纳米TiO_2薄膜的热致亲水性与光致亲水性机理  

The Mechanism of Hydrophilic Surface of TiO_2 Thin Films Induced by Heat and Light

作　　者：崔晓莉[1] 沈杰[1] 任达森[1] 杨锡良[1] 章壮健[1] 江志裕[2] 

机构地区：[1]复旦大学材料科学系 [2]复旦大学化学系

出　　处：《化学通报》2003年第3期203-206,共4页Chemistry

基　　金：国家自然科学基金资助项目 ( 2 0 0 73 0 11)

摘　　要：应用真空磁控溅射、溶胶 凝胶方法和电沉积方法分别在玻璃和导电玻璃表面制备了纳米TiO2 薄膜。纳米TiO2 薄膜的热致亲水性研究表明 ,这是由于热处理对TiO2 薄膜表面的清洁作用除去了吸附的水和有机污染物而产生的。TiO2 薄膜的光致亲水性可能也源于紫外光照产生的活性粒子对TiO2薄膜的“光清洁作用”TiO 2 thin films were prepared by three different methods including sol-gel, electrodeposition and DC reactive magnetron sputtering methods respectively. It is found that a hydrophilic surface can be obtained through heating the TiO 2 thin films. It is proposed that the hydrophilic surface was resulted from the annealing-induced cleaning effect for TiO 2 thin films. It is also proposed that light-induced hydrophilicity for TiO 2 thin film may be resulted from the light cleaning effect for the surface.

关 键 词：纳米TIO2薄膜 机理 热致亲水性 光致亲水性 二氧化钛 玻璃 

分 类 号：TB43[一般工业技术]