Title:
PHOTOCATALYTIC FUNCTIONAL MATERIAL AND METHOD OF PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/1996/014932
Kind Code:
A1
Abstract:
A photocatalytic functional material having an excellent photocatalytic activity even by a low temperature heat treatment and having a high mechanical strength of the surface. The functional material comprises a photocatalyst, an electron capturing metal and a surface layer (photocatalytic functional layer) containing a matrix having resistance to photodegradation. Though the major proportion of the photocatalyst (TiO2 particles, etc.) in the photocatalytic functional layer are covered with the photodegradation resistant matrix (thermosetting resin, etc.), the electron capturing metal effectively captures the electrons generated by the photocatalytic reaction, retains the holes and generates the active oxygen seed. Therefore, the photocatalytic function such as deodorizing and antimicrobial effects can be fully exhibited.
Inventors:
HAYAKAWA MAKOTO (JP)
CHIKUNI MAKOTO (JP)
WATANABE TOSHIYA (JP)
CHIKUNI MAKOTO (JP)
WATANABE TOSHIYA (JP)
Application Number:
PCT/JP1995/002340
Publication Date:
May 23, 1996
Filing Date:
November 16, 1995
Export Citation:
Assignee:
TOTO LTD (JP)
HAYAKAWA MAKOTO (JP)
CHIKUNI MAKOTO (JP)
WATANABE TOSHIYA (JP)
HAYAKAWA MAKOTO (JP)
CHIKUNI MAKOTO (JP)
WATANABE TOSHIYA (JP)
International Classes:
B01J35/00; (IPC1-7): B01J35/02
Foreign References:
| JPH01135842A | 1989-05-29 | |||
| JPH0549861A | 1993-03-02 | |||
| JPH05337337A | 1993-12-21 | |||
| JPH081010A | 1996-01-09 |
Other References:
See also references of EP 0792687A4
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