Efficient degradation of clofibric acid ...
Document type :
Article dans une revue scientifique
Permalink :
Title :
Efficient degradation of clofibric acid by electro-enhanced peroxydisulfate activation with Fe-Cu/SBA-15 catalyst
Author(s) :
Lin, Heng [Auteur]
Wuhan University [China]
Zhong, Xin [Auteur]
Wuhan University [China]
Ciotonea, Carmen [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Fan, Xiaohui [Auteur]
Wuhan University [China]
Mao, Xiaoyu [Auteur]
Wuhan University [China]
Li, Yating [Auteur]
Wuhan University [China]
Deng, Bin [Auteur]
Wuhan University [China]
Zhang, Hui [Auteur]
Wuhan University [China]
royer, sebastien [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Wuhan University [China]
Zhong, Xin [Auteur]
Wuhan University [China]
Ciotonea, Carmen [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Fan, Xiaohui [Auteur]
Wuhan University [China]
Mao, Xiaoyu [Auteur]
Wuhan University [China]
Li, Yating [Auteur]
Wuhan University [China]
Deng, Bin [Auteur]
Wuhan University [China]
Zhang, Hui [Auteur]
Wuhan University [China]
royer, sebastien [Auteur]

Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Journal title :
Applied Catalysis B: Environmental
Volume number :
230
Pages :
1-10
Publisher :
Elsevier
Publication date :
2018-08-15
English keyword(s) :
Clofibric acid
Sulfate radical
Hydroxyl radical
Heterogeneous catalysis
Electrochemical reaction
Sulfate radical
Hydroxyl radical
Heterogeneous catalysis
Electrochemical reaction
HAL domain(s) :
Chimie/Catalyse
English abstract : [en]
Mesoporous silica supported mono and bimetallic oxides are employed for the degradation of clofibric acid (CFA) in the heterogeneous electro-enhanced persulfate activation system. The oxidation system includes heterogeneous ...
Show more >Mesoporous silica supported mono and bimetallic oxides are employed for the degradation of clofibric acid (CFA) in the heterogeneous electro-enhanced persulfate activation system. The oxidation system includes heterogeneous peroxydisulfate (PDS, S2O82−) activation coupled with electrochemical process, leading to the production of highly reactive radicals (SO4radical dot− and radical dotOH). The influence of degradation reaction parameters, amongst the initial solution pH, current density, S2O82− concentration and catalyst loading, is investigated. Efficiency of catalyst to generate reactive radicals is confirmed using electron paramagnetic resonance (EPR) analysis and radical quenching experiments. The catalytic performance was evaluated in terms of CFA concentration abatement, while the stability of catalyst is followed by quantifying the metal leaching into the aqueous solution during reaction and the evolution of surface characteristics of the materials before and after reaction. The main degradation intermediates were identified in order to propose a possible degradation pathway of CFA.Show less >
Show more >Mesoporous silica supported mono and bimetallic oxides are employed for the degradation of clofibric acid (CFA) in the heterogeneous electro-enhanced persulfate activation system. The oxidation system includes heterogeneous peroxydisulfate (PDS, S2O82−) activation coupled with electrochemical process, leading to the production of highly reactive radicals (SO4radical dot− and radical dotOH). The influence of degradation reaction parameters, amongst the initial solution pH, current density, S2O82− concentration and catalyst loading, is investigated. Efficiency of catalyst to generate reactive radicals is confirmed using electron paramagnetic resonance (EPR) analysis and radical quenching experiments. The catalytic performance was evaluated in terms of CFA concentration abatement, while the stability of catalyst is followed by quantifying the metal leaching into the aqueous solution during reaction and the evolution of surface characteristics of the materials before and after reaction. The main degradation intermediates were identified in order to propose a possible degradation pathway of CFA.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
ENSCL
CNRS
Centrale Lille
Univ. Artois
Université de Lille
CNRS
Centrale Lille
Univ. Artois
Université de Lille
Collections :
Research team(s) :
Matériaux pour la catalyse (MATCAT)
Submission date :
2019-09-25T14:38:12Z
2021-03-18T09:18:00Z
2021-03-18T09:18:00Z