非均相体系中降解对二氯苯的光敏剂筛选  

Selection of Photosensitize for p-Dichlorobenze Photocatalysis Degradation in the Heterogeneous System

作　　者：夏璐[1] 黄明孙[1] 潘孝勋[1] 龚铸[1] 

机构地区：[1]广西民族学院化学与生态工程学院

出　　处：《化工技术与开发》2006年第1期1-3,17,共4页Technology & Development of Chemical Industry

基　　金：国家自然科学基金项目资助(批准号:20367001);广西自然科学基金资助项目(桂科自0447015)

摘　　要：以对二氯苯作为目标模型物,考察了多种光敏剂对模型物的降解情况,优化筛选出光敏剂碱性品红、溴甲酚紫、荧光桃红、甲基橙。通过光敏化剂和二氧化钛协同非均相体系除去水中的对二氯苯,筛选出光敏剂荧光桃红协同效果最佳。曝气对比实验说明了补充溶解氧对敏化氧化是必要的。The photosensitizer-assisted photocatalytic oxidation of organic chlorine compounds had been investigated. Different photosensitizes were applied to degrade p-dichlorobenze in wastewater with granular TiO2 as photocatalyst. The photocatalytic efficiency of p-dichlorobenze degradation increased obviously under the existence of photosensitizer. The efficiency of p-dichlorobenze degradation was up to 94 % in 100 mins. Fluorescein red, fuchsin, bromcresol purple and helianthin B showed different photosensitizer-assisted effects. Fluorescein red was the best photosensitizer for the p-dichlorobenze degradation

关 键 词：对二氯苯 光催化 光敏剂 筛选 

分 类 号：O643[理学—物理化学]