Photocatalyst of TiO2 Ultrafine Powders Prepared by Thermohydrolysis of TiOSO4 Solution
DAI Zhi-ming
CHEN Ai-Ping
YANG Yang
GU Hong-chen
GU Ming-yuan
Abstract：The photocatalyst of TiO2 ultrafine powders were prepared by the means of thermohydrolysis of the TiOSO4 solution．The influences of synthetic conditions for TiO2 were investigated．The behaviors of TiO2 photocatalyst was characterized by X－ray diffraction，TEM，BET mothods and TG－DTG－DTA methods．The product of photocatalyst which is heated at 160℃ for four hours can be obtained，with a primary particle diameter of 20nm and a specific surface area of 170m2／g． The photocatalyst particles were spherical and porous，with anatase crystal TiO2 and amorphous structure．The catalyst activity is as good as Degussa P25 TiO2．
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Publication Date：2001-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 14-17 )