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3. Toxicology and Industrial Hygiene

Author

Fabbricino, Massimiliano, primary, Andreozzi, Roberto, additional, Clarizia, Laura, additional, Cesaro, Alessandra, additional, Policastro, Grazia, additional, and di Giovanni, Concetta, additional

Published
2023
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7. Heterogeneous Explosions II

Author

Fabbricino, Massimiliano, primary, Andreozzi, Roberto, additional, Clarizia, Laura, additional, Cesaro, Alessandra, additional, Policastro, Grazia, additional, and di Giovanni, Concetta, additional

Published
2023
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9. Preface

Author

Fabbricino, Massimiliano, primary, Andreozzi, Roberto, additional, Clarizia, Laura, additional, Cesaro, Alessandra, additional, Policastro, Grazia, additional, and di Giovanni, Concetta, additional

Published
2023
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10. Theory of Thermal Explosions

Author

Fabbricino, Massimiliano, primary, Andreozzi, Roberto, additional, Clarizia, Laura, additional, Cesaro, Alessandra, additional, Policastro, Grazia, additional, and di Giovanni, Concetta, additional

Published
2023
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11. Subject Index

Author

Fabbricino, Massimiliano, primary, Andreozzi, Roberto, additional, Clarizia, Laura, additional, Cesaro, Alessandra, additional, Policastro, Grazia, additional, and di Giovanni, Concetta, additional

Published
2023
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12. Preventive and Protective Measures

Author

Fabbricino, Massimiliano, primary, Andreozzi, Roberto, additional, Clarizia, Laura, additional, Cesaro, Alessandra, additional, Policastro, Grazia, additional, and di Giovanni, Concetta, additional

Published
2023
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14. Homogeneous Explosions

Author

Fabbricino, Massimiliano, primary, Andreozzi, Roberto, additional, Clarizia, Laura, additional, Cesaro, Alessandra, additional, Policastro, Grazia, additional, and di Giovanni, Concetta, additional

Published
2023
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40. Visible – Light Driven Systems: Effect of the Parameters Affecting Hydrogen Production through Photoreforming of Organics in Presence of Cu2O/TiO2 Nanocomposite Photocatalyst

Author

Muscetta, Marica, Clarizia, Laura, Race, Marco, Andreozzi, Roberto, Marotta, Raffaele, and Somma, Ilaria Di

Subjects
biomedical_chemical_engineering
Abstract

Several studies have shown that combining TiO2 and Cu2O enhances the photocatalytic activity of the material by generating a heterojunction capable of extending the light absorption in the visible and reducing the electron-hole recombination rate. Ball milling has been chosen as an alternative methodology for photocatalyst preparation, among the several techniques documented in the literature review. The results of a previously reported investigation enabled the identification of the most effective photocatalyst that can be prepared for hydrogen generation by combining Cu2O and TiO2 (i.e., 1%wt Cu2O in TiO2 photocatalyst prepared by ball-milling method at 200 rpm and 1 min milling time). To optimize photocatalytic hydrogen generation in the presence of the greatest photocatalyst, the effects of (i) sacrificial species and their concentration, (ii) temperature, and (iii) pH of the system are taken into account, resulting in a light-to-chemical energy efficiency of 8% under the best-tested conditions. Last but not least, the possibility of using the present photocatalytic system under direct solar light irradiation is evaluated: the results indicate that nearly 60% of the hydrogen production recorded under sunlight can be attributed to the visible component of the solar spectrum, while the remaining 40% can be attributed to the UV component.

Published
2023

41. List of contributors

Author

Adil, Syed Farooq, primary, Andreozzi, Roberto, additional, Barreca, Davide, additional, Cai, Jingsheng, additional, Carraro, Giorgio, additional, Chithambararaj, A., additional, Chu, Deryn, additional, Clarizia, Laura, additional, Di Somma, Ilaria, additional, Faria, Joaquim L., additional, Figueiredo, José L., additional, Gasparotto, Alberto, additional, Ge, Mingzheng, additional, Guo, Wenxi, additional, Huang, Jianying, additional, Kalpana, Dharmalingam, additional, Kalpana, S., additional, Khan, Mohammad M., additional, Khan, Mujeeb, additional, Kuriki, Ryo, additional, Lai, Yuekun, additional, Li, Jiangtian, additional, Li, Teng, additional, Lin, Zhiqun, additional, Maccato, Chiara, additional, Maeda, Kazuhiko, additional, Marotta, Raffaele, additional, Morales-Torres, Sergio, additional, Nagar, Rupali, additional, Pastrana-Martínez, Luisa M., additional, Russo, Danilo, additional, Senthil, V., additional, Silva, Adrián M.T., additional, Sun, Hongqi, additional, Varrla, Eswaraiah, additional, Vinayan, Bhaghavathi P., additional, Wang, Mengye, additional, Xu, Zijie, additional, Ye, Meidan, additional, Yogamalar, N.R., additional, and Zhang, Jinqiang, additional

Published
2018
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45. Visible—Light Driven Systems: Effect of the Parameters Affecting Hydrogen Production through Photoreforming of Organics in Presence of Cu 2 O/TiO 2 Nanocomposite Photocatalyst.

Author

Muscetta, Marica, Clarizia, Laura, Race, Marco, Andreozzi, Roberto, Marotta, Raffaele, and Di Somma, Ilaria

Subjects
INTERSTITIAL hydrogen generation, HYDROGEN production, COPPER, TITANIUM dioxide, IRRADIATION, SOLAR spectra, ELECTRON-hole recombination
Abstract

Several studies have shown that combining TiO2 and Cu2O enhances the photocatalytic activity of the material by generating a heterojunction capable of extending the light absorption in the visible and reducing the electron-hole recombination rate. Ball milling has been chosen as an alternative methodology for photocatalyst preparation, among the several techniques documented in the literature review. The results of a previously reported investigation enabled the identification of the most effective photocatalyst that can be prepared for hydrogen generation by combining Cu2O and TiO2 (i.e., 1%wt. Cu2O in TiO2 photocatalyst prepared by ball-milling method at 200 rpm and 1 min milling time). To optimize photocatalytic hydrogen generation in the presence of the greatest photocatalyst, the effects of (i) sacrificial species and their concentration, (ii) temperature, and (iii) pH of the system are taken into account, resulting in a light-to-chemical energy efficiency of 8% under the best-tested conditions. Last but not least, the possibility of using the present photocatalytic system under direct solar light irradiation is evaluated: the results indicate that nearly 60% of the hydrogen production recorded under sunlight can be attributed to the visible component of the solar spectrum, while the remaining 40% can be attributed to the UV component. [ABSTRACT FROM AUTHOR]

Published
2023
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46. Effect of Synthesis Method on Reaction Mechanism for Hydrogen Evolution over Cu x O y /TiO 2 Photocatalysts: A Kinetic Analysis.

Author

Clarizia, Laura, Vitiello, Giuseppe, Bericat Vadell, Robert, Sá, Jacinto, Marotta, Raffaele, Di Somma, Ilaria, Andreozzi, Roberto, and Luciani, Giuseppina

Subjects
*CHARGE carrier lifetime, *COPPER, *PHOTOCATALYSTS, *HYDROGEN evolution reactions, *PHOTOCATALYTIC oxidation, *SEMICONDUCTOR design
Abstract

The existing literature survey reports rare and conflicting studies on the effect of the preparation method of metal-based semiconductor photocatalysts on structural/morphological features, electronic properties, and kinetics regulating the photocatalytic H2 generation reaction. In this investigation, we compare the different copper/titania-based photocatalysts for H2 generation synthesized via distinct methods (i.e., photodeposition and impregnation). Our study aims to establish a stringent correlation between physicochemical/electronic properties and photocatalytic performances for H2 generation based on material characterization and kinetic modeling of the experimental outcomes. Estimating unknown kinetic parameters, such as charge recombination rate and quantum yield, suggests a mechanism regulating charge carrier lifetime depending on copper distribution on the TiO2 surface. We demonstrate that H2 generation photoefficiency recorded over impregnated CuxOy/TiO2 is related to an even distribution of Cu(0)/Cu(I) on TiO2, and the formation of an Ohmic junction concertedly extended charge carrier lifetime and separation. The outcomes of the kinetic analysis and the related modeling investigation underpin photocatalyst physicochemical and electronic properties. Overall, the present study lays the groundwork for the future design of metal-based semiconductor photocatalysts with high photoefficiencies for H2 evolution. [ABSTRACT FROM AUTHOR]

Published
2023
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49. Near UV‐Irradiation of CuOx‐Impregnated TiO2 Providing Active Species for H2 Production Through Methanol Photoreforming

Author

Vitiello, Giuseppe, primary, Clarizia, Laura, additional, Abdelraheem, Wael, additional, Esposito, Serena, additional, Bonelli, Barbara, additional, Ditaranto, Nicoletta, additional, Vergara, Alessandro, additional, Nadagouda, Mallikarjuna, additional, Dionysiou, Dionysios D., additional, Andreozzi, Roberto, additional, Luciani, Giuseppina, additional, and Marotta, Raffaele, additional

Published
2019
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