铁柱撑蒙脱石非均相UV/Fenton反应对模拟橙黄G染料废水的脱色机理研究  

Mechanism of Decolorization of the Azo Dye Orange G in Simulated Wastewater via a Heterogeneous UV /Fenton-like Reaction Catalysed by Iron Pillared Montmorillonite

作　　者：刘一帆[1] 成思敏[1] 吴宏海[1] 管玉峰[1] 蒋芬芬[1] 舒月红[1] 

机构地区：[1]华南师范大学化学与环境学院,广州510006

出　　处：《华南师范大学学报（自然科学版）》2014年第2期72-78,共7页Journal of South China Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(41072034);广东省自然科学基金项目(10150163101000028)

摘　　要：以高活性铁柱撑蒙脱石(Fe-Mt)为催化剂,采用非均相UV/Fenton反应体系对含橙黄G(OG)染料废水进行氧化脱色处理研究.实验结果表明,温度30℃、OG质量浓度50 mg/L、pH 3.0、H2O2浓度20.0 mmol/L和Fe-Mt用量1.0 g/L为最佳脱色条件,180 min后OG的脱色率为99.7%.上述反应条件下,非均相Fe-Mt催化光助-Fenton体系对橙黄G的脱色反应遵循两阶段准一级反应动力学.The azo dye Orange G （OG） in wastewater was treated via heterogeneous UV/Fenton-like reaction catalysed by a highly catalytic active iron pillared montmorillonite （Fe-Mt）. The results showed that the pH 3.0, H2O2 20.0 mmol/L and Fe-Mt 1.0 g/L are the optimum conditions for the OG decolorization （i.e., 99.7% after 180 min） if the temperature and OG concentration were kept constant at 30℃ and 50 mg/L, respectively. Under the above conditions, the OG decolorization followed the two-stage pseudo-first-order kinetics in the heterogeneous UV/Fenton-like reaction system.

关 键 词：铁柱撑蒙脱石 非均相UV FENTON反应 橙黄G 脱色 

分 类 号：X705[环境科学与工程—环境工程]