不同电极降解2-氯苯酚  

Electro-catalytic oxidation of 2-chlorophenol on several electrodes in aqueous solution

作　　者：郭新艳[1] 魏杰[1,2] 王东田[1,2,3] 王钦[4] 黄勇[3] 

机构地区：[1]苏州科技学院化学与生物工程学院,苏州215009 [2]江苏省环境功能材料重点实验室,苏州215009 [3]苏州科技学院环境科学与工程学院,苏州215011 [4]中国石化上海石油化工股份有限公司,上海200540

出　　处：《环境工程学报》2012年第3期833-838,共6页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(51178283);国家"水体污染控制与治理"科技重大专项(2008ZX07421-002);江苏高校优势学科建设工程资助项目;江苏省环境科学与工程重点实验室开放课题(Zd091204);江苏省"青蓝工程"资助项目

摘　　要：采用电沉积法制备了4种钛基二氧化铅电极,并与商业化的钛基RuO2电极进行了对比。分别用XRD和阳极极化曲线对电极性能进行了表征,并以2-氯苯酚为目标污染物,考察了6种电极的电催化氧化性能。研究结果表明,以钛板为基体的系列电极的综合性能优于以钛网为基体的相应电极。以β-PbO2为活性外层的二氧化铅电极的综合性能优于以RuO2为活性外层的电极。6种电极对2-氯苯酚降解反应均遵循一级反应动力学规律。其中Ti/α-PbO2/β-PbO2电极析氧电位最高,电催化性能最好,对2-氯苯酚的去除率可达99.3%。Four different types of Ti-base lead dioxide electrodes were prepared by electrodeposition,compared with the electrodes with RuO2 and characterized by SEM,XRD and anodic polarization curves,respectively.The removal rate of 2-chlorophenol model organic compound was investigated on six electrodes.The results indicated that combination properties of the electrodes on the Ti plate are better than the electrodes on the Ti mesh and Ti-base lead dioxide electrodes with β-PbO2 active layer are better than electrodes with RuO2.In addition,the degradation of 2-chlorophenol follows the first kinetics on six electrodes.Ti/α-PbO2/β-PbO2 eletrode in six electrodes has the maximum oxygen evolution potential and the best electro-catalytic oxidation activity to degradate 2-chlorophenol with the removal rate of 99.3%.

关 键 词：电催化氧化 钛基电极 2-氯苯酚 

分 类 号：X703.1[环境科学与工程—环境工程]