不同水解抑制剂制备纳米TiO2薄膜及其性能  

Preparation and Performance of Nano-TiO_2 Films under Different Complexmant Conditions

作　　者：郝丽媛[1] 周炳卿[1] 韩兵[1] 那日苏[1] 王丽娟[1] 

机构地区：[1]内蒙古师范大学物理与电子信息学院,功能材料物理与化学自治区重点实验室,内蒙古呼和浩特010022

出　　处：《材料科学与工程学报》2009年第6期934-936,948,共4页Journal of Materials Science and Engineering

基　　金：国家自然科学基金资助项目(50662003)

摘　　要：本文以钛酸丁酯、三乙醇胺、冰醋酸、盐酸等为主要原料,采用溶胶-凝胶(sol-gel)法和旋转涂膜工艺在玻璃衬底上制备均匀、透明的纳米TiO2薄膜。利用X射线衍射(XRD)、紫外-可见光谱(UV/vis)和原子力显微镜(AFM)对纳米TiO2进行表征,结果显示:经500℃退火后,三乙醇胺、冰醋酸作水解抑制剂制备的TiO2粉体为锐钛矿晶相,而盐酸作水解抑制剂制备的TiO2粉体为锐钛矿、金红石和板钛矿的混合晶相;纳米TiO2薄膜存在光催化活性和吸收带边不同程度的"蓝移",且用三乙醇胺制备的TiO2薄膜的"蓝移"最大,光催化活性最强。By using tetrabutyl titanate,triethanolamine,acetic acid and muriatic acid as raw materials,the uniform transparent nano-TiO2 thin films were prepared on glass substrate by sol-gel method.The nanostructured TiO2 films were characterized by X-ray diffractometry（XRD）,ultraviolet-visible（UV-Vis） spectroscopy and atomic force microscopy（AFM）.The results showed that after annealing at 500℃,the structures of TiO2 powers are anatase phase by using triethanolamine and acetic acid as raw materials,but anatase, rutile and brookit phases by using muriatic acid. The nano-TiO2 thin films have photocatalytic activity and some ＇ blue shift＇ for the band gap energy, and TiO2 thin films prepared by triethanolamine have the biggest ＇blue shift＇ and photocatalytie activity.

关 键 词：纳米TIO2薄膜 溶胶-凝胶法 光催化活性 

分 类 号：O612.4[理学—无机化学]