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1. (WO2018101044) CRYSTALLIZED TITANIUM DIOXIDE PRODUCTION METHOD, AND TITANIUM DIOXIDE PRECURSOR, AND PRODUCTION METHOD THEREFOR

Pub. No.:    WO/2018/101044    International Application No.:    PCT/JP2017/041141
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Thu Nov 16 00:59:59 CET 2017
IPC: C01G 23/053
B01J 21/06
B01J 23/755
B01J 35/02
C01G 53/00
Applicants: NATIONAL UNIVERSITY CORPORATION YAMAGATA UNIVERSITY
国立大学法人山形大学
Inventors: KAWAI Takahiro
川井 貴裕
ECHIGO Noriyuki
越後 法之
OUCHI Sayaka
大内 紗八香
Title: CRYSTALLIZED TITANIUM DIOXIDE PRODUCTION METHOD, AND TITANIUM DIOXIDE PRECURSOR, AND PRODUCTION METHOD THEREFOR
Abstract:
Provided is a method for producing a crystallized titanium dioxide having high photoactivity and adsorption capacity that outperforms those of the titanium dioxide photocatalysts obtained by conventional methods. This crystallized titanium dioxide production method comprises: a step for obtaining a titanium dioxide precursor by adding an aqueous solution of a chloride of an alkaline metal or a chloride of a transition metal to an alcohol solution of titanium alkoxide; a step for obtaining a powder of the precursor by drying the titanium dioxide precursor; and a step for obtaining a crystallized titanium dioxide by heating and crystallizing the precursor powder.