Nafion膜中嵌入Fe^(2+)光催化降解亚甲基蓝的研究  

Photocatalytic Degradation of Methylene Blue Using Nafion Membranes Embedded by Fe^(2+)

作　　者：黄丽珠[1] 何晓云[1] 陈日耀[1] 郑曦[1] 陈震[1] 

机构地区：[1]福建师范大学化学与材料学院,福州350007

出　　处：《环境科学与技术》2006年第1期12-13,56,共3页Environmental Science & Technology

基　　金：福建省科技厅重点项目(02H034JB02177)

摘　　要：将亚铁离子嵌入Nafion膜中利用Fe3+/Fe2+光催化降解亚甲基蓝,脱色率达90%。研究探讨了降解亚甲基蓝时H 2O2以及pH值的影响。亚甲基蓝光催化降解氧化反应符合一级动力学规律,表观速率常数为0.5689min-1。Methylene blue was degradated by photocatalytic reaction of Fe3+ /Fe2+ system using Nafion cation-exchange membrane embedded by Fe2+, with decolorization rate up to 90%. The influence of H2O2 and pH was discussed. The photocatalytic degradation of methylene blue solution meets the first-order kinetic law, and the apparent rate constant was 0.5689min-1.

关 键 词：NAFION膜 羟基自由基 光催化降解 亚甲基蓝 

分 类 号：X132[环境科学与工程—环境科学]