Prepn process of mesoporous TiO2 powder as photocatalyst by using polyglycol as additive
Title：
Prepn process of mesoporous TiO2 powder as photocatalyst by using polyglycol as additive
Application Number：
 01131113
Application Date：
 2001/08/31
Announcement Date：
 2002/02/27
Pub. Date：
Publication Number：
 1337425
Announcement Number：
 1164682
Grant Date：
 2004-9-1
Granted Pub. Date：
 2004-9-1
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 B01J 37/08, C08K 3/20, C08L 71/08
Applicant(s)：
 Qinghua Univ.
Inventor(s)：
 Zhu Yongfa, Tan Ruiqin
Key Words：
 Prepn process, mesoporous, TiO2 powder, photocatalyst, polyglycol, additive
Abstract：
 The method for preparing mesopore titanium dioxide powder body photocatalyst by using polyglycol as additive includes the following steps: firstly, using deionized water, titanium sulfate, urea and polyglycol to prepare hydrothermal solution, placing said solution into a pressure still, adding polyglycol whose molecular weight is 200-4000 to make hydrothermal reaction, then water-washing or alcohol-washing the obtained product to remove sulfuric acid radical, drying to obtain precursor powder body sample, breaking said sample and calcining in the air so as to obtain the invented photocatalyst. Its pore size distribution range is 20-200 nanometers, and said catalyst possesses advantages of high photocatalytic efficiency and high activity.
Claim：
Priority：
PCT：
LegalStatus：

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