Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Inorganic carbon containing
Reexamination Certificate
2002-10-28
2008-10-14
Lorengo, Jerry (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Inorganic carbon containing
C502S309000, C502S350000, C252S516000, C252S518100, C252S520200, C252S520500, C252S520220, C252S521300
Reexamination Certificate
active
07435702
ABSTRACT:
The photocatalyst based on a composite WO3—SiC/TiO2semiconductor and subjected to radiation whose wavelength is at least partly less than 400 nm gives1 photocatalytic oxidation of volatile organic compounds and leads to their total mineralisation into CO2and H2O.The process for the photocatalytic purification of industrial, agricultural or domestic gaseous effluent may be conducted at room pressure and temperature. Its conversion rate is high and stable.
REFERENCES:
patent: 4240087 (1980-12-01), Krause et al.
patent: 4427508 (1984-01-01), Lichtin
patent: 4774026 (1988-09-01), Kitamori et al.
patent: 4848348 (1989-07-01), Craighead
patent: 5130031 (1992-07-01), Johnston
patent: 5670247 (1997-09-01), Takaoka et al.
patent: 5961843 (1999-10-01), Hayakawa et al.
patent: 6074724 (2000-06-01), Inaba et al.
patent: 6084109 (2000-07-01), Chu et al.
patent: 6290180 (2001-09-01), Browall et al.
patent: 6346253 (2002-02-01), Takaoka et al.
patent: 6585863 (2003-07-01), Davydov et al.
patent: 7208443 (2007-04-01), Kimura et al.
patent: 03-151826 (1991-06-01), None
patent: 04-063115 (1992-02-01), None
patent: 05-309267 (1993-11-01), None
patent: 09-192496 (1997-07-01), None
patent: 2000-158455 (2000-06-01), None
patent: 2005-271490 (2005-10-01), None
“Titania and tungsten doped titania thin films on glass; active photocatalys”, by Ashti Rampaul, et al. Polyhedron 22 (2003), pp. 35-44.
“Photoreduction of Carbon Dioxide and Water into Formaldehyde and Methanol on Semiconductor Materials”, by B. Aurian-Blajeni, et al. Solar Energy, vol. 25, pp. 165-170.
Zorn, M.E. et al ‘Photocatalytic oxidation of acetone vapor on TiO2/ZrO2 thin films’ Applied Catalysis B: Environmental, vol. 23, p. 1-8 (1999).
Kennedy, J.C. and A.K. Datye, Journal of Catalysis, vol. 179, p. 375-389 (1998).
Serpone, N. et al. “Exploiting the interparticle electron transfer process in the photocatalysed oxidation of phenol, 2-chlorophenol and pentachlorophenol: chemical evidence for electron and hole transfer between coupled semiconductors”, Journal of Photochemistry and Photobiology A: Chemistry, vol. 85, p. 247-255 (1995).
Xie, Y.C. et al., Advances in Catalysis, vol. 37 p. 1 (1990).
Database WPI, Section Ch, Week 200220, Derwent Publications Ltd., London, GB, XP-002213957, JP03264317 B, Toto Ltd., Mar. 11, 2002.
Database WPI, Section Ch, Week 199740, Derwent Publications Ltd., London, GB; AN 1997-429732, XP002213958, JP09192496 A, Matsushita Electric Works Ltd., Jul. 29, 1997.
Database WPI, Section Ch, Week 200213, Derwent Publications Ltd. London, GB; AN 1998-280305, XP002213959, JP03255346 B, Toto Ltd., Feb. 12, 2002.
Bernhardt Pierre
Garin Francois
Ledoux Marc J.
Pham-Huu Charlotte
Pham-Huu Cuong
Centre National de la Recherche Scientifique
Hailey Patricia L
Lorengo Jerry
SICAT
Universite Louis Pasteur de Strasbourg
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