载银TiO_2及AgCl光催化降解有机污染物的研究现状  

Recent Study of Ag-loaded TiO_2 and AgCl Photo-catalytic Properties on Organic Contamination

作　　者：于洁玫[1] 王西奎[1] 国伟林[1] 王金刚[1] 

机构地区：[1]济南大学化学化工学院,山东济南250022

出　　处：《济南大学学报（自然科学版）》2007年第3期205-209,共5页Journal of University of Jinan(Science and Technology)

基　　金：山东省自然科学基金(Z200B01)

摘　　要：TiO2是一种优良的光催化材料,在TiO2表面负载金属银能显著提高其光催化活性,目前在TiO2表面沉积银的方法主要有溶胶-凝胶法、光化学沉积法、Ag2CO3法、银镜反应法、光催化还原金属离子法等。在对掺银改善纳米二氧化钛光催化性能的研究基础上,人们发现了卤化银作为光催化剂的光催性能。通过比较发现,AgCl在光催化降解水中有机污染物的过程中应该有与TiO2相似的反应机理。TiO2 is a good photo - catalytic material. Loading Ag on the surface of TiO2 will improve its photo - catalytic properties dramatically. The main methods of loading Ag on the surface of TiO2 include the photo - deposition method, the sol - gel technique, the Ag2CO3 method, the silver mirror reaction, the photo - catalytic reduction of metal ions, etc. The photo - character of AgX catalyst is found on the study of Ag/TiO2. It is found that the mechanism of using AgCl as the photo - catalyst to degrade the organic contamination in water is similar to that of TiO2.

关 键 词：光催化技术 载银TIO2 AGCL 

分 类 号：TQ571[化学工程—精细化工]