杨凤林
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恒电位下活性艳蓝KN-R在活性炭纤维电极上的脱色行为
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Indexed by:期刊论文

Date of Publication:2005-11-30

Journal:化工学报

Included Journals:Scopus、EI、PKU、ISTIC、CSCD

Volume:56

Issue:11

Page Number:2178-2182

ISSN No.:0438-1157

Key Words:电极电位;活性炭纤维;染料;脱色;电氧化;电还原

Abstract:在恒电位模式下,采用隔膜电解槽,分别以活性炭纤维(ACF)为阳极或阴极,研究了蒽醌染料活性艳蓝KN-R的脱色行为.测量了ACF的线性扫描极化曲线,进行了控电位下活性艳蓝KN-R在ACF电极上的整体电解,考察了脱色率、TOC、CODCr去除率同电极电位之间的关系.结果表明:该染料在ACF电极上的起始氧化电位和起始还原电位分别为0.5 V和-0.7 V,氧化峰电位为1.1 V;当电位为-0.6~0.4 V时,脱色源于染料在ACF上的吸附,极化对吸附行为影响不大;当电位为-1.5~-0.7 V时,脱色以染料的电还原为主,反应遵循准一级动力学;当电位为0.5~1.6 V时,脱色以染料的电氧化为主,反应同样遵循准一级动力学.

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Gender:Male

Alma Mater:大连工学院

Degree:Master's Degree

School/Department:环境学院

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