电极成对电解苋菜红脱色研究  

Paired Electrolytic Decoloration of Amaranth

作　　者：付红苹[1] 杨卫身[1] 李笑岚[1] 张鹏[1] 杨凤林[1] 

机构地区：[1]大连理工大学环境与生命学院环境电化学实验室,大连116024

出　　处：《环境科学与技术》2007年第5期92-94,共3页Environmental Science & Technology

摘　　要：采用恒电流模式,同时以活性炭纤维(ACF)为阳极和阴极,在无隔膜电解槽中研究了不同电流密度下偶氮染料苋菜红的电化学脱色。结果表明在0.6～1.5 mA/cm2时,电解槽中发生阳极电氧化和阴极电还原同时进行的成对电解脱色。成对电解的发生,可以提高电解槽的工作处理能力。当电流密度为0.9 mA/cm2时,脱色率达到95.5%。Under galvanostatic model using activated carbon fiber as anode and cathode,the decoloration behavior of amaranth,one of azo dyes was studied by paired electrolysis in an undivided cell.The relationship between decoloration effect and current density was investigated.Results showed that the paired electrolysis which occurs in the range of 0.6mA.cm-2 to 1.5mA.cm-2 can improve the performance of the cell,with color removal up to 95.5% at 0.9mA.cm-2.

关 键 词：无隔膜电解槽 活性炭纤维 成对电解 偶氮染料 脱色 

分 类 号：X703[环境科学与工程—环境工程]