首页 | 本学科首页   官方微博 | 高级检索  
     检索      

氧化物修饰电极降解有机污染物的电催化特性
引用本文:赵国华,胡惠康,李楹,高廷耀.氧化物修饰电极降解有机污染物的电催化特性[J].中国环境科学,2003,23(4):0-0.
作者姓名:赵国华  胡惠康  李楹  高廷耀
作者单位:1. 同济大学化学系,上海,200092
2. 同济大学城市污染控制国家工程中心,上海,200092
基金项目:2001年度教育部留学回国人员科研启动基金项目
摘    要: 采用高温热解氧化沉积法将金属氧化物SnO2, RuO2, Cr2O3, PdO修饰到钛基体表面,制备得到4种金属氧化物修饰电极.比较4种电极氧化降解苯、苯甲酸、苯酚、苯胺、硝基苯以及甲基橙染料6种有机污染物的氧化电流效率,结果表明,电极在各种介质中的析氧电位和氧化反应传递系数(β值)是衡量电极能否有效处理有机污染物废水的两个重要指标,其中SnO2电极的析氧电位最高,PbO电极的b值最大,SnO2电极的β 值次之.这为研制和筛选高效催化电极提供了理论依据.

关 键 词:金属氧化物修饰电极  电催化氧化  析氧电位  氧化反应传递系数
文章编号:1000-6923(2003)04-0385-05
收稿时间:1900-01-01;
修稿时间:2002年12月18

Eletrocatalytic character of oxide modified electrodes in degradation of organic pollutant
ZHAO Guo-hua,HU Hui-kang,LI Ying,GAO Ting-yao.Eletrocatalytic character of oxide modified electrodes in degradation of organic pollutant[J].China Environmental Science,2003,23(4):0-0.
Authors:ZHAO Guo-hua  HU Hui-kang  LI Ying  GAO Ting-yao
Institution:ZHAO Guo-hua1,HU Hui-kang1,LI Ying1,GAO Ting-yao2
Abstract:Four metal oxide modified electrodes were prepared with adopting pyrolysis oxido-sedimentation method to modify four kinds of metal oxides (SnO2, RnO2, Cr2O3, PdO) on the surface of titanium subtract. Comparing the oxidative current efficiencies of these four electrodes in oxidation degradation of six organic pollutants (benzene, benzoic acid, phenol, aniline, nitrobenzene, methyl orange), the oxygen evolution potential and the transfer coefficient of oxidation reaction ( value) of electrode in various mediums were two important indexes for weighing whether the modified electrode could dispose efficiently the organic pollutant wastewater, in which the oxygen evolution potential of SnO2 electrode was the highest; the value of PdO electrode was the largest and the next was the value of SnO2 electrode. This could provide a theoretical direction basis for preparing and screening highly efficient catalytic electrodes.
Keywords:metal oxide modified electrode  electrocatalytic oxidation  oxygen evolution potential  transfer coefficient of oxidation reaction
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《中国环境科学》浏览原始摘要信息
点击此处可从《中国环境科学》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号