Title:
PHOTOCATALYST FIBERS AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2011/122234
Kind Code:
A1
Abstract:
Provided are high-activity photocatalyst fibers and a method for producing the same. The photocatalyst fibers are silica group compound oxide fibers formed from a compound oxide phase of an oxide phase (first phase) that is primarily a silica component and a metal oxide phase (second phase) that is a metal other than silica, wherein the ratio of at least one or more metal elements present in the metal oxide that forms the metal oxide phase (second phase) increases obliquely along the fiber surface, the metal that forms the metal oxide phase (second phase) is in the form of particles, mesopores having an average pore diameter of 2 to 30 nm are formed between the particles, from the fiber surface toward the inside of the fiber, and platinum (Pt) particles having an average particle size of 0.5 to 10 nm are supported inside the mesopores.
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Inventors:
SUYAMA KOUICHIROU (JP)
YAMAOKA HIROYUKI (JP)
HARADA YOSHIKATSU (JP)
FUJII TERUAKI (JP)
OTANI SHINICHIROU (JP)
SUHARA SADAYOSHI (JP)
YAMAOKA HIROYUKI (JP)
HARADA YOSHIKATSU (JP)
FUJII TERUAKI (JP)
OTANI SHINICHIROU (JP)
SUHARA SADAYOSHI (JP)
Application Number:
PCT/JP2011/054949
Publication Date:
October 06, 2011
Filing Date:
March 03, 2011
Export Citation:
Assignee:
UBE INDUSTRIES (JP)
SUYAMA KOUICHIROU (JP)
YAMAOKA HIROYUKI (JP)
HARADA YOSHIKATSU (JP)
FUJII TERUAKI (JP)
OTANI SHINICHIROU (JP)
SUHARA SADAYOSHI (JP)
SUYAMA KOUICHIROU (JP)
YAMAOKA HIROYUKI (JP)
HARADA YOSHIKATSU (JP)
FUJII TERUAKI (JP)
OTANI SHINICHIROU (JP)
SUHARA SADAYOSHI (JP)
International Classes:
B01J35/02; B01J23/42; B01J35/06; B01J37/00; D06M11/28
Domestic Patent References:
| WO2008114597A1 | 2008-09-25 |
Foreign References:
| JP2002066333A | 2002-03-05 | |||
| JP2003328236A | 2003-11-19 | |||
| JP2008053686W | 2008-02-29 | |||
| JPS5674126A | 1981-06-19 |
Other References:
A. SCLAFANI ET AL.: "Influence of platinum on catalytic activity of polycrystalline W03 employed for phenol photodegradation in aqueous suspension", SOLAR ENERGY MATERIALS AND SOLAR CELLS, vol. 51, 1998, pages 203 - 219, XP004111825
Attorney, Agent or Firm:
ITAMI, Masaru et al. (JP)
Itami 勝 (JP)
Itami 勝 (JP)
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Claims: