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Fenton试剂氧化降解亚甲基蓝的动力学研究

Kinetic study on the degradation of Methylene Blue by Fenton oxidation

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【作者】 吴辉陈娟李成芳彭毛宋功武

【Author】 WU Hui,CHEN Juan,LI Cheng-fang,PENG Mao,SONG Gong-wu(School of Chemistry and Chemical Engineering,Hubei University,Wuhan 430062,China)

【机构】 湖北大学化学化工学院

【摘要】 采用Fenton试剂氧化降解亚甲基蓝,通过对亚甲基蓝染料处理过程中的紫外、红外光谱分析可知,Fenton对亚甲基蓝的结构造成了严重破坏,探讨了Fenton试剂氧化降解亚甲基蓝的反应动力学.结果表明,Fenton氧化过程中,H2O2初始浓度、FeSO4初始浓度及温度对反应都有影响,且确定反应为一级反应,其动力学方程式为:-dC/dt=0.184 2exp(-3.53/RT).[H2O2]始0.885 61.[Fe2+]始0.885 19.

【Abstract】 According to the UV-Vis spectrum,it is concluded that Fenton oxidation is an effective method for the degration of Methlene Blue.According to the IR spectrum,it is concluded that structure of Methylene Blue was destroyed by Fenton reagent.The degradation process of Methylene Blue in Fenton reaction was investigated.The kinetics of the degradation of Methylene Blue by Fenton oxidation was studied.It is shown that the temperature and the initial concentration of hydrogen peroxide and ferrous sulphate affect the reation.It is confirmed that the reaction is the first-order reaction.The equation of reaction kinetics as follows.-dC/dt=0.184 2exp(-3.53/RT)·0.885 6·0.883 19

【关键词】 Fenton试剂亚甲基蓝动力学
【Key words】 Fenton oxidationMethylene Bluekinetics
【基金】 湖北省自然科学基金项目(2007ABA197)资助
  • 【文献出处】 湖北大学学报(自然科学版) ,Journal of Hubei University(Natural Science) , 编辑部邮箱 ,2009年01期
  • 【分类号】X703
  • 【被引频次】23
  • 【下载频次】742
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