| 石墨电极对甲基橙和敌草隆的电化学降解研究 |
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| 引用本文： | 黄星发,王曦曦,郑正.石墨电极对甲基橙和敌草隆的电化学降解研究[J].中国给水排水,2009,25(21). |
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| 作者姓名： | 黄星发 王曦曦 郑正 |
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| 作者单位： | 南京大学,环境学院污染控制与资源化利用国家重点实验室,江苏,南京,210093 |
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| 摘 要： | 以石墨电极作阳极,考察了石墨电极对甲基橙和敌草隆的电化学降解效果.结果表明,酸性和中性条件有利于石墨电极降解有机污染物;当甲基橙和敌草隆的初始浓度分别为50、20mg/L时,在19 mA/cm~2的电流密度下电解4 h后,对甲基橙和敌草隆的去除率分别为86.6%和90.7%,对TOC的去除率分别为74.5%和85.5%;电解过程中,石墨电极的极化作用较小,电化学性能稳定.
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| 关 键 词： | 石墨电极 电化学降解 甲基橙 敌草隆 |
Electrochemical Degradation of Methyl Orange and Diuron by Graphite Electrode |
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| HUANG Xing-fa,WANG Xi-xi,ZHENG Zheng.Electrochemical Degradation of Methyl Orange and Diuron by Graphite Electrode[J].China Water & Wastewater,2009,25(21). |
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| Authors: | HUANG Xing-fa WANG Xi-xi ZHENG Zheng |
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| Affiliation: | HUANG Xing-fa,WANG Xi-xi,ZHENG Zheng(State Key Laboratory of Pollution Control and Resources Reuse,School of Environment,Nanjing University,Nanjing 210093,China) |
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| Abstract: | Taking the graphite electrode as the anode,the electrochemical degradation efficiency of methyl orange and diuron by graphite electrode was investigated.The results show that the acidic and neutral conditions are favorable to the degradation of organic pollutants by the graphite electrode.When the initial concentrations of methyl orange and diuron are 50 mg/L and 20 mg/L respectively,the current density is 19 mA/cm2,and the electrolysis time is 4 h,the removal rates of methyl orange and diuron are 86.6% and... |
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| Keywords: | graphite electrode electrochemical degradation methyl orange diuron |
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