标題：Efficient degradation of clofibric acid by electro-enhanced peroxydisulfate activation with Fe-Cu/SBA-15 catalysts

作者： Lin, H (Lin, Heng); Zhong, X (Zhong, Xin); Ciotonea, C (Ciotonea, Carmen); Fan, XH (Fan, Xiaohui); Mao, XY (Mao, Xiaoyu); Li, YT (Li, Yating); Deng, B (Deng, Bin); Zhang, H (Zhang, Hui); Royer, S (Royer, Sebastien)

來源出版物：APPLIED CATALYSIS B-ENVIRONMENTAL 卷：230 頁碼: 1-10 DOI：10.1016/j.apcatb.2018.02.014 出版年： AUG 15 2018

摘要：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 (SO4 center dot(-) and center dot OH). 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.

入藏号：WOS:000429500100001

文獻類型：Article

語種：English

作者關鍵詞：Clofibric acid; Sulfate radical; Hydroxyl radical; Heterogeneous catalysis; Electrochemical reaction

擴展關鍵詞： HETEROGENEOUS FENTON CATALYST; RESPONSE-SURFACE METHODOLOGY; MESOPOROUS SILICA SPHERES; CARBON-FELT CATHODE; AQUEOUS-SOLUTION; ORANGE 7; WASTE-WATER; ELECTRO/FE2+/PEROXYDISULFATE PROCESS; ORGANIC CONTAMINANTS; RADICAL GENERATION

通訊作者地址：Zhang, H (reprint author), Wuhan Univ, Dept Sci & Environm Engn, Hubei Environm Remediat Mat Engn Technol Res Ctr, POB C319,Luoyu Rd 129, Wuhan 430079, Hubei, Peoples R China.

Royer, S (reprint author), Univ Artois, Univ Lille, CNRS, ENSCL,Cent Lille,UMR 8181,UCCS, F-59000 Lille, France.

電子郵件地址：eeng@whu.edu.cn; sebastien.royer@univ-lille1.fr

地址：

[Lin, Heng; Zhong, Xin; Fan, Xiaohui; Mao, Xiaoyu; Li, Yating; Deng, Bin; Zhang, Hui] Wuhan Univ, Dept Sci & Environm Engn, Hubei Environm Remediat Mat Engn Technol Res Ctr, POB C319,Luoyu Rd 129, Wuhan 430079, Hubei, Peoples R China.

[Ciotonea, Carmen; Royer, Sebastien] Univ Artois, Univ Lille, CNRS, ENSCL,Cent Lille,UMR 8181,UCCS, F-59000 Lille, France.

影響因子：9.446