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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10807058 B1

PDFFull Text
Date of Patent:
Oct. 20, 2020

Filed:

Mar. 09, 2018

Silica-titania composite aerogel particle, photocatalyst-forming composition, and photocatalyst

Applicant:

Fuji Xerox Co., Ltd., Tokyo, JP;

Inventors:

Yasuo Kadokura, Kanagawa, JP;

Yuka Zenitani, Kanagawa, JP;

Hiroyoshi Okuno, Kanagawa, JP;

Hideaki Yoshikawa, Kanagawa, JP;

Yasunobu Kashima, Kanagawa, JP;

Takeshi Iwanaga, Kanagawa, JP;

Shunsuke Nozaki, Kanagawa, JP;

Sakae Takeuchi, Kanagawa, JP;

Assignee:

FUJI XEROX CO., LTD., Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Edward J Cain

Int. Cl.
CPC ...
B01J 13/00 (2006.01); C01B 33/158 (2006.01); C01B 33/159 (2006.01); C01G 23/047 (2006.01); B01J 31/12 (2006.01); B01J 35/00 (2006.01); B01J 35/10 (2006.01); B01J 37/00 (2006.01); B01J 35/02 (2006.01); B01J 21/06 (2006.01); B01J 37/02 (2006.01); B01J 37/03 (2006.01); B01J 21/08 (2006.01); C01G 23/053 (2006.01); B01J 31/02 (2006.01);
U.S. Cl.
CPC ...
B01J 13/0091 (2013.01); B01J 21/063 (2013.01); B01J 21/08 (2013.01); B01J 31/122 (2013.01); B01J 35/004 (2013.01); B01J 35/023 (2013.01); B01J 35/1019 (2013.01); B01J 35/1023 (2013.01); B01J 35/1028 (2013.01); B01J 37/0009 (2013.01); B01J 37/0236 (2013.01); B01J 37/036 (2013.01); C01B 33/159 (2013.01); C01B 33/1585 (2013.01); C01G 23/047 (2013.01); C01G 23/053 (2013.01); B01J 31/0212 (2013.01); C01P 2002/84 (2013.01); C01P 2002/85 (2013.01); C01P 2004/51 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2004/64 (2013.01); C01P 2006/12 (2013.01);
Abstract

A silica-titania composite aerogel particle includes: a base particle including silicon and titanium whose element ratio Si/Ti is more than 0 and 6 or less; and a surface layer present on the base particle and including a metal compound having a metal atom and a hydrocarbon group. The silica-titania composite aerogel particle has absorption at wavelengths of 450 nm and 750 nm in a visible absorption spectrum, has a BET specific surface area in the range of 200 m/g to 1,200 m/g, and has a value A in the range of 0.03 to 0.3. The value A is calculated by formula: A=(peak intensity of C—O bond+peak intensity of C═O bond)/(peak intensity of C—C bond+peak intensity of C═C bond). The peak intensity is obtained from a C is XPS spectrum.

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