Invention Grant
US07863215B2 Photocatalyst, method for producing same, liquid dispersion containing photocatalyst and photocatalyst coating composition
有权
光催化剂，其制造方法，含有光催化剂的液体分散剂和光催化剂涂料组合物
- Patent Title: Photocatalyst, method for producing same, liquid dispersion containing photocatalyst and photocatalyst coating composition
- Patent Title (中): 光催化剂，其制造方法，含有光催化剂的液体分散剂和光催化剂涂料组合物
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Application No.: US11884049Application Date: 2006-02-14
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Publication No.: US07863215B2Publication Date: 2011-01-04
- Inventor: Satoru Miyazoe , Takashi Nabeta , Nobuhiko Horiuchi
- Applicant: Satoru Miyazoe , Takashi Nabeta , Nobuhiko Horiuchi
- Applicant Address: JP Minato-Ku, Tokyo
- Assignee: Mitsui Chemicals, Inc.
- Current Assignee: Mitsui Chemicals, Inc.
- Current Assignee Address: JP Minato-Ku, Tokyo
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: JP2005-037763 20050215
- International Application: PCT/JP2006/302542 WO 20060214
- International Announcement: WO2006/088022 WO 20060824
- Main IPC: B01J33/00
- IPC: B01J33/00 ; B01J21/06 ; B01J21/08 ; C01G23/047 ; C04B28/26
Abstract:
Disclosed is a photocatalyst comprising a photocatalytically active base, and a silicon oxide film covering the base and substantially having no pores. The alkali metal content of the photocatalyst is not less than 1 ppm but not more than 1,000 ppm. Also disclosed is a method for producing such a photocatalyst wherein when a photocatalytically active base present in an aqueous medium is coated with a silicon oxide film by using a silicate, the pH of the aqueous medium containing both the photocatalytically active base and the silicate is maintained at 5 or below.
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