Invention Grant
- Patent Title: Visible-light-responsive photocatalyst with environmental resistance
- Patent Title (中): 可见光响应光催化剂具有环保性
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Application No.: US13985372Application Date: 2012-02-15
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Publication No.: US09533284B2Publication Date: 2017-01-03
- Inventor: Kazuhiro Sayama , Yoshinari Konishi
- Applicant: Kazuhiro Sayama , Yoshinari Konishi
- Applicant Address: JP Tokyo
- Assignee: National Institute of Advanced Industrial Science and Technology
- Current Assignee: National Institute of Advanced Industrial Science and Technology
- Current Assignee Address: JP Tokyo
- Agency: Carmody Torrance Sandak & Hennessey LLP
- Priority: JP2011-030782 20110216; JP2011-194770 20110907
- International Application: PCT/JP2012/053538 WO 20120215
- International Announcement: WO2012/111709 WO 20120823
- Main IPC: B01J23/34
- IPC: B01J23/34 ; C11D3/00 ; C11D3/12 ; B01J23/30 ; B01J23/31 ; B01J37/08 ; B01J35/00 ; B01J37/02 ; B01J23/888 ; B01J23/89 ; C23C18/12 ; B01D53/86
Abstract:
To provide a novel visible light-responsive photocatalyst or tungsten oxide visible light-responsive semiconductor improved in environmental resistance under an alkaline condition. The tungsten oxide visible light-responsive semiconductor unstable under an alkaline condition is improved in environmental resistance without losing photocatalytic function thereof by adding thereto at least one element selected from the group consisting of copper, tantalum, niobium, lanthanum, bismuth, calcium, chromium, manganese and zinc. The obtained environmental resistant visible light-responsive photocatalyst is subjected to an alkaline treatment to thereby be improved in photocatalytic activity.
Public/Granted literature
- US20130324393A1 Novel Visible-Light-Responsive Photocatalyst with Environmental Resistance Public/Granted day:2013-12-05
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