一种新型纳米TiO_2涂膜及其光催化性能的研究  

Photocatalytic Degradation Properties Studies of A New Nanocrystalline TiO_2 Coating Film

作　　者：吴凤清[1] 阮圣平[2] 李晓平[2] 高伟[1] 徐宝琨[2] 赵慕愚[1] 

机构地区：[1]吉林大学化学系 [2]吉林大学电子工程系,长春130023

出　　处：《高等学校化学学报》2000年第10期1578-1580,共3页Chemical Journal of Chinese Universities

摘　　要：The TiO 2 powder was prepared by a stearic acid gel method. XRD characterization indicated that the crystal form was anatase. The grain size, given out by Sherrer formula, is 19 nm. With polystyrene dissolved in toluene as binder, TiO 2 adhered to the glassfibre substrate. By this method, the powder was immobilized and the crystal form, grain size and photocatalysis activities were well maintained. Photocatalysis degradation properties were investigated by putting the TiO 2 immobilization film in the methyl orange aqueous system. The results indicated that the differences of degradation rate between the TiO 2 immobilization film and powder were not obvious, which made waste water treatment using photocatalysis degradation technique possible in the practical application. [WT5HZ]The TiO 2 powder was prepared by a stearic acid gel method. XRD characterization indicated that the crystal form was anatase. The grain size, given out by Sherrer formula, is 19 nm. With polystyrene dissolved in toluene as binder, TiO 2 adhered to the glassfibre substrate. By this method, the powder was immobilized and the crystal form, grain size and photocatalysis activities were well maintained. Photocatalysis degradation properties were investigated by putting the TiO 2 immobilization film in the methyl orange aqueous system. The results indicated that the differences of degradation rate between the TiO 2 immobilization film and powder were not obvious, which made waste water treatment using photocatalysis degradation technique possible in the practical application. [WT5HZ]

关 键 词：二氧化钛 纳米晶 污水处理 有机物降解 催化性能 

分 类 号：X703.1[环境科学与工程—环境工程] O643.36[理学—物理化学]