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偶氮染料在活性炭纤维电极上的伏安特性
引用本文:杨卫身,周艳伟.偶氮染料在活性炭纤维电极上的伏安特性[J].福建建筑高等专科学校学报,2012(3):210-213,249.
作者姓名:杨卫身  周艳伟
作者单位:[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
基金项目:福建省青年科技人才创新项目(2006173003);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。

关 键 词:活性炭纤维  偶氮染料  电化学  循环伏安

Voltammetric characteristics of azo dye on activated carbon fiber electrode
Yang Weishen,Zhou Yanwei.Voltammetric characteristics of azo dye on activated carbon fiber electrode[J].Journal of Fujian College of Architecture & C.E.,2012(3):210-213,249.
Authors:Yang Weishen  Zhou Yanwei
Affiliation:1. Environmental and Equipment Engineering Department, Fujian University of Technology, Fuzhou 350118, China; 2. Environmental Protection Branch of Guangzhou Electric Apparatus Research Institute, Guangzhou 510300, China)
Abstract: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.
Keywords:activated carbon fiber  azo dye  electrochemistry  cyclic voltammetry
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