活性碳纤维阴极电芬顿反应降解微囊藻毒素研究  

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

作　　者：王爱民[1] 曲久辉[1] 史红星[1] 茹加[1] 刘会娟[1] 雷鹏举[1] 

机构地区：[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

出　　处：《高等学校化学学报》2005年第9期1669-1672,共4页Chemical Journal of Chinese Universities

基　　金：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.

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.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 Fe^2＋ 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/cm^2 current density, 1.0 mmol/L Fe^2＋ 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.

关 键 词：活性碳纤维阴极 电芬顿反应 降解 微囊藻毒素 

分 类 号：O646.5[理学—物理化学] X524[理学—化学]