Catalytic Material and Method of Production Thereof催化材料及其制備方法
Volatile organic compounds (VOCs) and carbon monoxide (CO) in the air are contaminants and are harmful to human health. Methods have been developed to eliminate the contaminants. Supported metal catalysts are found to be effective in low-temperature oxidation of CO and hydrocarbons and selective oxidation of propylene.
They usually comprise of nano-sized metal particles attached to a metal oxide support. However, the low catalytic activity at low temperatures and the short life cycle of catalysts make conventional supported metal catalysts undesirable for indoor air purification.
The new method is related to supported metal catalysts with nanostructures that can oxidize CO in the absence of UV illumination with extended lifetime. Such novel catalytic material is capable of oxidizing CO, destroying VOCs and kill and degrade airborne microorganisms (e.g. bacteria and fungi) without using UV lamp irradiation. In addition, the catalyst is able to work at room temperature, ranging from 25'C and 200'C, and can also be functional from 15'C to 500'C. Furthermore, it is highly active for an extended lifetime of at least about 9000 hours of operation without requiring regeneration. Regeneration can be achieved by simple washing and drying in an oven. A prototype has been developed integrating the nanotechnology into a dehumidifier.
1. Require no photo-excitation
2. Germicidal properties capable of removing high percentage of pollutants in single pass
3. More cost-effective as less catalysts are required
4. More efficient in removing pollutants, 25 times faster than commercial nanocatalysts
5. Compact design
6. No facility modifications required
7. Eco-friendly
8. Low production cost
- Integrate with air-conditioning system, a disinfection device or a dehumidifier
- Apply to residential, industrial or commercial establishments
Patent Number: HK1107302A1
Application Number: HK2008101063A
Inventor: YEUNG KING LUN | YAO NAN | HO KA YEE
Priority Date: 7 Jul 2004
Priority Number: HK1107302A1
Application Date: 25 Jan 2008
Publication Date: 7 Aug 2009
Assignee Applicant: The Hong Kong University of Science & Technology
Title: CATALYTIC MATERIAL AND METHOD OF PRODUCTION THEREOF
Usefulness: CATALYTIC MATERIAL AND METHOD OF PRODUCTION THEREOF
化工/材料
化学成分
25 Jan 2008
Hong Kong 08101063.2
Hong Kong HK1107302
TTC.PA.220S
香港
