US Patent 7638555 Photocatalytic nano-crystalline TiO

Patent 7638555 was granted and assigned to The Chinese University of Hong Kong Chorus on December, 2009 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

The Chinese University of Hong Kong Chorus

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7638555

Date of Patent

December 29, 2009

Patent Application Number

10688504

Date Filed

October 17, 2003

Patent Primary Examiner

‌

Johann R. Richter

Patent abstract

The preferred embodiments provide for a process for preparing a TiO2 thin film. The preferred embodiments also provide for TiO2 thin films prepared by the process herein, and a method of using TiO2 thin films for killing bacteria and viruses in an environment under ultraviolet irradiation. The TiO2 thin films according to the invention have higher photocatalytic activity, and can particularly be used to photocatalytically degrade organic pollutants in air to hereby kill bacteria and viruses therein.