Title:
PHOTOCATALYST AND PROCESS FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2010/071127
Kind Code:
A1
Abstract:
Disclosed is a photocatalyst which comprises: a member comprising an oxide of which the level of an electron band and the level of a conductive band are higher than the level of a valence band and the level of a conductive band of tungsten oxide, respectively, and which has a band gap lower than 2.8 eV; a transparent and porous member which comprises a substance capable of promoting charge transfer and which is formed on the oxide-containing member; and a porous member which comprises tungsten oxide and is formed on the surface of the transparent and porous member. It becomes possible to provide a novel tungsten oxide photocatalyst which enables the rapid progress of electron transfer and can exhibit a high photocatalytic activity upon the irradiation with visible light, and is extremely useful as a building member, an automotive member or a member for use in the purification of air or water.
Inventors:
MIYAUCHI MASAHIRO (JP)
LIU ZHIFU (JP)
LIU ZHIFU (JP)
Application Number:
PCT/JP2009/070895
Publication Date:
June 24, 2010
Filing Date:
December 15, 2009
Export Citation:
Assignee:
NAT INST OF ADVANCED IND SCIEN (JP)
MIYAUCHI MASAHIRO (JP)
LIU ZHIFU (JP)
MIYAUCHI MASAHIRO (JP)
LIU ZHIFU (JP)
International Classes:
B01J35/02; B01J23/85
Foreign References:
| JPH10309777A | 1998-11-24 |
Other References:
ARAI, T. ET AL.: "Efficient Complete Oxidation of Acetaldehyde into C02 over CuBi204/W03 Composite Photocatalyst under Visible and UV Light Irradiation", J. PHYS. CHEM. C, vol. 111, no. 21, 2007, pages 7574 - 7577
NOBUYOSHI TAKABATAKE ET AL.: "Sol-Gel Process ni yoru Kashiko Otogata Ti02/V205/ITO Sekisomaku no Chosei to sono Hikari Shokubai Seino", JOURNAL OF THE JAPAN SOCIETY OF POWDER AND POWDER METALLURGY, vol. 51, no. 4, 2004, pages 226 - 229
NOBUYOSHI TAKABATAKE ET AL.: "Sol-Gel Process ni yoru Kashiko Otogata Ti02/V205/ITO Sekisomaku no Chosei to sono Hikari Shokubai Seino", JOURNAL OF THE JAPAN SOCIETY OF POWDER AND POWDER METALLURGY, vol. 51, no. 4, 2004, pages 226 - 229
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