偶氮染料在活性炭纤维电极上的伏安特性  

Voltammetric characteristics of azo dye on activated carbon fiber electrode

作　　者：杨卫身[1] 周艳伟[2] 

机构地区：[1]福建工程学院环境与设备工程系,福建福州350118 [2]广州电器科学研究院环保所,广东广州510300

出　　处：《福建工程学院学报》2012年第3期210-213,249,共5页Journal of Fujian University of Technology

基　　金：福建省青年科技人才创新项目(2006F3003);福建工程学院引进人才基金项目(GY-Z0856)

摘　　要：为了进一步明确偶氮染料在活性炭纤维电极上的电化学行为,在一个以活性炭纤维为工作电极、铂为辅助电极的三电极体系中,考察了苋菜红在活性炭纤维电极上的伏安特性。实验结果表明:(1)ACF电极与Pt电极析氢与析氧电位相近,Pt电极作为供电电极的存在对苋菜红在ACF电极上的伏安特性无影响;(2)负极化时,ACF具有较大的充电电流;(3)苋菜红在-0.1～-08V点位区间内存在电还原与电吸附的可能性,在0.6～1.4V存在电氧化可能性。To further clarify the electrochemical behaviours of azo dye at activated carbon fiber （ACF） electrode, the voltammmetric characteristics of Amaranth dye were researched in a three- electrode system using ACF as working electrode and Pt as auxiliary electrode. The experimental re- suits show that （ 1 ） the hydrogen and oxygen evolution potentials of ACF are similar to those of Pt electrode, and the presence of Pt as a current electrode does not affect the voltammetric characteris- tics of Amaranth at ACF electrode; （2） A greater charging current is achieved in the negative polar- ization of ACF; （3） Amaranth on ACF is likely to conduct elecroreduction and dectroabsorption in the range of -0.1 - -0.8V and to conduct electrooxidation in the range of 0.6 - 1.4V.

关 键 词：活性炭纤维 偶氮染料 电化学 循环伏安 

分 类 号：X703.1[环境科学与工程—环境工程]