Preparation of Ti/PTFE-F-PbO2 Electrode with a Long Life from the Sulfamic Acid Bath and Its Application in Organic Degradation  

作　　者：洪夏萍 张蓉 童少平 马淳安 

机构地区：[1]College of Chemical Engineering and Materials Science, State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032,China

出　　处：《Chinese Journal of Chemical Engineering》2011年第6期1033-1038,共6页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China （20406019, 20876151）

摘　　要：A polytetrafluoroethylene （PTFE）-doped PbO2 electrode on a Ti substrate was prepared by galvanostatic method from the sulfamic acid bath （Ti/PTFE-F-PbO2-I） or nitric acid bath （Ti/PTFE-F-PbO2-II）. Scanning Electron Microscopy revealed that the Ti/PTFE-PbO2-I electrode had a more regular morphology with smaller size crystals than the Ti/PTFE-F-PbO2-II electrode. On the basis of the results of both the accelerated electrolysis test and the empirical formula for estimating the service life of an electrode, the service life of the Ti/PTFE-PbO2-I electrode was predicted to be more than 7 years under conventional electrolysis conditions （0.1 A·cm^-2）. During the treatment of 4-chlorophenol-contaminated water, the Ti/PTFE-PbO2-I anode showed both a good electro-catalytic activity and high electrochemical stability, exhibiting an excellent potential application.polytetrafluoroethylene (PTFE ) 在 Ti 底层上做了 PbO2 电极被 galvanostatic 方法从 sulfamic 酸洗澡(Ti/PTFE-F-PbO2-I ) 或硝酸洗澡(Ti/PTFE-F-PbO2-II ) 准备。扫描电子显微镜学表明 Ti/PTFE-PbO2-I 电极比 Ti/PTFE-F-PbO2-II 电极与更小的尺寸晶体有更常规的形态学。根据为估计一个电极的服务生活的加速的电解测试和实验公式的结果， Ti/PTFE-PbO2-I 电极的服务生活被预言是在常规电解条件下面的超过 7 年(0.1

关 键 词：lead dioxide sulfamic acid electrochemical oxidation 4-CHLOROPHENOL 

分 类 号：TQ341.106[化学工程—化纤工业] X132[环境科学与工程—环境科学]