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.:
Date of Patent:
Sep. 14, 2010
Filed:
May. 31, 2007
Thomas Henry Vanderspurt, Glastonbury, CT (US);
Treese Hugener-campbell, Coventry, CT (US);
Stephen O. Hay, Tolland, CT (US);
Timothy N. Obee, South Winsdor, CT (US);
Thomas Henry Vanderspurt, Glastonbury, CT (US);
Treese Hugener-Campbell, Coventry, CT (US);
Stephen O. Hay, Tolland, CT (US);
Timothy N. Obee, South Winsdor, CT (US);
Carrier Corporation, Farmington, CT (US);
Abstract
The present disclosure relates to nanocrystalline titanium dioxide (TiO) photocatalysts having nanocrystallites of less than 14 nanometers in diameter, which are substantially defect-free. The TiOphotocatalysts form porous particles having a very large mass transfer surface area, large cylindrical pores, and low mass transfer resistance. The nanocrystalline TiOphotocatalysts provide at least 75% of the photocatalytic activity of commercially-available TiOcrystals having diameters greater than 20 nm. The nanocrystalline TiOphotocatalysts may be doped with a metal, metal oxide, or non-metal dopant. A process for preparing the nanocrystalline TiOphotocatalysts is disclosed. The present disclosure also provides methods for using nanocrystalline TiOphotocatalysts to remove contaminants.