Title:
VISIBLE LIGHT-RESPONSIVE PHOTOCATALYTIC NANOPARTICLE DISPERSION LIQUID, METHOD FOR PRODUCING SAME, AND MEMBER HAVING PHOTOCATALYTIC THIN FILM ON SURFACE
Document Type and Number:
WIPO Patent Application WO/2014/045861
Kind Code:
A1
Abstract:
It is possible to obtain a visible light-responsive photocatalytic nanoparticle dispersion liquid containing copper-containing titanium oxide nanoparticles by subjecting an aqueous peroxotitanic acid solution containing a copper compound to hydrothermal reaction for crystallizing the aqueous solution by means of heat under high pressure. The visible light-responsive photocatalytic nanoparticle dispersion liquid thus obtained exhibits excellent dispersion stability of titanium oxide nanoparticles within a water-based dispersion medium even when left in a cold and dark indoor area for a long period of time, expresses photocatalytic activity even in visible light (400 to 800 nm) alone, and can easily create a photocatalytic thin film which is extremely transparent and exhibits excellent durability, and in which the state of copper coordination when exposed to heat or ultraviolet rays is stable and cannot be easily modified.
Inventors:
FURUDATE MANABU (JP)
INOUE TOMOHIRO (JP)
EGUCHI YOSHITSUGU (JP)
KOBAYASHI TAKASHI (JP)
INOUE TOMOHIRO (JP)
EGUCHI YOSHITSUGU (JP)
KOBAYASHI TAKASHI (JP)
Application Number:
PCT/JP2013/073635
Publication Date:
March 27, 2014
Filing Date:
September 03, 2013
Export Citation:
Assignee:
SHINETSU CHEMICAL CO (JP)
International Classes:
B01J35/02; B01D53/86; B01J23/847; B01J37/04; C09D1/00; C09D5/00; C09D7/61; C09D183/10; C09D201/00
Domestic Patent References:
| WO2011145385A1 | 2011-11-24 | |||
| WO2004041723A1 | 2004-05-21 | |||
| WO2013073320A1 | 2013-05-23 |
Foreign References:
| JP2002177775A | 2002-06-25 | |||
| JP2011136879A | 2011-07-14 | |||
| JP2011136297A | 2011-07-14 |
Attorney, Agent or Firm:
KOJIMA Takashi et al. (JP)
Takashi Kojima (JP)
Takashi Kojima (JP)
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