WO2002024333A1 - Member having photocatalyst functionality - Google Patents

Member having photocatalyst functionality Download PDF

Info

Publication number
WO2002024333A1
WO2002024333A1 PCT/JP2001/008276 JP0108276W WO0224333A1 WO 2002024333 A1 WO2002024333 A1 WO 2002024333A1 JP 0108276 W JP0108276 W JP 0108276W WO 0224333 A1 WO0224333 A1 WO 0224333A1
Authority
WO
WIPO (PCT)
Prior art keywords
photocatalyst
functionality
potential
member
titanium oxide
Prior art date
Application number
PCT/JP2001/008276
Other languages
French (fr)
Inventor
Masahiro Miyauchi
Mitsuhide Shimohigoshi
Kazuhito Hashimoto
Toshiya Watanabe
Original Assignee
Toto Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2000-288275 priority Critical
Priority to JP2000288275 priority
Priority to JP2000-302278 priority
Priority to JP2000302278 priority
Priority to JP2001-85871 priority
Priority to JP2001085871 priority
Application filed by Toto Ltd. filed Critical Toto Ltd.
Publication of WO2002024333A1 publication Critical patent/WO2002024333A1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/002Catalysts characterised by their physical properties
    • B01J35/004Photocatalysts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/002Catalysts characterised by their physical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/024Multiple impregnation or coating
    • B01J37/0244Coatings comprising several layers

Abstract

A member which comprises a substrate and, formed on the surface of the substrate, an intermediate layer comprising a material having a photocatalyst functionality other than titanium oxide and, joined onto the surface of the intermediate layer, a surface layer comprising titanium oxide having photocatalyst functionality, wherein the material having photocatalyst functionality other than titanium oxide has a potential of the lower end of a conduction band which is positively higher than 0 V in terms of the potential to a standard hydrogen electrode at pH 7 and a potential of the upper end of a valence band which is positively higher than +2.7 V in terms of the potential to a standard hydrogen electrode at pH 7; and a method for producing the member. The member exhibits excellent hydrophilicity being sufficient to have anti-fogging and anti-staining properties, even with a reduced amount of a photocatalyst or by weak light.
PCT/JP2001/008276 2000-09-22 2001-09-21 Member having photocatalyst functionality WO2002024333A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2000-288275 2000-09-22
JP2000288275 2000-09-22
JP2000-302278 2000-10-02
JP2000302278 2000-10-02
JP2001085871 2001-03-23
JP2001-85871 2001-03-23

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002528393A JP4919141B2 (en) 2000-09-22 2001-09-21 Photocatalytic member and method for producing the same
AU8810801A AU8810801A (en) 2000-09-22 2001-09-21 Member having photocatalyst functionality

Publications (1)

Publication Number Publication Date
WO2002024333A1 true WO2002024333A1 (en) 2002-03-28

Family

ID=27344710

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2001/008276 WO2002024333A1 (en) 2000-09-22 2001-09-21 Member having photocatalyst functionality

Country Status (3)

Country Link
JP (1) JP4919141B2 (en)
AU (1) AU8810801A (en)
WO (1) WO2002024333A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004094044A1 (en) * 2003-04-23 2004-11-04 National Institute Of Advanced Industrial Science And Technology Three-dimensional fine cell structured photocatalyst filter responding to visible light and method for production thereof, and clarification device
JP2007252974A (en) * 2006-03-20 2007-10-04 Sharp Corp Photocatalyst film, semiconductive photo-electrode for water decomposition and water decomposition device using the same
JP2007301988A (en) * 2006-04-11 2007-11-22 Nippon Sheet Glass Co Ltd Photocatalyst coating having improved low maintenance characteristic
US7910220B2 (en) 2007-07-25 2011-03-22 Alcoa Inc. Surfaces and coatings for the removal of carbon dioxide
US8017247B2 (en) 2007-03-30 2011-09-13 Alcoa Inc. Self cleaning aluminum alloy substrates
JP2012091143A (en) * 2010-10-28 2012-05-17 National Institute Of Advanced Industrial Science & Technology Environment-resistant visible light responsive photocatalyst film structure and photocatalyst promoter
JP2012120967A (en) * 2010-12-07 2012-06-28 Nissan Motor Co Ltd Visible light-responsive photocatalyst, hydrophilic member including the same, and method for producing the same
US8617665B2 (en) 2009-08-03 2013-12-31 Alcoa, Inc. Self-cleaning substrates and methods for making the same
JP2014188416A (en) * 2013-03-26 2014-10-06 Panahome Corp Photocatalyst body
US9738967B2 (en) 2006-07-12 2017-08-22 Cardinal Cg Company Sputtering apparatus including target mounting and control

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1095635A (en) * 1996-09-20 1998-04-14 Toto Ltd Formation of photocatalytic hydrophobic member and photocatalytic hydrophobic member
JPH10147770A (en) * 1996-11-20 1998-06-02 Toto Ltd Photocatalyst hydrophilic member and its production
JP2001046881A (en) * 1999-08-05 2001-02-20 Nippon Sheet Glass Co Ltd Article having photocatalytic activity
JP2001079978A (en) * 1999-09-14 2001-03-27 Toto Ltd Hydrophilic member
JP2001121003A (en) * 1999-10-29 2001-05-08 Nippon Sheet Glass Co Ltd Article having photocatalytic activity
JP2001152130A (en) * 1999-11-25 2001-06-05 Toto Ltd Photocatalytically hydrophilizable member and its manufacturing method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1095635A (en) * 1996-09-20 1998-04-14 Toto Ltd Formation of photocatalytic hydrophobic member and photocatalytic hydrophobic member
JPH10147770A (en) * 1996-11-20 1998-06-02 Toto Ltd Photocatalyst hydrophilic member and its production
JP2001046881A (en) * 1999-08-05 2001-02-20 Nippon Sheet Glass Co Ltd Article having photocatalytic activity
JP2001079978A (en) * 1999-09-14 2001-03-27 Toto Ltd Hydrophilic member
JP2001121003A (en) * 1999-10-29 2001-05-08 Nippon Sheet Glass Co Ltd Article having photocatalytic activity
JP2001152130A (en) * 1999-11-25 2001-06-05 Toto Ltd Photocatalytically hydrophilizable member and its manufacturing method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
KOUYOU SANO ET AL.: "RF magnetron sputter-hou ni yoru TiO2/ZnO sekisou hikari-shokubai hakumaku no teion no gousei, dai 7 kai symposium; hikari-shokubai hannou no saikin no tenkai", HIKARI-KINOU ZAIRYOU KENKYUUKAI, 9 November 2000 (2000-11-09), pages 116 - 117, XP002949777 *
MASAHIRO MIYAUCHI ET AL.: "Sekisou-gata TiO2/WO3 fukugou hakumaku no hikari-shokubai tokusei, Dai 7, symposium; hikari-shokubai hannou no saikin no tenkai", HIKARI-KINOU ZAIRYOU KENKYUUKAI, vol. 12, no. 3, 9 November 2000 (2000-11-09), pages 88 - 89, XP002949776 *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7704913B2 (en) 2003-04-23 2010-04-27 National Institute Of Advanced Industrial Science And Technology Visible-light-responsive three-dimensional fine cell-structured photocatalytic filter, its manufacturing method and purifier device
JP4803653B2 (en) * 2003-04-23 2011-10-26 独立行政法人産業技術総合研究所 Visible light responsive type three-dimensional fine cell structure photocatalytic filter, manufacturing method thereof, and purification apparatus
JP2011000589A (en) * 2003-04-23 2011-01-06 National Institute Of Advanced Industrial Science & Technology Three-dimensional fine cell structured photocatalyst filter responding to visible light and method for production thereof, and clarification device
WO2004094044A1 (en) * 2003-04-23 2004-11-04 National Institute Of Advanced Industrial Science And Technology Three-dimensional fine cell structured photocatalyst filter responding to visible light and method for production thereof, and clarification device
JP2007252974A (en) * 2006-03-20 2007-10-04 Sharp Corp Photocatalyst film, semiconductive photo-electrode for water decomposition and water decomposition device using the same
JP2007301988A (en) * 2006-04-11 2007-11-22 Nippon Sheet Glass Co Ltd Photocatalyst coating having improved low maintenance characteristic
KR101431230B1 (en) * 2006-04-11 2014-08-18 카디날 씨지 컴퍼니 Photocatalytic coatings having improved low-maintenance properties
US9738967B2 (en) 2006-07-12 2017-08-22 Cardinal Cg Company Sputtering apparatus including target mounting and control
US8017247B2 (en) 2007-03-30 2011-09-13 Alcoa Inc. Self cleaning aluminum alloy substrates
US7910220B2 (en) 2007-07-25 2011-03-22 Alcoa Inc. Surfaces and coatings for the removal of carbon dioxide
US8435446B2 (en) 2007-07-25 2013-05-07 Alcoa Inc. Surfaces and coatings for the removal of carbon dioxide
US8617665B2 (en) 2009-08-03 2013-12-31 Alcoa, Inc. Self-cleaning substrates and methods for making the same
JP2012091143A (en) * 2010-10-28 2012-05-17 National Institute Of Advanced Industrial Science & Technology Environment-resistant visible light responsive photocatalyst film structure and photocatalyst promoter
JP2012120967A (en) * 2010-12-07 2012-06-28 Nissan Motor Co Ltd Visible light-responsive photocatalyst, hydrophilic member including the same, and method for producing the same
JP2014188416A (en) * 2013-03-26 2014-10-06 Panahome Corp Photocatalyst body

Also Published As

Publication number Publication date
JPWO2002024333A1 (en) 2004-01-29
AU8810801A (en) 2002-04-02
JP4919141B2 (en) 2012-04-18

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