应用化学 ›› 1994, Vol. 0 ›› Issue (5): 36-40.

• 研究论文 • 上一篇    下一篇

单分散二氧化钛超微粒子的制备

刘双怀, 周根陶, 徐菱, 彭定坤   

  1. 中国科学技术大学应用化学系,材料科学与工程系 合肥 230026
  • 收稿日期:1993-10-22 修回日期:1994-06-22 出版日期:1994-10-10 发布日期:1994-10-10
  • 基金资助:
    国家自然科学基金资助课题

Preparation of Monodispersed Ultrafine TiO2

Liu Shuanghuai, Zhou Gentao, Xu Ling, Pen Dingkun   

  1. Department of Applied Chemistry, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026
  • Received:1993-10-22 Revised:1994-06-22 Published:1994-10-10 Online:1994-10-10

摘要: 以四丁氧基钛为原料,采用溶胶-凝胶法制备了超微二氧化钛粉末。改变热处理气氛、升温速率、水与四丁氧基钛的摩尔比以及溶剂,分别得到7nm球形单相锐钛矿以及四方形(40nm×10nm)、球形(44nm)的主相金红石超微粒子。

关键词: 二氧化钛, 超微粒子, 制备, 溶胶-凝胶法

Abstract: The monodispersed ultrafine TiO2 was prepared by the sol-gel method from Ti(OC4H9)4 in C6H6,CCl4 and C2H5OC2H5 respectively.The influences of heat treatment,molar ratio of water to Ti(OC4H9)4,and kinds of solvents have been examined.The spherial monodispersed anatase particles of 7nm and ultrafine tetragonal (40nm?10nm) and spherial (44nm) rutile were obtained.

Key words: titanium oxide, ultrafine particle, preparation, sol-gel method