Title:
酸化チタンを含有する光触媒、その製造方法及び使用
Document Type and Number:
Japanese Patent JP4436910
Kind Code:
B2
Abstract:
The invention relates to a photocatalyst containing titanium dioxide, to a method for using it and to its application. A sulphurous titanium dioxide hydrate precipitate is precipitated from an acid titanium oxysulphate solution at a temperature below the boiling point of the solution, e.g. in the range from 70 to 100° C., using crystal nuclei and without addition of base. The precipitate is separated, washed and calcinated. The photocatalytic titanium dioxide thus obtained has a specific area in the range from 100 to 250 m2/g and a 0.3 to 5% sulphur concentration. Catalytic activity has been confirmed in asetal dehyde decomposition and in anionic (SNC-)2 radical formation.
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Inventors:
Calvinen, Seira
Ramin Maki, Ralph-Johann
Ramin Maki, Ralph-Johann
Application Number:
JP2003580218A
Publication Date:
March 24, 2010
Filing Date:
April 01, 2003
Export Citation:
Assignee:
Chemira Pigments Osake Yukiture
International Classes:
B01J35/02; B01J21/06; B01J27/053; B01J35/00; B01J37/03; C01G23/053; C09C1/36
Domestic Patent References:
| JP48022914B1 | ||||
| JP10230169A | ||||
| JP11255514A | ||||
| JP9000942A | ||||
| JP63091140A |
Other References:
S. Yamazaki et al,Effect of sulfate ions for sol-gel synthesis of titania photocatalyst,Applied Catalysis A: General,Elsevier,2001年 3月 9日,Vol.210, Issues 1-2,Pages 97-102
D.S.Muggli et al,Photocatalytic performance of sulfated TiO2 and Degussa P-25 TiO2 during oxidation of organics,Applied Catalysis B: Environmental,Elsevier,2001年 8月 1日,Vol.32, Issue 3,P.181-194
D.S.Muggli et al,Photocatalytic performance of sulfated TiO2 and Degussa P-25 TiO2 during oxidation of organics,Applied Catalysis B: Environmental,Elsevier,2001年 8月 1日,Vol.32, Issue 3,P.181-194
Attorney, Agent or Firm:
Takashima Ichi