光助Fenton催化氧化反应降解孔雀石绿试验研究  

Studies on Light Catalysis Oxidation Degradation of Malachite Green by Photo-Fenton Reagent

作　　者：郑怀礼[1,2] 彭德军[1] 李宏[3] 李晓红[3] 王白雪[1] 谢礼国[4] 

机构地区：[1]重庆大学化学化工学院 [2]重庆大学三峡库区生态环境教育部重点实验室,重庆400045 [3]重庆大学资源与环境工程学院 [4]重庆大学三峡库区生态环境教育部重点实验室

出　　处：《光谱学与光谱分析》2007年第5期1006-1009,共4页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(20577072);重庆市自然科学基金重点项目(CSTC-2004BA7019)资助

摘　　要：研究了光助Fenton催化氧化反应降解染料孔雀石绿。研究的主要内容包括孔雀石绿的特征波长及吸光度曲线、孔雀石绿的浓度-吸光度标准曲线、初始pH值对降解效果的影响、Fe2+的优化用量试验、H2O2的优化用量试验、不同光源对孔雀石绿降解效果的影响、引入阳离子交换树脂作为载体固定Fe2+对降解脱色的影响。通过研究获得了降解孔雀石绿染料溶液的优化实验条件。研究表明,太阳光照能够有效地促进孔雀石绿染料的降解脱色,且大大缩短反应时间;在引入阳离子交换树脂后,可增强Fenton试剂氧化反应的活性,降解效果更好。In the present paper, light catalysis oxidation degradation of Malachite Green by Photo-Fenton reagent was researched. The influences of various parameters such as the wave length-absorbency curve of Malachite Green, the concentrationabsorbency curve of Malachite Green, initial pH, optimum dosage of Fe^2＋ , optimum dosage of H2O2, different light sources and cation-exchange resin, on dye degradation were researched. Through numerous experiments, the optimum condition for Malachite Green degradation was given. Under the optimal conditions, the sun light can promote this reaction apparently and the reaction time can greatly be shortened too. After the cation-exchange resin was introduced into Fenton system, the activation of Fenton reagent for degradation reaction was enhanced to a great extent, and the degradation effect of Malachite Green was better.

关 键 词：孔雀石绿 降解 FENTON反应 光催化氧化 染料 

分 类 号：O643[理学—物理化学]