TiO_2光催化氧化有机物的研究现状及展望  

Current Status of Research and Prospect on Photocatalytic Oxidation of Organic Pollutants

作　　者：黄琮[1] 王良焱[1] 徐悦华[2] 李新军[1] 郑少健[1] 冯满枝[1] 张琦[1] 杨宝山[1] 

机构地区：[1]中国科学院广州能源研究所,广东广州510070 [2]华南农业大学,广东广州510642

出　　处：《化学世界》2002年第9期494-498,共5页Chemical World

摘　　要：论述了半导体光催化反应机理 ,从晶相组成、晶粒尺寸、热处理温度及气氛、表面羟基、表面结构等方面介绍了对催化剂活性的影响 ,探讨了反应物、氧气、p H值、温度、氧化剂、阴离子、光及光强等在光催化氧化降解过程中的作用 。The mechanism of semiconductor photocatalysis is described. The factors affecting the photocatalytic activity, such as crystal phase, crystal grain size, thermal treatment temperature and atomosphere, surface hydroxyl groups and surface structure, are introduced. The influence of reactant and oxygen concentration, pH value, reaction temperature, type of oxidant and anion, type of light irradiation and its intensity on degradation efficiency is discussed. The future application of photocatalysis is prospected.

关 键 词：光催化氧化 光催化剂 有机污染物 TIO2 二氧化钛 废水处理 

分 类 号：X703.1[环境科学与工程—环境工程] O643.32[理学—物理化学]