11. Synergic effect of graphite carbon and iron for the degradation of BPA in solution: kinetic, reactive species generation and efficiency in real waters

Author: Cai, M., Li, J., Wu, F., Mailhot, G., Brigante, M., Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), and Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA)
Subjects: [CHIM]Chemical Sciences
Published: 2022

12. OH-initiated atmospheric degradation of 2,3,4,5-chlorophenol insectide

Author: Al Rawas, Hisham, Alharzali, Nissrin, Taamalli, Sonia, El Bakali, Abderrahman, Louis, Florent, Černušák, Ivan, Truong, Dinh Hieu, Thanh, Nguyen Thi Le, Quang Dao, Duy, Brigante, Marcello, Mailhot, Gilles, Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 (PC2A), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Comenius University in Bratislava, Institute of Research and DevelopmentDuy Tan UniversityDa NangVietnam, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and Louis, florent
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2022

13. A theoretical study of the atmospheric fate of phosmet insecticide

Author: Al Mawla, Reem, Taamalli, Sonia, El Bakali, Abderrahman, Louis, Florent, Černušák, Ivan, Quang Dao, Duy, Truong, Dinh Hieu, Ngo, Thi Chinh, Pham, Thi Yen Nhi, Brigante, Marcello, Mailhot, Gilles, Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 (PC2A), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Comenius University in Bratislava, Institute of Research and DevelopmentDuy Tan UniversityDa NangVietnam, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and Louis, florent
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2022

14. Fe2.5Co0.3Zn0.2O4/CuCr-LDH as a visible-light-responsive photocatalyst for the degradation of caffeine, bisphenol A, and simazine in pure water and real wastewater under photo-Fenton-like degradation process

Author: Gilles Mailhot, Alireza Khataee, Marcello Brigante, Arezou Fazli, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), University of Tabriz [Tabriz], Gebze Technical University, South Ural State University (SUSU), and We acknowledge the French Embassy in Iran, the project I-Site CAP 20–25, the program PAUSE of coll`ege de France, and PAI (Pack Ambition Recherche internationale) SOLDE from the Region Auvergne Rhône-Alpes for the financial support of Arezou Fazli in this project. Moreover, we would like to thank the Scientific and Technical Research Council of Turkey (TUBITAK, Project Number: 120Y350) for the financial support of the research project.
Subjects: Bisphenol A, Environmental Engineering, Mineralization, Health, Toxicology and Mutagenesis, Composite number, Simazine, Doped magnetite, Chloride, Catalysis, chemistry.chemical_compound, medicine, Environmental Chemistry, [CHIM]Chemical Sciences, CuCr-LDH, Public Health, Environmental and Occupational Health, Sustainable photocatalyst, General Medicine, General Chemistry, Pollution, Micropollutants mixture, chemistry, Chemical engineering, Photocatalysis, Degradation (geology), Hydroxide, medicine.drug
Abstract: International audience; This paper outlines the synthesis and application of a sustainable composite for the photo-Fenton-like degradation of caffeine, bisphenol A, and simazine. The phase, morphology, optical and magnetic properties of the samples were evaluated by different characterization techniques. The composite of Fe2.5Co0.3Zn0.2O4 and copper-chromium layered double hydroxide (CuCr-LDH) was determined to be the most favorable photocatalyst in the photo-Fenton-like process when compared with Fe3O4, Fe2.5Co0.3Zn0.2O4, CuCr-LDH, and Fe3O4/CuCr-LDH composite. Studying the efficiency of the photo-Fenton-like degradation process in the presence of the Fe2.5Co0.3Zn0.2O4/CuCr-LDH composite revealed a degradation rate constant of caffeine twice more than the sum of those obtained for the individual processes. This ascribes to the synergistic effect by which the photo-generated electron-hole from the catalyst and the efficient reduction of Fe3+, Cu2+, etc. during the photo-Fenton-like reaction is accelerated. Moreover, under the optimal condition and after 120 min of heterogenous photo-Fenton-like process at natural pH, > 90% of pollutants mixture was decomposed. The experiments fulfilled in near-real conditions demonstrated I) the high stability and magnetically recoverability of the photocatalyst and II) the proper degradation performance of the applied heterogenous photo-Fenton-process in the removal of pollutant mixture in different water bodies and in the presence of chloride and bicarbonate ions.photo-Fenton-like process at natural pH, > 90% of pollutants mixture was decomposed. The experiments fulfilledin near-real conditions demonstrated I) the high stability and magnetically recoverability of the photocatalys
Published: 2022
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15. A study of the degradation of tetrachlorophenol in the atmosphere by hydroxyl radicals

Author: Al Rawas, Hisham, Louis, Florent, Taamalli, Sonia, Alharzali, Nissrin, El Bakali, Abderrahman, Cernusak, Ivan, Truong, Dinh Hieu, Nguyen, Thi Le Anh, Dao, Duy Quang, Brigante, Marcello, Mailhot, Gilles, Louis, florent, Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 (PC2A), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Comenius University in Bratislava, Institute of Research and Development, Duytan University, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), and Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA)
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences
Abstract: International audience
Published: 2022

16. OH-initiated atmospheric degradation of phosmet insecticide

Author: Al Mawla, Reem, Taamalli, Sonia, El Bakali, Abderrahman, Louis, Florent, Černušák, Ivan, Quang Dao, Duy, Truong, Dinh Hieu, Pham, Thi Yen Nhi, Brigante, Marcello, Mailhot, Gilles, Louis, florent, Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 (PC2A), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Comenius University in Bratislava, Institute of Research and DevelopmentDuy Tan UniversityDa NangVietnam, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), and Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA)
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2022

17. Insights in the atmospheric reactivity of OH radicals with 2,3,4,5-chlorophenol

Author: Al Rawas, Hisham, Alharzali, Nissrin, Taamalli, Sonia, El Bakali, Abderrahman, Louis, Florent, Černušák, Ivan, Truong, Dinh Hieu, Thanh, Nguyen Thi Le, Quang Dao, Duy, Brigante, Marcello, Mailhot, Gilles, Louis, florent, Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 (PC2A), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Comenius University in Bratislava, Institute of Research and DevelopmentDuy Tan UniversityDa NangVietnam, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), and Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA)
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2022

18. Caffeine degradation using peroxydisulfate and peroxymonosulfate in the presence of Mn2O3. Efficiency, reactive species formation and application in sewage treatment plant water

Author: Marcello Brigante, Olivier Monfort, Daqing Jia, Khalil Hanna, Gilles Mailhot, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Comenius University in Bratislava, Ecole Nationale Supérieure de Chimie de Rennes (ENSCR), Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), This work was supported by the Region Council of Auvergne Rhône Alpes, the 'Féderation des Recherches en Environnement' through the CPER 'Environment' founded by the Region Auvergne, the French government and the FEDER (European Community), IRP CHINE program 'Processes for Environmental Remediation (PER)' and CAP 20–25 I-site project. The authors gratefully acknowledge financial support from China Scholarship Council provided to Daqing Jia (No, 201806920034) to study at the University Clermont Auvergne in Clermont-Ferrand, France. We acknowledge the program PAI (Pack Ambition Recherche) SOLDE from the Region Auvergne Rhône Alpes for the financial support of D.J. in this project., Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut Universitaire de France (IUF), and Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.)
Subjects: 010504 meteorology & atmospheric sciences, Strategy and Management, chemistry.chemical_element, Manganese, 010501 environmental sciences, Wastewater, 01 natural sciences, Industrial and Manufacturing Engineering, Catalysis, law.invention, chemistry.chemical_compound, law, Peroxydisulfate, Caffeine, [CHIM]Chemical Sciences, Reactivity (chemistry), Electron paramagnetic resonance, Peroxymonosulfate, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences, General Environmental Science, Spin trapping, Renewable Energy, Sustainability and the Environment, Building and Construction, AOPs, 6. Clean water, Mn2O3, chemistry, 13. Climate action, Degradation (geology), Nuclear chemistry
Abstract: International audience; The crucial role of manganese(III) species in the oxidative and catalytic reactivity of manganese oxides have been widely reported. However, the direct activation of radical precursors by Mn(III) oxides is still a matter of discussion. In this work, the ability of Mn(III)-bearing oxide (Mn2O3) for activation of peroxydisulfate (PS) and peroxymonosulfate (PMS) was evaluated and compared using caffeine (CAF) as a model pollutant. Complete CAF removal was achieved with 5 mM of PS or PMS after 8 h of reaction time, whereas 48% of mineralization was obtained after 70 h of reaction when PMS was used as oxidant. Electron paramagnetic resonance spin trapping (EPR) and radical scavenging experiments showed that the sulfate radical (SO4•–) was the dominant radical in the Mn2O3/PMS system. In comparison, a non-radical mechanism such as Mn2O3 surface-activated PS promoted the removal of CAF in the system of Mn2O3/PS. Liquid chromatography coupled to mass spectrometry analyses enabled the detection of main degradation products and the proposition of the CAF degradation pathways. Investigations in the real sewage treatment plant water showed that the decrease of CAF removal observed in wastewater as compared to pure water can be alleviated by increasing the Mn2O3 dosage. These findings highlight the great ability of Mn-species in PS or PMS activation in different water matrices, which have important implications for the development of novel wastewater treatment technologies.
Published: 2021
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19. New sustainable process for wastewater treatment using recycled and recoverable magnetite with natural iron complexing agent: an example of photochemical AOP

Author: Mailhot, G., Guy, C., Gabet, A., Fazli, A., Metivier, H., Brauer, C. De, Brigante, M., Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and Bonnefoy, Stéphanie
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2021

20. Efficient removal of estrogenic compounds in water by MnIII-activated peroxymonosulfate: Mechanisms and application in sewage treatment plant water

Author: Marcello Brigante, Gilles Mailhot, Daqing Jia, Khalil Hanna, Qinzhi Li, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Ecole Nationale Supérieure de Chimie de Rennes (ENSCR), Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), We gratefully acknowledge the Chinese Scholarship Council of PR China for providing financial support for Daqing Jia. This work was supported by the Institut Universitaire de France, the Region Council of Auvergne Rhône-Alpes and the CNRS., Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Bisphenol A, Manganite, Health, Toxicology and Mutagenesis, 02 engineering and technology, EDCs, 010501 environmental sciences, Inorganic ions, Toxicology, 01 natural sciences, Chloride, chemistry.chemical_compound, Reaction rate constant, Metal-based oxidation, [CHIM.ANAL]Chemical Sciences/Analytical chemistry, medicine, [CHIM]Chemical Sciences, Reactivity (chemistry), Nitrite, Peroxymonosulfate, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences, General Medicine, 021001 nanoscience & nanotechnology, Pollution, 6. Clean water, [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, chemistry, Sulfate radical, Degradation (geology), Sewage treatment, 0210 nano-technology, [CHIM.OTHE]Chemical Sciences/Other, Nuclear chemistry, medicine.drug
Abstract: International audience; In this paper, the degradation of three endocrine-disrupting chemicals (EDCs): bisphenol A (BPA), 17β-estradiol (E2) and 17α-ethinylestradiol (EE2) by manganite (γ-MnOOH) activated peroxymonosulfate (PMS) was investigated. Preliminary optimisation experiments showed that complete degradation of the three EDCs was achieved after 30 min of reaction using 0.1 g L−1 of γ-MnOOH and 2 mM of PMS. The degradation rate constants were determined to be 0.20, 0.22 and 0.15 min−1 for BPA, E2 and EE2, respectively. Combining radical scavenging approaches, Electron paramagnetic resonance (EPR) and X-ray photoelectron spectroscopy (XPS) analyses, we revealed for the first time that about 40% of EDCs degradation can be attributed to heterogeneous electron transfer reaction involving freshly generated Mn(IV), and 60% to sulfate radical degradation pathway. The influence of various inorganic ions on the γ-MnOOH/PMS system indicated that removal efficiency was slightly affected by chloride and carbonate ions, while nitrate and nitrite ions had negligible impacts. The application of γ-MnOOH/PMS system in real sewage treatment plant water (STPW) showed that degradation rate constants of EDCs decreased to 0.035–0.048 min−1 and complete degradation of the three EDCs after 45 min. This study provides new insights into the reactivity of combined γ-MnOOH and PMS, and opens new ways for the application of Mn-bearing species in wastewater treatment technologies.
Published: 2021
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21. A Review of Manganese(III) (Oxyhydr)Oxides Use in Advanced Oxidation Processes

Author: Daqing Jia, Khalil Hanna, Marcello Brigante, Gilles Mailhot, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Ecole Nationale Supérieure de Chimie de Rennes (ENSCR), Institut Universitaire de France (IUF), and Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.)
Subjects: Radical, Inorganic chemistry, Oxide, Pharmaceutical Science, chemistry.chemical_element, Organic chemistry, Context (language use), Review, 02 engineering and technology, Manganese, 010501 environmental sciences, Mn(III) (oxyhydr)oxides, 01 natural sciences, Analytical Chemistry, Catalysis, chemistry.chemical_compound, QD241-441, Peroxydisulfate, Drug Discovery, [CHIM]Chemical Sciences, Physical and Theoretical Chemistry, 0105 earth and related environmental sciences, Singlet oxygen, water treatment, AOPs, 021001 nanoscience & nanotechnology, radicals, 6. Clean water, chemistry, Chemistry (miscellaneous), Molecular Medicine, Hydroxyl radical, 0210 nano-technology
Abstract: The key role of trivalent manganese (Mn(III)) species in promoting sulfate radical-based advanced oxidation processes (SR-AOPs) has recently attracted increasing attention. This review provides a comprehensive summary of Mn(III) (oxyhydr)oxide-based catalysts used to activate peroxymonosulfate (PMS) and peroxydisulfate (PDS) in water. The crystal structures of different Mn(III) (oxyhydr)oxides (such as α-Mn2O3, γ-MnOOH, and Mn3O4) are first introduced. Then the impact of the catalyst structure and composition on the activation mechanisms are discussed, as well as the effects of solution pH and inorganic ions. In the Mn(III) (oxyhydr)oxide activated SR-AOPs systems, the activation mechanisms of PMS and PDS are different. For example, both radical (such as sulfate and hydroxyl radical) and non-radical (singlet oxygen) were generated by Mn(III) (oxyhydr)oxide activated PMS. In comparison, the activation of PDS by α-Mn2O3 and γ-MnOOH preferred to form the singlet oxygen and catalyst surface activated complex to remove the organic pollutants. Finally, research gaps are discussed to suggest future directions in context of applying radical-based advanced oxidation in wastewater treatment processes.
Published: 2021
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22. Synthesis and characterization of new photocatalysts under visible light

Author: Fazli, A., Brigante, M., Khataee, A., Mailhot, G., Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and Bonnefoy, Stéphanie
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2021

23. Quantification and reactivity of inorganic radicals in AOPs

Author: Brigante, Marcello, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and Bonnefoy, Stéphanie
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2021

24. The use of manganese oxides for wastewaters treatment via AOPs

Author: Jia, D., Hanna, K., Mailhot, G., Brigante, M., Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and Bonnefoy, Stéphanie
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2021

25. Significant role of iron on the fate and photodegradation of enrofloxacin

Author: Antonio Arques, Zsuzsanna Varga, Olivier Monfort, Iván Sciscenko, Marcello Brigante, Gilles Mailhot, Stéphane Bouchonnet, Universitat Politècnica de València (UPV), Département de Chimie de l'École polytechnique (X-DEP-CHIM), École polytechnique (X), Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Department of Biochemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Comenius University in Bratislava, and Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de València, Alcoy
Subjects: FQ(s), Health, Toxicology and Mutagenesis, 0208 environmental biotechnology, 02 engineering and technology, 010501 environmental sciences, Photochemistry, furfuryl alcohol, 01 natural sciences, Oxygen, LMCT, chemistry.chemical_compound, INGENIERIA TEXTIL Y PAPELERA, Fluoroquinolone, ligand to metal charge transfer, Triplet state, chemistry.chemical_classification, reactive oxygen species, Enrofloxacin, fluoroquinolone(s), Singlet oxygen, 06.- Garantizar la disponibilidad y la gestión sostenible del agua y el saneamiento para todos, ROS, General Medicine, Pollution, Fluoroquinolone Iron complexation Photo-fenton Photolysis Photoproducts identification Self-sensitization Enrofloxacin, Self-sensitization, QUIMICA FISICA, Environmental Engineering, ENR, Iron, chemistry.chemical_element, Iron complexation, Photo-fenton, Photoproducts identification, Environmental Chemistry, [CHIM]Chemical Sciences, Photodegradation, wastewater treatment plant, 0105 earth and related environmental sciences, WWTP, Pollutant, Reactive oxygen species, Photolysis, isopropyl alcohol, Photodissociation, Public Health, Environmental and Occupational Health, General Chemistry, Hydrogen Peroxide, 020801 environmental engineering, chemistry, 13. Climate action, IPA, Degradation (geology), FFA, Water Pollutants, Chemical
Abstract: [EN] Enrofloxacin (ENR) belongs to the fluoroquinolone (FQ) antibiotics family, which are contaminants of emerging concern frequently found in effluents. Although many works studying photo-Fenton process for FQ degradation have been reported, there are no reports analysing in deep the effect of iron complexation, as well as other metals, towards FQs' photolysis, which, evidently, also contributes in the overall degradation of the pollutant. Therefore, in this work, we report a comparative study between the photochemical fate of ENR and its complex with Fe(III) under simulated sunlight irradiation. In addition, the effect of dissolved oxygen, self-sensitization process, and H2O2 addition on the studied photochemical systems are also investigated. Results indicate that, for free and iron-complexed ENR, singlet oxygen (O-1(2)) is generated from the interaction of its triplet state with ground state oxygen. Half-life time (t(1/2)) of ENR under sun simulated conditions is estimated to be around 22 min, while complexation with iron enhances its photostability, leading to a t(1/2) of 2.1 h. Such finding indicates that at least the presence of iron, might notably increase the residence time of these pollutants in the environment. Eventually, only with the addition of H2O2, the FQ-iron complex is efficiently degraded due to photo-Fenton process even at circumneutral pH values due to the high stability of the formed complex. Finally, after LC/FT-ICR MS analysis, 39 photoproducts are detected, of which the 14 most abundant ones are identified. Results indicate that photoproducts formation is pH and iron dependent., This paper is part of a project that has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 765860 (AQUAlity). The paper reflects only the authors' view and the Agency is not responsible for any use that may be made of the information it contains. M.B. and G. M. acknowledge financial support from the CAP 20-25 I-site project.
Published: 2021
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26. Caffeine degradation in water by Mn2O3 activation of various radical precursors

Author: Jia, D., Monfort, O., Hanna, K., Brezová, V., Mailhot, G., Brigante, M., Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and Bonnefoy, Stéphanie
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2021

27. Activation of persulfate with the magnetically separable co-doped Fe3O4 for highly efficient degradation of a pharmaceutical pollutant

Author: Fazli, A., Brigante, M., Khataee, A., Mailhot, G., Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and Bonnefoy, Stéphanie
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2021

28. Synthesis of a magnetically separable LDH-based S-scheme nano-heterojunction for the activation of peroxymonosulfate towards the efficient visible-light photodegradation of diethyl phthalate

Author: Alireza Khataee, Marcello Brigante, Arezou Fazli, Gilles Mailhot, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and University of Tabriz [Tabriz]
Subjects: General Physics and Astronomy, 02 engineering and technology, 010402 general chemistry, Diethyl phthalate, 01 natural sciences, Catalysis, chemistry.chemical_compound, Visible light photocatalysis, Photodegradation, Peroxymonosulfate, Nanocomposite, S-scheme, Surfaces and Interfaces, General Chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, [CHIM.CATA]Chemical Sciences/Catalysis, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 0104 chemical sciences, Surfaces, Coatings and Films, chemistry, 13. Climate action, 8. Economic growth, Layered double hydroxide, Photocatalysis, Degradation (geology), Leaching (metallurgy), 0210 nano-technology, Visible spectrum, Nuclear chemistry
Abstract: International audience; Herein, a stable and S-scheme Fe 3 O 4 @CuCr-LDH nanocomposite was synthesized and used for the photocatalytic degradation of diethyl phthalate (DEP) through the activation of peroxymonosulfate (PMS). In comparison with pure Fe 3 O 4, and LDH, the Fe 3 O 4 @CuCr-LDH nanocomposite demonstrated significantly enhanced photocatalytic activity due to its Sscheme charge-carrier migration mechanism. The prepared composite was also magnetically recoverable from the treated water which is favorable to avoid the production of secondary pollution. The integration of the composite and visible light showed the presence of a synergy factor of 14 for the degradation of diethyl phthalate. However, the photocatalytic performance of Fe 3 O 4 @CuCr-LDH was dependent on the different physicochemical parameters; wherein, the higher degradation efficiency was achieved using the solution pH of 8, the catalyst, DEP, and PMS concentrations of 1 g L-1 , 20 mg L-1 , and 8 mM, respectively. The high photocatalytic activity of the catalyst was maintained after 5 consecutive reaction runs and the stability of the material was proved by the XPS. Moreover, the ICP-AES analysis proved that the leaching of Fe, Cr, and Cu is lower than the standard concentration in the drinking water. Finally, the mineralization ability and the decreased toxicity of the treated solution of DEP were assessed.
Published: 2021
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29. Environmental Photochemistry: Atmospheric water and advanced oxidation processes

Author: Brigante, Marcello, Bonnefoy, Stéphanie, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), and Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA)
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2021

30. Phenanthrene decomposition in soil washing effluents using UVB activation of hydrogen peroxide and peroxydisulfate

Author: Yufang Tao, Olivier Monfort, Gilles Mailhot, Hui Zhang, Marcello Brigante, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and Department of Environmental Science and Engineering, Wuhan University, 430079, China
Subjects: Environmental Engineering, Ultraviolet Rays, Health, Toxicology and Mutagenesis, 0208 environmental biotechnology, 02 engineering and technology, 010501 environmental sciences, 01 natural sciences, chemistry.chemical_compound, Soil, Nitrate, Peroxydisulfate, Phenanthrene, Photodegradation, Environmental Chemistry, [CHIM]Chemical Sciences, Hydrogen peroxide, skin and connective tissue diseases, Effluent, 0105 earth and related environmental sciences, integumentary system, Public Health, Environmental and Occupational Health, food and beverages, General Medicine, General Chemistry, Phenanthrenes, Pollution, Decomposition, 6. Clean water, 020801 environmental engineering, chemistry, Soil washing effluent, Degradation (geology), Oxidation-Reduction, Water Pollutants, Chemical, Nuclear chemistry
Abstract: International audience; In this work, the decomposition of phenanthrene (PHE) in mimic and real soil washing (SW) effluents was investigated using UVB light assisted activation of hydrogen peroxide (H2O2) and peroxydisulfate (PDS) oxidation processes. The impact of oxidant concentration, initial pH, and coexisting inorganic anions (Cl, HCO3 and NO3) on PHE removal was evaluated. PHE degradation efficiency under UVB irradiation followed the order of UVB/PDS > UVB/H2O2 > UVB. The increase of PHE decomposition efficiency was observed with increasing oxidant dose in the range of 2e30 mM upon the two processes. It was found Cl played different roles in the two activation systems depending on the solution pH and Clconcentration. The influence of HCO3 on PHE elimination was negligible in the UVB/PDS process, while an inhibitory effect was observed in the UVB/H2O2 system. Nitrate inhibited the PHE decay in both UVB/ H2O2 and UVB/PDS processes at the investigated pH 3.3, 7.1 and 8.6. Finally, the application of the two activation processes to the treatment of real SW effluents indicated that up to 85.0% of PHE degradation could be reached under 6 h UVB irradiation with PDS, indicating UVB/PDS process is a promising alternative for SW effluent treatment.
Published: 2021
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31. Impacts of environmental levels of hydrogen peroxide and oxyanions on the redox activity of MnO2 particles

Author: Khalil Hanna, Gilles Mailhot, Marcello Brigante, Daqing Jia, Tao Luo, Olivier Monfort, Qinzhi Li, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Comenius University in Bratislava, Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), Institut Universitaire de France, Region Council of Auvergne Rhone-Alpes, CNRS Centre National de la Recherche Scientifique (CNRS) European Commission, Chinese Scholarship Council of PR China, Ecole Nationale Supérieure de Chimie de Rennes (ENSCR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Subjects: birnessite, Birnessite, 010504 meteorology & atmospheric sciences, chemistry.chemical_element, Oxyanion, hydrogen peroxide, Manganese, 010501 environmental sciences, Management, Monitoring, Policy and Law, 01 natural sciences, Redox, oxyanion, chemistry.chemical_compound, Adsorption, Environmental Chemistry, Hydrogen peroxide, Dissolution, 0105 earth and related environmental sciences, birnessite redox hydrogen peroxide oxyanion, Public Health, Environmental and Occupational Health, General Medicine, [CHIM.MATE]Chemical Sciences/Material chemistry, Phosphate, 6. Clean water, chemistry, 13. Climate action, Environmental chemistry, redox, [CHIM.OTHE]Chemical Sciences/Other
Abstract: International audience; Despite the widespread presence of hydrogen peroxide (H2O2) in surface water and groundwater systems, little is known about the impact of environmental levels of H2O2 on the redox activity of minerals. Here we demonstrate that environmental concentrations of H2O2 can alter the reactivity of birnessite-type manganese oxide, an earth-abundant functional material, and decrease its oxidative activity in natural systems across a wide range of pH values (4-8). The H2O2-induced reductive dissolution generates Mn(ii) that will re-bind to MnO2 surfaces, thereby affecting the surface charge of MnO2. Competition of Bisphenol A (BPA), used as a target compound here, and Mn(ii) to interact with reactive surface sites may cause suppression of the oxidative ability of MnO2. This suppressive effect becomes more effective in the presence of oxyanions such as phosphate or silicate at concentrations comparable to those encountered in natural waters. Unlike nitrate, adsorption of phosphate or silicate onto birnessite increased in the presence of Mn(ii) added or generated through H2O2-induced reduction of MnO2. This suggests that naturally occurring anions and H2O2 may have synergetic effects on the reactivity of birnessite-type manganese oxide at a range of environmentally relevant H2O2 amounts. As layered structure manganese oxides play a key role in the global carbon cycle as well as pollutant dynamics, the impact of environmental levels of hydrogen peroxide (H2O2/MnO2 molar ratio
Published: 2021
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32. Cubic cobalt and zinc co-doped magnetite nanoparticles for persulfate and hydrogen peroxide activation towards the effective photodegradation of Sulfalene

Author: Marcello Brigante, Arezou Fazli, Alireza Khataee, Gilles Mailhot, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and University of Tabriz [Tabriz]
Subjects: Mineralization, General Chemical Engineering, chemistry.chemical_element, 02 engineering and technology, Zinc, Wastewater, 010402 general chemistry, 01 natural sciences, Industrial and Manufacturing Engineering, chemistry.chemical_compound, Environmental Chemistry, Persulfate activation, [CHIM]Chemical Sciences, Photocatalysis, Hydrogen peroxide, Photodegradation, General Chemistry, 021001 nanoscience & nanotechnology, Persulfate, 6. Clean water, Nanomaterial-based catalyst, 0104 chemical sciences, chemistry, Sulfate radical, Hydroxyl radical, 0210 nano-technology, Cobalt, Nuclear chemistry, Magnetic catalysts
Abstract: International audience; In this work, the cubic cobalt and zinc doped and co-doped magnetite nanocatalysts were synthesized and characterized using different analysis. The so-synthesized photocatalysts were used for the activation of hydrogen peroxide (HP) and persulfate (PS) under UVA irradiation. The integration of Fe2.5Co0.3Zn0.2O4 improved the activation of PS and HP; wherein, the UVA/Fe2.5Co0.3Zn0.2O4/PS process demonstrated higher degradation performance for Sulfalene (SFL) as a veterinary pharmaceutical contaminant in water. Afterward, the effect of different physicochemical parameters was studied and the radicals generated through the process were identified using chemical scavengers. UVA/Fe2.5Co0.3Zn0.2O4/PS process brought about 67% of SFL degradation in real wastewater. Moreover, 85% of TOC removal was achieved within 15 h of the above-mentioned process. Eventually, the phototoxicity of the untreated and treated SFL solution after 120 min of the UVA/Fe2.5Co0.3Zn0.2O4/PS process was studied using Lemna minor aquatic species.
Published: 2021
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33. Cézeaux-Aulnat-Opme-Puy De Dôme: a multi-site for the long-term survey of the tropospheric composition and climate change

Author: J.-L. Baray, L. Deguillaume, A. Colomb, K. Sellegri, E. Freney, C. Rose, J. Van Baelen, J.-M. Pichon, D. Picard, P. Fréville, L. Bouvier, M. Ribeiro, P. Amato, S. Banson, A. Bianco, A. Borbon, L. Bourcier, Y. Bras, M. Brigante, P. Cacault, A. Chauvigné, T. Charbouillot, N. Chaumerliac, A.-M. Delort, M. Delmotte, R. Dupuy, A. Farah, G. Febvre, A. Flossmann, C. Gourbeyre, C. Hervier, M. Hervo, N. Huret, M. Joly, V. Kazan, M. Lopez, G. Mailhot, A. Marinoni, O. Masson, N. Montoux, M. Parazols, F. Peyrin, Y. Pointin, M. Ramonet, M. Rocco, M. Sancelme, S. Sauvage, M. Schmidt, E. Tison, M. Vaïtilingom, P. Villani, M. Wang, C. Yver-Kwok, P. Laj, Laboratoire de physique de l'atmosphère (LPA), Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Météorologie Physique (LaMP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS), Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Institut national des sciences de l'Univers (INSU - CNRS), Institut de Chimie de Clermont-Ferrand (ICCF), SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d’Optique Atmosphérique - UMR 8518 (LOA), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), ICOS-RAMCES (ICOS-RAMCES), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), MeteoSwiss, Federal Office of Meteorology and Climatology MeteoSwiss, CNR Institute of Atmospheric Sciences and Climate (ISAC), Consiglio Nazionale delle Ricerche (CNR), Laboratoire d'étude et d'expertise sur la radioactivité de l'environnement [Saint-Paul-Lez-Durance] (PSE-ENV/SEREN/LEREN), Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Laboratoire de l'Atmosphère et des Cyclones (LACy), Centre National de la Recherche Scientifique (CNRS)-Université de La Réunion (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Météo France, Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Laboratoire d'aérologie (LAERO), Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, École des Mines de Douai (Mines Douai EMD), Institut Mines-Télécom [Paris] (IMT), Ecole nationale supérieure Mines-Télécom Lille Douai (IMT Lille Douai), ICOS-ATC (ICOS-ATC), Institut des Géosciences de l’Environnement (IGE), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Recherche pour le Développement (IRD)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Laboratoire d'étude et d'expertise sur la radioactivité de l'environnement (IRSN/PSE-ENV/SEREN/LEREN), Service d'expertise et d'étude en radioprotection des populations et de la radioactivité dans l'environnement (IRSN/PSE-ENV/SEREN), Institut de Radioprotection et de Sûreté Nucléaire (IRSN)-Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS)-Météo-France, Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), and Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)
Subjects: Atmospheric Science, Ice cloud, 010504 meteorology & atmospheric sciences, lcsh:TA715-787, lcsh:Earthwork. Foundations, Climate change, Orography, Context (language use), 010501 environmental sciences, Atmospheric sciences, 7. Clean energy, 01 natural sciences, Trace gas, Aerosol, lcsh:Environmental engineering, Troposphere, Altitude, 13. Climate action, [SDU]Sciences of the Universe [physics], Environmental science, [CHIM]Chemical Sciences, lcsh:TA170-171, 0105 earth and related environmental sciences
Abstract: For the last 25 years, CO-PDD (Cézeaux-Aulnat-Opme-puy de Dôme) has evolved to become a full instrumented platform for atmospheric research. It has received credentials as a national observing platform in France and is internationally recognized as a global station in the GAW (Global Atmosphere Watch) network. It is a reference site of European and national research infrastructures ACTRIS (Aerosol Cloud and Trace gases Research Infrastructure) and ICOS (Integrated Carbon Observing System). The site located on top of the puy de Dôme mountain (1465 m a.s.l.) is completed by additional sites located at lower altitudes and adding the vertical dimension to the atmospheric observations: Opme (660 m a.s.l.), Cézeaux (410 m), and Aulnat (330 m). The integration of different sites offers a unique combination of in situ and remote sensing measurements capturing and documenting the variability of particulate and gaseous atmospheric composition, but also the optical, biochemical, and physical properties of aerosol particles, clouds, and precipitations. Given its location far away from any major emission sources, its altitude, and the mountain orography, the puy de Dôme station is ideally located to sample different air masses in the boundary layer or in the free troposphere depending on time of day and seasons. It is also an ideal place to study cloud properties with frequent presence of clouds at the top in fall and winter. As a result of the natural conditions prevailing at the site and of the very exhaustive instrumental deployment, scientific studies at the puy de Dôme strongly contribute to improving knowledge in atmospheric sciences, including the characterization of trends and variability, the understanding of complex and interconnected processes (microphysical, chemical, biological, chemical and dynamical), and the provision of reference information for climate/chemistry models. In this context, CO-PDD is a pilot site to conduct instrumental development inside its wind tunnel for testing liquid and ice cloud probes in natural conditions, or in situ systems to collect aerosol and cloud. This paper reviews 25 years (1995–2020) of atmospheric observation at the station and related scientific research contributing to atmospheric and climate science.
Published: 2020
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34. Study of nitrogen compounds in different atmospheric compartments

Author: Maxence Brissy, Marcello Brigante, Martin Lerembourg, Pierre Amato, Christelle Ghaffar, Binta Diémé, Institut de Chimie de Clermont-Ferrand (ICCF), and SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)
Subjects: chemistry.chemical_element, Context (language use), Inorganic ions, Nitrogen, Atmosphere, chemistry.chemical_compound, chemistry, Nitrate, 13. Climate action, Environmental chemistry, [SDE]Environmental Sciences, Ammonium, Solid phase extraction, Chemical composition
Abstract: Nitrogen molecules are present in the atmosphere also as inorganic ions (ammonium, nitrate…) and organic (peptides and proteins). Nowadays, there is still poor knowledge concerning the sources and fate of proteins and peptides in the atmosphere. In a larger context aiming at exploring microbial communities’ functioning in the atmosphere, the goal of this study is to examine the atmospheric proteome (peptide and protein contents, sequence, size distribution, biological functions) in the different atmospheric compartment (aerosols, cloud and rain waters).Aerosols, cloud water and rain samples were collected at remote places nearby Clermont – Ferrand city (France) and from the Mountain “Puy de Dôme” (1465 m asl). Cloud droplet impactors and high volume impingers were used for allowing immediate fixation of the samples, by collecting within a protease inhibitor solution. Samples were filtered (0.22 µm porosity) and the proteins from water were digested using trypsin. The peptides were purified by solid phase extraction (SPE) method, concentrated by lyophilisation and analysed by LC – HRMS and MS². Preliminary results indicate the recurrence of certain small peptides in particular. Some of these most frequently observed peptides were selected as models for photochemical experiments. Briefly, these small peptides were irradiated under solar simulated conditions and products were identified by IC – MS, to assess the impact of such processes on the chemical composition of the atmosphere.The next step will consist in analysing our observations along with chemical and biological parameters such as biodiversity, transcriptomic profiles, in order to better understand the interaction between microorganisms and atmosphere processes.
Published: 2020
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35. Follicle-Stimulating Hormone (FSH) Action on Spermatogenesis: A Focus on Physiological and Therapeutic Roles

Author: Daniele Santi, Livio Casarini, Giulia Brigante, Vincenzo Rochira, Pascale Crépieux, Eric Reiter, Manuela Simoni, Giorgia Spaggiari, Department of Biomedical, Metabolic and Neural Sciences [Modena], Università degli Studi di Modena e Reggio Emilia = University of Modena and Reggio Emilia (UNIMORE), Unit of Endocrinology, Department of Medical Specialties, Azienda Ospedaleria Universitaria di Modena-Azienda Ospedaleria Universitaria di Modena, Physiologie de la reproduction et des comportements [Nouzilly] (PRC), Institut Français du Cheval et de l'Equitation [Saumur] (IFCE)-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Dynamiques de populations multi-échelles pour des systèmes physiologiques (MUSCA), Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Physiologie de la reproduction et des comportements [Nouzilly] (PRC), Institut Français du Cheval et de l'Equitation [Saumur] (IFCE)-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Français du Cheval et de l'Equitation [Saumur] (IFCE)-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Mathématiques et Informatique Appliquées du Génome à l'Environnement [Jouy-En-Josas] (MaIAGE), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Ministry of Education, Universities and Research (MIUR), Department of Biomedical, Metabolic and Neural Sciences, Università degli Studi di Modena e Reggio Emilia, Université de Tours-Institut Français du Cheval et de l'Equitation [Saumur]-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Mathématiques et Informatique Appliquées du Génome à l'Environnement [Jouy-En-Josas] (MaIAGE), Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Mathématiques et Informatique Appliquées du Génome à l'Environnement [Jouy-En-Josas] (MaIAGE)
Subjects: endocrine system, [SDV]Life Sciences [q-bio], lcsh:Medicine, Physiology, 030209 endocrinology & metabolism, Review, male infertility, Male infertility, 03 medical and health sciences, Follicle-stimulating hormone, 0302 clinical medicine, Hypogonadotropic hypogonadism, FSH, medicine, Testosterone, 030304 developmental biology, therapy, 0303 health sciences, spermatogenesis, gonadotropins, business.industry, lcsh:R, General Medicine, medicine.disease, Sertoli cell, 3. Good health, medicine.anatomical_structure, Luteinizing hormone, business, Spermatogenesis, hormones, hormone substitutes, and hormone antagonists, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, Hormone
Abstract: International audience; Background: Human reproduction is regulated by the combined action of the follicle-stimulating hormone (FSH) and the luteinizing hormone (LH) on the gonads. Although FSH is largely used in female reproduction, in particular in women attending assisted reproductive techniques to stimulate multi-follicular growth, its efficacy in men with idiopathic infertility is not clearly demonstrated. Indeed, whether FSH administration improves fertility in patients with hypogonadotropic hypogonadism, the therapeutic benefit in men presenting alterations in sperm production despite normal FSH serum levels is still unclear. In the present review, we evaluate the potential pharmacological benefits of FSH administration in clinical practice. Methods: This is a narrative review, describing the FSH physiological role in spermatogenesis and its potential therapeutic action in men. Results: The FSH role on male fertility is reviewed starting from the physiological control of spermatogenesis, throughout its mechanism of action in Sertoli cells, the genetic regulation of its action on spermatogenesis, until the therapeutic options available to improve sperm production. Conclusion: FSH administration in infertile men has potential benefits, although its action should be considered by evaluating its synergic action with testosterone, and well-controlled, powerful trials are required. Prospective studies and new compounds could be developed in the near future.
Published: 2020
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36. Formation of Toxic Unsaturated Multifunctional and Organosulfur Compounds From the Photosensitized Processing of Fluorene and DMSO at the Air‐Water Interface

Author: Hartmut Herrmann, Marcello Brigante, Majda Mekic, Sasho Gligorovski, Yannis G. Lazarou, Xue Li, Jiafa Zeng, Bin Jiang, Institut de Chimie de Clermont-Ferrand (ICCF), and SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, Atmospheric Science, Aqueous solution, 010504 meteorology & atmospheric sciences, Dimethyl sulfoxide, Aqueous two-phase system, Fluorene, Photochemistry, 01 natural sciences, Sea surface microlayer, chemistry.chemical_compound, Geophysics, chemistry, 13. Climate action, Space and Planetary Science, Excited state, Earth and Planetary Sciences (miscellaneous), [CHIM]Chemical Sciences, Triplet state, Organosulfur compounds, 0105 earth and related environmental sciences
Abstract: International audience; Polycyclic aromatic hydrocarbons and dimethyl sulfoxide (DMSO) are ubiquitous at the sea surface. Photochemistry at the air-sea interface is a potentially important source of volatile organic compounds, but the relevant chemical processes are currently not well known. When aqueous solutions containing a mixture of fluorene (FL) and DMSO are irradiated with actinic radiation, a large suite of unsaturated high molecular weight compounds appear in the aqueous phase; a broad variety of saturated and unsaturated oxygenated multifunctional compounds are also observed in the gas phase, most of which are more toxic than FL. A possible sequence of steps leading to some of the observed compounds in aqueous solution as well as in the gas phase is proposed. The reaction pathways initiated by excited triplet state of FL (3 FL*) are supported by theoretical calculations of the reaction Gibbs energies. The formation of organosulfur compounds has been observed to occur in the gas and the aqueous phases initiated by the reaction between 3 FL* and DMSO. The aforementioned photosensitized chemistry at the water surface can have an important impact on the formation of secondary organic aerosol in marine boundary layer as polycyclic aromatic hydrocarbons and DMSO enriched at the water surface are ubiquitous.
Published: 2020
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37. FSH for the Treatment of Male Infertility

Author: Livio Casarini, Clara Lazzaretti, Elia Paradiso, Pascale Crépieux, Giulia Brigante, Vincenzo Rochira, Daniele Santi, Manuela Simoni, Eric Reiter, Università degli Studi di Modena e Reggio Emilia (UNIMORE), Physiologie de la reproduction et des comportements [Nouzilly] (PRC), Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Dynamiques de populations multi-échelles pour des systèmes physiologiques (MUSCA), Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Physiologie de la reproduction et des comportements [Nouzilly] (PRC), Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Mathématiques et Informatique Appliquées du Génome à l'Environnement [Jouy-En-Josas] (MaIAGE), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Department of Biomedical, Metabolic and Neural Sciences [Modena], Università degli Studi di Modena e Reggio Emilia, Azienda Ospedaleria Universitaria di Modena, European Project: 665790,H2020,H2020-MSCA-COFUND-2014,SMART LOIRE VALLEY(2015), University of Modena and Reggio Emilia, Université de Tours-Institut Français du Cheval et de l'Equitation [Saumur]-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Mathématiques et Informatique Appliquées du Génome à l'Environnement [Jouy-En-Josas] (MaIAGE), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Inria Saclay - Ile de France, Université de Tours-Institut Français du Cheval et de l'Equitation [Saumur]-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Tours-Institut Français du Cheval et de l'Equitation [Saumur]-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), International PhD School in Clinical and Experimental Medicine (CEM), Unit of Endocrinology, Department of Medical Specialties, Azienda Ospedaliero-Universitaria, Università degli Studi di Modena e Reggio Emilia = University of Modena and Reggio Emilia (UNIMORE), Institut Français du Cheval et de l'Equitation [Saumur] (IFCE)-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Institut Français du Cheval et de l'Equitation [Saumur] (IFCE)-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Français du Cheval et de l'Equitation [Saumur] (IFCE)-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Mathématiques et Informatique Appliquées du Génome à l'Environnement [Jouy-En-Josas] (MaIAGE), Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Mathématiques et Informatique Appliquées du Génome à l'Environnement [Jouy-En-Josas] (MaIAGE)
Subjects: 0301 basic medicine, Male, [SDV]Life Sciences [q-bio], Gonadotropin-releasing hormone, Review, male infertility, Male infertility, lcsh:Chemistry, 0302 clinical medicine, FSH, Medicine, lcsh:QH301-705.5, Spectroscopy, media_common, fertility, 030219 obstetrics & reproductive medicine, General Medicine, Sertoli cell, Computer Science Applications, medicine.anatomical_structure, Gonadotropin, hormones, hormone substitutes, and hormone antagonists, Signal Transduction, medicine.medical_specialty, endocrine system, medicine.drug_class, media_common.quotation_subject, FSH, gonadotropins, male infertility, spermatogenesis, testis, biosimilars, fertility, therapy, Fertility, testis, Catalysis, Inorganic Chemistry, 03 medical and health sciences, Hypogonadotropic hypogonadism, Internal medicine, Animals, Humans, biosimilars, Physical and Theoretical Chemistry, gonadotropin, Molecular Biology, Infertility, Male, therapy, business.industry, Hypogonadism, Organic Chemistry, medicine.disease, spermatogenesis, 030104 developmental biology, Endocrinology, lcsh:Biology (General), lcsh:QD1-999, Follicle Stimulating Hormone, business, Spermatogenesis, Hormone, gonadotropins
Abstract: International audience; Follicle-stimulating hormone (FSH) supports spermatogenesis acting via its receptor (FSHR), which activates trophic effects in gonadal Sertoli cells. These pathways are targeted by hormonal drugs used for clinical treatment of infertile men, mainly belonging to sub-groups defined as hypogonadotropic hypogonadism or idiopathic infertility. While, in the first case, fertility may be efficiently restored by specific treatments, such as pulsatile gonadotropin releasing hormone (GnRH) or choriogonadotropin (hCG) alone or in combination with FSH, less is known about the efficacy of FSH in supporting the treatment of male idiopathic infertility. This review focuses on the role of FSH in the clinical approach to male reproduction, addressing the state-of-the-art from the little data available and discussing the pharmacological evidence. New compounds, such as allosteric ligands, dually active, chimeric gonadotropins and immunoglobulins, may represent interesting avenues for future personalized, pharmacological approaches to male infertility
Published: 2020
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38. Photochemistry of the Cloud Aqueous Phase: A Review

Author: Marcello Brigante, Angelica Bianco, Monica Passananti, Gilles Mailhot, Laboratoire de Météorologie Physique (LaMP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Institute for Atmospheric and Earth System Research (INAR), University of Helsinki, Institut de Chimie de Clermont-Ferrand (ICCF), SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Dipartimento di Chimica IFM and NIS, Università degli studi di Torino (UNITO), Helsingin yliopisto = Helsingfors universitet = University of Helsinki, and Università degli studi di Torino = University of Turin (UNITO)
Subjects: 010504 meteorology & atmospheric sciences, Pharmaceutical Science, Review, 010501 environmental sciences, Photochemistry, 01 natural sciences, Analytical Chemistry, Ion, lcsh:QD241-441, chemistry.chemical_compound, lcsh:Organic chemistry, Nitrate, oxidant capacity, Drug Discovery, cloud, Reactivity (chemistry), Physical and Theoretical Chemistry, Nitrite, Hydrogen peroxide, 0105 earth and related environmental sciences, [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph], [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, photochemistry, hydroxyl radical, Chemistry, Organic Chemistry, Aqueous two-phase system, Hydrogen Peroxide, Oxidants, Photochemical Processes, Atmosphere, Cloud, Hydroxyl radical, Oxidant capacity, 13. Climate action, Chemistry (miscellaneous), Liquid water content, atmosphere, Molecular Medicine, [CHIM.OTHE]Chemical Sciences/Other
Abstract: This review paper describes briefly the cloud aqueous phase composition and deeply its reactivity in the dark and mainly under solar radiation. The role of the main oxidants (hydrogen peroxide, nitrate radical, and hydroxyl radical) is presented with a focus on the hydroxyl radical, which drives the oxidation capacity during the day. Its sources in the aqueous phase, mainly through photochemical mechanisms with H2O2, iron complexes, or nitrate/nitrite ions, are presented in detail. The formation rate of hydroxyl radical and its steady state concentration evaluated by different authors are listed and compared. Finally, a paragraph is also dedicated to the sinks and the reactivity of the HO• radical with the main compounds found in the cloud aqueous phase. This review presents an assessment of the reactivity in the cloud aqueous phase and shows the significant potential impact that this medium can have on the chemistry of the atmosphere and more generally on the climate.
Published: 2020
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39. Mineralization Enhancement of Pharmaceutical Contaminants by Radical-Based Oxidation Promoted by Oxide-Bound Metal Ions

Author: Mahamadou Kamagate, Mathieu Pasturel, Marcello Brigante, Khalil Hanna, Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université de Man, Institut de Chimie de Clermont-Ferrand (ICCF), SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), Institut Universitaire de France, Région Bretagne, Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)
Subjects: [SDE.IE]Environmental Sciences/Environmental Engineering, Metal ions in aqueous solution, Inorganic chemistry, Oxide, Oxides, Hydrogen Peroxide, General Chemistry, Mineralization (soil science), [CHIM.CATA]Chemical Sciences/Catalysis, 010501 environmental sciences, Contamination, 01 natural sciences, Redox, 6. Clean water, chemistry.chemical_compound, Manganese Compounds, Transition metal, chemistry, Metals, Environmental Chemistry, Adsorption, [CHIM.OTHE]Chemical Sciences/Other, Oxidation-Reduction, 0105 earth and related environmental sciences
Abstract: International audience; While the use of transition metal oxides in catalyzing advanced oxidation reactions has been widely investigated, very few reports have focused on how the preliminary contact of oxides with target compounds may affect the succession of reaction. In this study, we examined the adsorption and electron transfer reactions of two fluoroquinolones, flumequine (FLU), and norfloxacin (NOR), with goethite (α-FeOOH) or manganese (Mn) oxide, and their impact on the subsequent mineralization of target compounds using HO or SO under UVA irradiation. Intriguingly, higher total organic carbon (TOC) removal was achieved when antibiotics and metal oxides were allowed for preequilibration before starting the oxidation reaction. The rate and extent of TOC removal are strongly dependent on the molecule structure and the redox-active mineral used, and much less on the preequilibration time. This high efficiency can be ascribed to the presence of reduced metal ions, chemically or photochemically generated during the first stage, onto oxide minerals. Oxide-bound Mn plays a crucial role in catalyzing oxidant decomposition and then producing greater amounts of radical species through a photoassisted redox cycle, regardless of the underlying surface, MnO or MnOOH. This finding will be of fundamental and practical significance to Mn-based oxidation reactions and wastewater treatment processes.
Published: 2020
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40. Degradation of Acetaminophen via UVA-induced advanced oxidation processes (AOPs). Involvement of different radical species: HO , SO4− and HO2/O2−

Author: Xiaoning Wang, Wenbo Dong, Gilles Mailhot, Marcello Brigante, Zhangxiong Wu, Soochow University, Institut de Chimie de Clermont-Ferrand - Clermont Auvergne (ICCF), Sigma CLERMONT (Sigma CLERMONT)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS), Fudan University [Shanghai], Institut de Chimie de Clermont-Ferrand (ICCF), SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), ANR-16-IDEX-0001,CAP 20-25,CAP 20-25(2016), and Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Sigma CLERMONT (Sigma CLERMONT)
Subjects: Environmental Engineering, Order of reaction, Health, Toxicology and Mutagenesis, Radical, 0208 environmental biotechnology, 02 engineering and technology, 010501 environmental sciences, Advanced oxidation process, Photochemistry, 7. Clean energy, 01 natural sciences, Synergistic effects, Sodium persulfate, chemistry.chemical_compound, Reaction rate constant, Environmental Chemistry, Photocatalysis, Hydrogen peroxide, 0105 earth and related environmental sciences, [SDE.IE]Environmental Sciences/Environmental Engineering, Public Health, Environmental and Occupational Health, General Medicine, General Chemistry, Radicals, Pollution, 020801 environmental engineering, [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, chemistry, UVA, 13. Climate action, Flash photolysis, [CHIM.OTHE]Chemical Sciences/Other
Abstract: International audience; In this work, UVA radiation that is part of solar light is taken as the irradiation source and radicals (HOradical dot, SO4radical dot− and HO2radical dot/O2radical dot−) are generated through activation of hydrogen peroxide (H2O2), sodium persulfate (Na2S2O8) and Bismuth catalyst (BiOCl), respectively. The distinguished performance in removing acetaminophen (ACTP), a model pharmaceutical pollutant, by these three radicals was compared for the first time. Effect of pH, halide ions concentration and interfacial mechanism have been investigated in detail. Interestingly, results show that heterogeneous UVA/BiOCl process has higher degradation efficiency than homogeneous UVA/H2O2 and UVA/Na2S2O8 systems whatever the solution’s pH. To explain these results, second order reaction rate constant (kradical, ACTP) have been determined with laser flash photolysis (LFP) or radical scavenging experiments. The strongly interfacial-depended HO2radical dot/O2radical dot− radicals have the lowest second order rate constant with ACTP but highest steady state concentration. BiOCl is much easier activated by UVA, and outstanding ACTP mineralization can be achieved. Combination of BiOCl and Na2S2O8 exhibits synergistic effects rather than antagonism effects with H2O2. This study highlights the relative effective utilization of solar light through interfacial directed BiOCl photocatalysis and its synergistic effects with traditional oxidants.
Published: 2020
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41. Comparative study of persulfate and hydrogen peroxide activation by humic acid coated magnetic materials for BPA degradation: A life cycle assessment evaluation

Author: GONÇALVES, N. P. F., COSTAMAGNA, M., Minella, M., Brigante, M., BIANCO-PREVOT, A., Institut de Chimie de Clermont-Ferrand (ICCF), SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), and Bonnefoy, Stéphanie
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2019

42. Enhancement of iron-mediated activation of persulfate using catechin: From generation of reactive species to atenolol degradation in water

Author: Yanlin Wu, Wenbo Dong, Marcello Brigante, Gilles Mailhot, Olivier Monfort, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Shanghai, Institut de Chimie de Clermont-Ferrand (ICCF), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), 270437, National Natural Science Foundation of China, Région Auvergne-Rhône-Alpes, European Regional Development Fund, Centre National de la Recherche Scientifique, CPER, ANR-16-IDEX-0001,CAP 20-25,CAP 20-25(2016), Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes-Centre National de la Recherche Scientifique (CNRS), and Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Sigma CLERMONT (Sigma CLERMONT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: inorganic chemicals, Reaction mechanism, Environmental Engineering, Antioxidant, 010504 meteorology & atmospheric sciences, Radical, medicine.medical_treatment, Iron, 010501 environmental sciences, Photochemistry, 01 natural sciences, Catechin, Ferrous, Water Purification, chemistry.chemical_compound, medicine, Environmental Chemistry, [CHIM]Chemical Sciences, Hydrogen peroxide, Waste Management and Disposal, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences, Sulfates, Hydrogen Peroxide, Persulfate, Pollution, Pollutant degradation, chemistry, Atenolol, 13. Climate action, Sulfate radical, Iron reduction, Ferric, Hydroxyl radical, Water Pollutants, Chemical, medicine.drug
Abstract: International audience; Persulfate (PS) activation reaction,which forms sulfate radical (SO4•−), can be used to degrade organic pollutants in water. However, a drawback of this reaction is that the regeneration of ferrous ions requires a high concentration of hydrogen peroxide (Fenton-like reaction) or use of UV radiation. Catechin (CAT), a non-toxic antioxidant of natural origin from tea, is used in this work to improve the sulfate radical-mediated degradation of atenolol (ATL, a model pollutant) in water using relatively low concentrations of reactive chemical species (less than100 μM). To the best of the author's knowledge, the direct effect of CAT on the oxidation state of iron,which is promoted by the reduction of ferric into ferrous ions with the enhancement of SO4•− formation in the presence of PS, is demonstrated for the first time. The enhancement versus inhibition effect of CAT and the chemicalmechanismof the iron-based activation process are explained. Results show that UVA radiation, which is representative of solar light, accelerates the initial degradation of ATL bymore than 30% through ferric iron photolysis. Finally, a reaction mechanism leading to the formation of hydroxyl radicals (HO•) and SO4•− is proposed considering the implication of different activation/reaction chemical steps.
Published: 2019
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43. Phenanthrene degradation using Fe(III)-EDDS photoactivation under simulated solar light: A model for soil washing effluent treatment

Author: Marcello Brigante, Yufang Tao, Hui Zhang, Gilles Mailhot, School of Resources and Environmental Science, Wuhan University, Institut de Chimie de Clermont-Ferrand (ICCF), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), ANR-16-IDEX-0001,CAP 20-25,CAP 20-25(2016), Institut de Chimie de Clermont-Ferrand - Clermont Auvergne (ICCF), and Sigma CLERMONT (Sigma CLERMONT)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Environmental Engineering, Health, Toxicology and Mutagenesis, Radical, 0208 environmental biotechnology, 02 engineering and technology, 010501 environmental sciences, Ferric Compounds, 01 natural sciences, Soil, chemistry.chemical_compound, EDDS, Reaction rate constant, Solar Energy, Environmental Chemistry, [CHIM]Chemical Sciences, Reactivity (chemistry), ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences, Chemistry, Public Health, Environmental and Occupational Health, General Medicine, General Chemistry, Phenanthrenes, Phenanthrene, Persulfate, Pollution, 6. Clean water, 020801 environmental engineering, Degradation (geology), Flash photolysis, [CHIM.OTHE]Chemical Sciences/Other, Nuclear chemistry
Abstract: In this work, for the first time, the nonionic surfactant polyoxyethylene-(20)-sorbitan monooleate (Tween 80, C64H124O26) aided soil washing effluent was treated by enhanced activation of persulfate (PS) using Fe(III)-EDDS (EDDS: ethylenediamine-N, N-disuccinic acid) complexes under simulated solar light irradiation. The performance of this system was followed via the production and reactivity of radical species (SO4 -, HO , Cl2 -) and degradation of phenanthrene (PHE) used as a model pollutant in soils. Different physico-chemical parameters such as the concentration of reactive species and pH were investigated through the PHE degradation efficiency. The second-order rate constants of the reactions for generated radicals with PHE and Tween 80 in solution were identified through competitive reaction experiments under steady-state conditions and application of nanosecond laser flash photolysis (LFP) as well. A kinetic approach was applied to assess the selectivity and reactivity of photo-generated radicals in aqueous medium in order to explain the observed degradation trends. This work proposes an innovative technology of management of soil washing solutions using Fe(III)-EDDS complexes and solar light for the activation of persulfate.
Published: 2019
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44. Formation of highly oxygenated multifunctional compounds from cross-reactions of carbonyl compounds in the atmospheric aqueous phase

Author: Tan He, Yannis G. Lazarou, Jing Cai, Gwendal Loisel, Sasho Gligorovski, Davide Vione, Bin Jiang, Marcello Brigante, Majda Mekic, Jiangping Liu, Wentao Zhou, Xue Li, Zhiqiang Yu, State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, Department of Computer Science [HKU], City University of Hong Kong [Hong Kong] (CUHK), College of Automation Engineering, Nanjing University of Aeronautics and Astronautics (CAE-NUAA), NUAA, Boston Children's Hospital, Institut de Chimie de Clermont-Ferrand (ICCF), SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Dipartimento di Chimica IFM and NIS, Università degli studi di Torino (UNITO), and Università degli studi di Torino = University of Turin (UNITO)
Subjects: Atmospheric Science, Reaction mechanism, 010504 meteorology & atmospheric sciences, Photosensitizer, 010501 environmental sciences, Photochemistry, Mass spectrometry, 01 natural sciences, chemistry.chemical_compound, Cross-Reactions, Ultraviolet visible spectroscopy, Molecule, ORBITRAP, SOA, Atmospheric Chemistry, Cloud, FT-ICR-MS, Sea Surface, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences, General Environmental Science, Chemistry, Photodissociation, Aqueous two-phase system, 13. Climate action, Atmospheric chemistry, Glyoxal, [CHIM.OTHE]Chemical Sciences/Other
Abstract: There is increasing evidence that aqueous-phase atmospheric chemistry is an important source of secondary organic aerosols (SOA), but this chemistry is currently not adequately represented in atmospheric models due to the missing information on most products. The main focus of this study is to provide molecular-level insight into the photosensitized reaction mechanism of pyruvic acid (PA) alone in the atmospheric aqueous phase, and of mixtures of PA with glyoxal (GL), a typical and widely occurring carbonyl compound. With two ultrahigh resolution mass spectrometers, ORBITRAP and FT-ICR-MS, a broad and complex spectrum of organic products were unambiguously identified. The detected formation of organic compounds illustrates the progression from C3 to C20 molecules through direct PA photolysis and irradiation of PA + GL. The performed ab-initio calculations indicate that cross-reactions (i.e., PA + GL) are more likely than self-reactions (i.e., PA alone) in clouds and aerosol deliquescent particles. Hence, this result implies that photosensitizers like PA can initiate the transformation of common organic cloud constituents like GL into highly oxygenated multifunctional compounds. These high-molecular- weight compounds that are formed in significant amount could potentially impact optical and cloud-forming properties of aerosols, especially if they partition to the aerosol surface.
Published: 2019
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45. Amino acids phototransformation pathways in cloud water: iron complexation vs hydroxyl radical mediated oxidation. Kinetic, mechanisms and environmental relevance

Author: Wang, Y., Voyard, G., Mailhot, G., Brigante, M., Institut de Chimie de Clermont-Ferrand (ICCF), SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), and Bonnefoy, Stéphanie
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2019

46. Photochemical oxidation by ferrate: A preliminary study applied to water treatment

Author: Monfort, O., Brigante, M., Mailhot, G., Institut de Chimie de Clermont-Ferrand (ICCF), SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), and Bonnefoy, Stéphanie
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2019

47. Deep insights into synthesis and performance of hybrid iron-based/humic acid nanoparticles for the degradation of organic pollutants

Author: Bianco-Prevot, A., Gonçalves, N. P.F., Calza, P., Minella, M., Fabbri, D., Magnacca, G., Brigante, M., Mailhot, G., Institut de Chimie de Clermont-Ferrand (ICCF), SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), and Bonnefoy, Stéphanie
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2019

48. Improved Fenton-like processes in the presence of catechin obtained from green tea

Author: Wu, Y., Dong, W., Mailhot, G., Brigante, M., Institut de Chimie de Clermont-Ferrand (ICCF), SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), and Bonnefoy, Stéphanie
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2019

49. Activation of persulfate using different manganese oxides: kinetic, activation mechanism, oxidation state impact and UVA enhancement

Author: Jia, D., Brigante, M., Monfort, O., Hanna, K., Mailhot, G., Institut de Chimie de Clermont-Ferrand (ICCF), SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), and Bonnefoy, Stéphanie
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2019

50. Environmental Photochemistry: generation of inorganic radicals in atmospheric waters and for advanced oxidation processes

Author: Brigante, M., Institut de Chimie de Clermont-Ferrand (ICCF), SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), and Bonnefoy, Stéphanie
Subjects: [CHIM] Chemical Sciences, [CHIM]Chemical Sciences, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2019

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