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]

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

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 >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

ENSCL
CNRS
Centrale Lille
Univ. Artois
Université de Lille

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Research team(s) :

Matériaux pour la catalyse (MATCAT)

Submission date :

2019-09-25T14:38:12Z
2021-03-18T09:18:00Z