碳纳米管修饰石墨电极处理硝基苯废水  

Wastewater Containing Nitrobenzene Treatment by Carbon Nanotubes Modified Graphite Electrodes

作　　者：刘屹[1] 刘昊[1] 张美秀[1] 刘淼[1] 

机构地区：[1]吉林大学环境与资源学院环境科学系,长春130012

出　　处：《科学技术与工程》2014年第18期140-142,148,共4页Science Technology and Engineering

摘　　要：对石墨电极预处理,然后运用多壁碳纳米管对其进行修饰。利用该修饰电极对硝基苯模拟废水及实际硝基苯废水进行电解,与未修饰的预处理石墨电极的处理效果进行对比。对苯酚模拟废水和实际水样分别进行交流电电解。多壁碳纳米管修饰的石墨电极对硝基苯模拟废水中硝基苯浓度的处理效率由80.4%提高到96.8%,COD去除率由79.8%提高到96.4%;对实际废水的硝基苯浓度去除率由74.2%提高到87.6%,COD去除率由86.9%提高到93.2%,处理效果明显提高。After pretreating the graphite electrode, multi-walled carbon nanotubes will be used to modify it which could be applied to electrolyze nitrobenzene simulated wastewater and practical nitrobenzene wastewater. With these steps finished, a comparison of treatment efficiency would be made between unmodified and modified pretreated graphite electrode. By electrolyzing simulated wastewater and practical wastewater with alternating current respectively, it is found that the treatment efficiency of phenol concentration in stimulated wastewater increases from 80. 4% to 96. 8%, and the COD removal rate advances from 79.8% to 96.4% ; meanwhile, the treatment efficiency of phenol concentration in practical wastewater increases from 74. 2% to 87.6%, and the COD removal rate advances from 86.9% to 93.2% , which shows an obvious improvement of treatment efficiency.

关 键 词：碳纳米管 石墨电极 交流电电解 硝基苯废水 

分 类 号：O657.1[理学—分析化学]