COMPOSITE OXIDE TYPE TITANIA PHOTOCATALYST AND USE THEREOF

WIPO Patent Application WO/2005/044447

A1

[PROBLEMS] To provide a photocatalyst capable of exerting satisfactory photocatalytic performance, which even when added to a resin or paint, would not cause any color change or deterioration of resin, etc. [MEANS FOR SOLVING PROBLEMS] There is provided a titania photocatalyst comprising titanium containing 0.1 to 25 mol% of niobium. The titania photocatalyst has a pore volume of 0.05 to 10 cm³/g and a crystallite diameter of 5 to 1000 nm. The titania photocatalyst contains a brookite crystal phase. There is further provided a titania photocatalyst comprising titanium atoms containing 0.01 to 20 mol% of a trivalent atom, the trivalent atom being at least one of aluminum, cerium and iron. Still further, there is provided a product comprising the above titania photocatalyst.

TAKAGI OSAMU (JP)

PCT/JP2004/015945

May 19, 2005

October 27, 2004

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TOAGOSEI CO LTD (JP)
TAKAGI OSAMU (JP)

B01J23/20; B01J35/00; B01J21/06; (IPC1-7): B01J35/02; B01J23/20; C09D201/00

JPS5745345A	1982-03-15
JPH09267037A	1997-10-14
JP2000169147A	2000-06-20
JP2004196641A	2004-07-15
JP2004195439A	2004-07-15

SABATE J. ET AL.: "Nature and properties of pure and Nb-doped TiO2 ceramic membranes affecting the photocatalytic degradation of 3-chlorosalicylic acid as a model of halogenated organic compounds", JOURNAL OF CATALYSIS, vol. 134, 1992, pages 36 - 46, XP002989316
UEDA H. ET AL.: "Kashiko ni oto suru hikari shokubai.antei radical-gata muki kobunshi zairyo", JOURNAL OF THE CHEMICAL SOCIETY OF JAPAN, no. 10, 1992, pages 1044 - 1051, XP002989317

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