Photocatalytic nano-crystalline TiO2 thin films, method for preparing the same and use thereof

US7638555B2 · kind B2 · utility

Assignee

• The Chinese University of Hong Kong · CN

Inventors

• Chai Mei Jimmy Yu · Hong Kong, CN
• Jun Lin · 安丰镇, CN

Key dates

• Filing date: Oct 17, 2003
• Grant date: Dec 29, 2009
• Expiry date: Dec 2, 2025

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2255/802
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

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.