化工进展

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阴极材料对偶氮染料电-Fenton降解的影响

汤 茜1,2,范宗良2,毛志红3,李贵贤2,余 华2   

  1. 1吉林师范大学环境工程学院;2兰州理工大学石油化工学院;3甘肃银光聚银化工有限公司
  • 出版日期:2010-02-05 发布日期:2010-02-05

Effect of cathode on the electro-Fenton degradation of azo dye Methyl Orange

TANG Qian1,2,FAN Zongliang2,MAO Zhihong3,LI Guixian2,YU Hua2   

  1. 1 College of Environmental Engineering,Jilin Normal University;2 College of Petrochemical Engineering,Lanzhou University of Technology;3 Gansu Yinguang Juyin Chemical Engineering Limited Company
  • Online:2010-02-05 Published:2010-02-05

摘要: 选择偶氮染料甲基橙(MO)为目标污染物,在电-Fenton降解体系中考察了4种自制阴极电极(石墨电极、钢丝电极、镀钛钢丝电极和镀银钢丝电极)对MO的氧化降解的影响。研究表明,在相同的实验条件下,镀银钢丝电极作阴极时,MO的去除率最大,镀钛钢丝电极、钢丝电极、石墨电极依次减小,且4种阴极材料下MO的氧化降解反应均符合一级反应动力学。

Abstract: The electro-Fenton degradation of azo dye methyl orange (MO) in water was conducted with four different cathodes (plumbaginous cathode,steel wire cathode,titanizing steel wire cathode and silver-gilt steel wire cathode),and the effect of cathode on the removal rate of MO was investigated. The decoloration value of MO is the highest with the silver-gilt steel wire cathode under same conditions,and then the titanizing steel wire cathode,the steel wire cathode and the plumbaginous cathode in turn. Moreover,the degradation of MO accorded with a first order kinetic equation with all the four different cathodes.

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