包装学报Issue(3)：6-10,5.
溶胶-凝胶法制备纳米TiO_2先驱体及其晶型演化研究
Nanoscale TiO2 Precursors Preparation via Sol-Gel Method and Their Crystal Phase Evolution
伍小波 1高凌燕 1陈明2
作者信息
- 1. 湖南工业大学先进包装材料与技术湖南省普通高校重点实验室,湖南株洲412007
- 2. 中南大学粉末冶金研究院,湖南长沙410083
- 折叠
摘要
Abstract
TiO2 nanoparticle precursors were prepared by a sol-gel process using Ti(OC4H9)4 as raw material, and also were characterized by IR, XRD, TG-DSC. The results of infrared absorption spestra show that the acetate replaces the OR group and is directly bound to titanium hydrolysis while the pH=3. The alcohol condensation and dehydration condensa- tion of precursors powder happened at 275 ℃, the weightlessness rate was 30%. The anatase to ruby crystal type steering occurred in 450 ℃. In 900 ℃ ruffle content is about 90%, the anatase content is approximately 10%. The grain size is 18 nm in 400 of 2 and 21 nm in 900 ℃. The grain size becomes bigger with increasing temperature.关键词
TiO2/溶胶-凝胶法/钛酸四丁酯Key words
TiO2/sol-gel method/titaniumn-butoxide分类
通用工业技术引用本文复制引用
伍小波,高凌燕,陈明..溶胶-凝胶法制备纳米TiO_2先驱体及其晶型演化研究[J].包装学报,2012,(3):6-10,5.
