%0 Journal Article
%T Preparation of Ultra-fine TiO2 Particles Using Micro-Mixing Precipitation Technology<br>微混合沉淀技术制备纳米TiO2颗粒
%A CHEN Gui-Guang
%A LUO Guang-Sheng
%A YANG Xue-Rui
%A SUN Yi-Wen
%A WANG Jia-Ding
%A <br>陈桂光
%A 骆广生
%A 杨雪瑞
%A 孙怡文
%A 汪家鼎
%J 无机材料学报
%D 2004
%I Science Press
%X A method of micro-mixing-precipitation technology was developed from membrane dispersion technology to prepare ultra-fine TiO2 particles. Titanic sulfate was selected as the dispersed phase, and ammonium acid carbonate as the continuous phase. The influences of the re-actant concentrations and two-phase flow rate were investigated. The crystal structure and crystal dimension of the particles were analyzed by XRD, morphology, particle size and size distribution by TEM. The results showed that the spheric TiO2 nano-particles with small size and narrow size distribution could be prepared with the method. The crystal dimension and the particle size of the Ti02 particles were increased with the increasing of reactant concentrations at first, then decreased. They also were decreased with the increasing of the flow rate of Ti(SO4)2 solution, but increased with the increasing of the flow rate of NH4HCO3 solution.
%K micro-mixing-precipitation
%K TiO2
%K ultra-fine<br>微混合沉淀
%K TiO2
%K 超细
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=16FB56C3E57A57D8&yid=D0E58B75BFD8E51C&vid=2A8D03AD8076A2E3&iid=94C357A881DFC066&sid=4E3541241257D204&eid=9905045FEE51B18F&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=1&reference_num=9