Preparation and electrochemical properties of Ce-Ru-SnO2 ternary oxide anode and electrochemical oxidation of nitrophenols

被引：54
作者：
Liu, Yuan [1 ,2 ]
Liu, Huiling [1 ]
Ma, Jun [1 ]
Li, Junjing [1 ]
机构：
[1] Harbin Inst Technol, SKLUWRE, Sch Municipal & Environm Engn, Harbin 150090, Peoples R China
[2] Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 401122, Peoples R China
来源：
JOURNAL OF HAZARDOUS MATERIALS | 2012年 / 213卷
基金：
中国国家自然科学基金;
关键词：
Electrochemical oxidation; Ternary oxides; Tin dioxide; Nitrophenols; Modification; WASTE-WATER; ELECTROCATALYTIC PROPERTIES; SUBSTITUTED PHENOLS; P-NITROPHENOL; DEGRADATION; PERFORMANCE; ELECTRODES; MECHANISM; KINETICS; SURFACE;
D O I：
10.1016/j.jhazmat.2012.01.090
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A cerium doped ternary SnO2 based oxides anode that is CeO2-RuO2-SnO2 (Ce-Ru-SnO2) anode, was prepared by facile thermal decomposition technique. XRD was used to characterize the crystal structures of modified SnO2 anodes. Electrochemical impedance spectroscopy (EIS) and accelerated life test were also utilized to study the electrochemical property of Ce-Ru-SnO2 anode. The results indicated that Ce-Ru-SnO2 anode possessed smaller charge transfer resistance and longer service life than other modified SnO2 anodes. Oxidants, such as hydroxyl radicals, hydrogen peroxide and hypochlorite ions were determined. Electrochemical oxidation of nitrophenols (NPs) were conducted and compared with previous studies. The degradation of nitrophenols revealed two distinguishing laws for mononitrophenol and multinitrophenols. The Ce-Ru-SnO2 anode is considered to be a promising material for the treatment of organic pollutants due to its high electrochemical activity and benign stability. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：222 / 229
页数：8
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