ARTICLE COATED WITH PHOTOCATALYST FILM, METHOD FOR PREPARING THE ARTICLE AND SPUTTERING TARGET FOR USE IN COATING WITH THE FILM

Title:

ARTICLE COATED WITH PHOTOCATALYST FILM, METHOD FOR PREPARING THE ARTICLE AND SPUTTERING TARGET FOR USE IN COATING WITH THE FILM

Document Type and Number:

WIPO Patent Application WO/2001/046488

Kind Code:

A1

Abstract:

An article having a substrate and a photocatalyst coating film formed thereon by the sputtering method, characterized in that the photocatalyst coating film comprises a titanium oxide as a main component and at least one metal having a sputtering rate for Ar which is 0.9 to 2.7 times that of Ti, preferably at least one metal selected from the group consisting of Fe, V, Mo, Nb, Al and Cr in an amount of 0.01 to 10 wt % in terms of the sum of such metals. The coating film is formed on the substrate by a method using a sputtering target of Ti metal or a Ti suboxide containing the at least one metal in an amount of 0.01 to 10 wt % in terms of the sum of such metals, or a method using two sputtering targets to which reversing voltages are applied in a manner such that the two targets become a positive electrode and a negative electrode alternatively.

Inventors:

ANZAKI TOSHIAKI (JP)
ARAI DAISUKE (JP)
KIJIMA YOSHIFUMI (JP)

Application Number:

PCT/JP2000/009092

Publication Date:

June 28, 2001

Filing Date:

December 21, 2000

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Assignee:

NIPPON SHEET GLASS CO LTD (JP)
ANZAKI TOSHIAKI (JP)
ARAI DAISUKE (JP)
KIJIMA YOSHIFUMI (JP)

International Classes:

B01J23/22; B01J23/28; B01J23/745; B01J23/20; B01J23/847; B01J23/88; B01J35/00; B01J35/02; B01J37/02; B01J37/34; C23C14/06; C23C14/08; C23C14/34; (IPC1-7): C23C14/08; C23C14/34; B01J35/02

Foreign References:

JPH10158814A	1998-06-16
JPH1066878A	1998-03-10
JP2000345320A	2000-12-12
JP2000140636A	2000-05-23

Other References:

ROGER I. BICKLEY ET AL.: "A comparative study of the photocatalytic activities of iron-titanium(IV)oxide photocatalysts prepared by various methods; spray pyrolysis, impregnation and co-precipitation", STUD. SURF. SCI. CATAL., vol. 91, 1995, pages 589 - 596, XP002938944
See also references of EP 1253214A4

Attorney, Agent or Firm:

Koyama, Yuu (Kojimachi Chiyada-ku Tokyo, JP)

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