人工晶体学报2012，Vol.41Issue(2)：485-490,6.
高纯TiO2超微粉体的制备
Preparation of High-purity TiO2 Ultra-fine Powders
摘要
Abstract
The high-purity TiO2 ultra-fine powders were prepared by TiCl4 hydrolysis using low-cost TiCl4 as raw materials, liquid olefin as purifier and NH3·H2O as nucleation agent. The phase composition of the sample was analyzed by XRF; The phase transformation and morphology character of the powders were studied by XRD and SEM during preparation of TiO2 particles. The results indicated that TiCl4 was purified by liquid olefin in order to wipe off vanadium, in the meantime removed iron by the method of rectification, after which TiCl4 was forced to proceed a hydrolysis reaction. The powders whose purity is 99.9952% are approximately 650 nm spherical particles with good and crystalline phase is rutile under the condition of n (Ti4 +) = 0.65 mol/L, pH = 7, treated at 60℃ for 2 h and calcined at 800 ℃ for 2 h.关键词
TiO2/物相变化/水解法/金红石相Key words
TiO2/phase transformation/hydrolysis method/rutile phase分类
通用工业技术引用本文复制引用
吴南,马伟民,毕孝国,管仁国,朱红艳,滕飞..高纯TiO2超微粉体的制备[J].人工晶体学报,2012,41(2):485-490,6.基金项目
辽宁省教育厅重点实验室项目(20008S181) （20008S181）
沈阳市科技攻关计划项目(F10-053-2-00) （F10-053-2-00）
