溶胶-凝胶法制备纳米TiO_2薄膜的研究  

The study of nano-TiO_2 thin film derived by sol-gel process

作　　者：梁亚红[1] 竹涛[1] 马广大[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055

出　　处：《西安建筑科技大学学报（自然科学版）》2006年第6期799-803,共5页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：陕西省教育厅专项基金项目(99JK206);陕西省自然科学研究计划项目(99C04)

摘　　要：采用溶胶-凝胶方法制备纳米TiO2薄膜,以钛醇盐为前驱物,不同的螯合剂、溶剂和催化剂为原料,通过改变原料配比及实验条件对纳米TiO2薄膜的制备过程的影响进行探讨,从而取得制备纳米TiO2薄膜的最佳原料配比、工艺过程和控制条件.实验结果表明,当去离子水与钛醇盐摩尔比为2.5,乙醇与钛醇盐摩尔比为18,螯合剂与钛醇盐摩尔比为1.2,pH根据需要取3-5,水解温度25-35℃,热处理温度450℃,能够得到稳定的溶胶镀膜.Using Ti（OBu）4 asprecursor, and different complexation, solvent and catalyst as raw material, TiO2 films were prepared by sol-gel mathod. The influence of changing the rates of raw materials＇and experimental conditions were explored and researched on preparing TiO2 thin film. Then the optimum raw materials rates, process and contolled conditions of nano-TiO2 thin film were got. If the molar ratio of H2O and Ti（OBu）4 equals to 2.5; the molar ratio of Eth and Ti（OBu） ; to 18 ; molar ratio of complexation and Ti（OBu） 4 to 1.2 ; pH stays between 3- 5 ; hydrolysable temperature between 25-35℃ ;and the heat treatment temperature arrives at 450℃ ,sol film will get better stablilization.

关 键 词：溶胶-凝胶法 纳米TIO2薄膜 螯合剂 催化剂 

分 类 号：TS195.58[轻工技术与工程—纺织化学与染整工程]