Yang Jun¹‚Xu Dingkan²‚Zhang Qichao²

（1∙Wuhan Institute of Chemical Technology‚Hubei Wuhan430073；

2∙Chongqing University‚Chongqing400044China）

Abstract

It is reserched on the best technical conditions of

preparation of fine powder TiO2 with sol－gel method∙T he results show that the temperature and pH of solution much affect the forming and stability of sol∙T he surface properties of fine powder TiO2 are also studied∙From SEM analysis and the determination of pore distribution‚the fine particle is spherical and its diameter is mainly 70～90°A∙

Keywords：fine powder titanium oxide；sol － gel method；preparation process

DOI：10.13732/j.issn.1008-5548.1999.05.009