Comparative Study of Microwave-Assisted Decolorization of Methyl Orange Solution Catalyzed by Cr(III) and Cr(VI)

摘要：

Chromium compounds can catalyze the degradation of methyl orange (MO) with hydrogen peroxide irradiate by microwave. Comparative investigation was carried out with Cr(III)-H2O2 and Cr(VI)-H2O2 systems respectively. Results showed that Cr(VI) had broader appropriate pH value range than that of Cr(III). The catalysis route is Cr(VI)→Cr(III) → Cr(IV)→Cr(V)→Cr(VI) and the Cr(III) is more susceptible to pH value variation than Cr(VI). Chromium compounds in composite wastewater can be used as catalysts for degradation of persistent organic pollutants.

关键词： azo dye microwave chromium Fenton-like

作者: LIU Zuohua DU Jun ZHOU Xiaoxia LIU Renlong TAO Changyuan

作者单位: College of Chemistry & Chemical Engineering,Chongqing University,Chongqing,China,400030; Key Laborat College of Chemistry & Chemical Engineering,Chongqing University,Chongqing,China,400030; Chemistry Staffroom,Third Military Medical University,Chongqing,400038,China

会议类型: 国际会议

会议名称: 第四届亚洲过程系统工程会议暨2007年中国国际系统工程年会(The 4th International Symposium on Design,Operation & Control of Chemical Processes)(PSE ASIA 2007)

会议地点: 西安

会议语种:英文

在线出版日期: 2007-08-15（万方平台首次上网日期，不代表论文的发表时间）