1. Photocatalytic degradation of paracetamol mediating luminous textile: Intensification of the chemical oxidation
- Author
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Houda Dhibi, Monia Guiza, Abdelkrim Bouzaza, Abdelmottaleb Ouederni, Lina Lamaa, Laure Péruchon, Cédric Brochier, Abdeltif Amrane, Sivachandiran Loganathan, Sami Rtimi, Aymen Amin Assadi, Ecole Nationale d'Ingénieurs de Gabès (ENIG), Université de Gabès, Ecole Nationale Supérieure de Chimie de Rennes (ENSCR), 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), Brochier Technologies, Clarkson University, SRM Institute of Science and Technology (SRM), and Global Institute for Water, Environment and Health (Giweh)
- Subjects
Water pollution ,Process Chemistry and Technology ,Paracetamol degradation ,[CHIM]Chemical Sciences ,Cellulosic paper ,Luminous textile ,Photocatalysis ,Safety, Risk, Reliability and Quality ,Waste Management and Disposal ,Biotechnology - Abstract
International audience; An innovative photoreactor was applied as an emerging advanced oxidation process (AOP) to investigate Paracetamol (PL) degradation under different operating conditions. The system consisted of a textile woven from optical fiber and textile yarn. The luminous fiber textile was coupled to UVA LED, and the photocatalytic textile fibers is impregnated with TiO2. The effectiveness of configuration I, based on a luminous textile with UV LED, was compared with that based of TiO2 immobilized on cellulosic paper (CP) with external UV irradiation (configuration 2). The specific degradation rate obtained with configuration 1 was 40 times higher than that with configuration II. Configuration I also showed efficient performance in mineralization per Watt consumed, with values reaching 81 times higher than those obtained with configuration II. Also, to achieve high removal effi-ciency of the pollutant with the new technology of luminous textiles, the effect of operating parameters, namely pollutant concentration, UV intensity, flow rate and TiO2 mass deposited were discussed. It is worth noting that the optimal conditions for a 95.7 % degradation rate of 1 mg/L of Paracetamol were obtained with 26 g/m2 mass catalyst, 5 W/m2 UV intensity and 52.2 L/h flow rate after 340 min. In addition, upon associating two luminous textiles, the degradation efficiency reached 98.76 % after only 140 min. Besides, by adding hydrogen peroxide (H2O2) in the optimal conditions with 10 mg/L of Paracetamol concentration, the degradation efficiency reached 98.81 % after 240 min. The excellent performances in terms of degradation rate, mineralization per Watt consumed, and energy consumption make luminous textiles an attractive alternative to conventional photo-catalytic reactors designed for the removal of Paracetamol in water and wastewater.
- Published
- 2023
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