纳米TiO_2/SiO_2复合催化剂的制备与表征  

Preparation and Characterization of Nano TiO_2/SiO_2 Catalyst

作　　者：付文[1] 刘安华[2] 张利利[2] 

机构地区：[1]茂名学院化工与环境工程学院,广东茂名525000 [2]华南理工大学材料学院,广东广州510640

出　　处：《茂名学院学报》2009年第1期9-12,共4页Journal of Maoming College

基　　金：国家自然科学基金资助项目(No.29974009)

摘　　要：以钛酸四丁酯、正硅酸乙酯为前驱体,冰醋酸为水解抑制剂,用溶胶-凝胶法制备了纳米TiO2/SiO2复合物。通过X-射线衍射、红外光谱、比表面积仪等测试手段表明:纳米TiO2/SiO2粒子焙烧后主要以锐钛型存在,有Ti-O-Si键的产生,复合粒子的比表面积达到389 m2/g。Nano TiO2/SiO2 was prepared by means of sol- gel using tetraethylorthosilieate and tetrabutylorthotitanate as precursors and glacial acetic acid as depressor. XRD,FT - IR, BET analysis showed that the crystalline phase was anatase, the bonds of Ti - O - Si were formed, and the specific surface area of catalyst was 389 m^2/g.

关 键 词：纳米TiO2/SiO2 溶胶-凝胶法 催化剂 

分 类 号：X703.1[环境科学与工程—环境工程]