高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (9): 1665.

• 研究论文 • 上一篇    下一篇

活性碳纤维阴极电芬顿反应降解微囊藻毒素研究

王爱民, 曲久辉, 史红星, 茹加, 刘会娟, 雷鹏举   

  1. 中国科学院生态环境研究中心环境水质学国家重点实验室, 北京100085
  • 收稿日期:2004-07-05 出版日期:2005-09-10 发布日期:2005-09-10
  • 基金资助:

    国家自然科学基金(批准号:50478115,20337020);国家杰出青年基金(批准号:50225824)资助.

Degradation of Microcystins by Electro-Fenton Reaction Using an Activated Carbon Fiber Cathode

WANG Ai-Min, QU Jiu-Hui, SHI Hong-Xing, RU Jia, LIU Hui-Juan, LEI Peng-Ju   

  1. State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
  • Received:2004-07-05 Online:2005-09-10 Published:2005-09-10

摘要: 以具有高比表面积的活性碳纤维作为阴极,通过电芬顿反应降解水中微囊藻毒素(MCRR,MCLR)的电化学方法系统考察了电流密度、pH值和Fe2+浓度等因素对微囊藻毒素降解效果的影响.实验结果表明,在Fe2+浓度为1.0mmol/L和电流密度为6.6mA/cm2条件下,电化学处理60min,MCRR(8.81mg/L)去除率为75%,MCLR(6.36mg/L)去除率为94%.证明过氧化氢可以通过电化学还原在活性碳纤维阴极表面高效产生,微囊藻毒素可被高效降解去除.

关键词: 活性碳纤维阴极, 电芬顿反应, 降解, 微囊藻毒素

Abstract: The degradation of Microcystins(MC-RR, MC-LR) via electro-Fenton reaction using the activated carbon fiber(ACF) felt cathode with a large surface area was experimentally investigated. The effect of applied current, initial pH values of solution and Fe2+ ion concentration were discussed in detail. The results show that 75% of MC-RR and 94% MC-LR were eliminated after 60 min electrolysis under the operation conditions of 6.6 mA/cm2 current density, 1.0 mmol/L Fe2+ at pH=3. The results indicate that H2O2 could be effectively electrogenerated from O2 reduction on the ACF felt cathode and microcystins could be rapidly eliminated.

Key words: Activated carbon fiber cathode, Electro-Fenton reaction, Degradation, Microcystins

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