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Application of Nanometer TiO2 Photocatalysis Material in Air Purification

[+] Author Affiliations
Haiyan Hou, Dongsheng Zhu

South China University of Technology, Guangzhou, Guangdong, China

Jun Cheng

Avon MFG (Guangzhou) Ltd., Guangzhou, Guangdong, China

Paper No. MNC2007-21255, pp. 89-93; 5 pages
doi:10.1115/MNC2007-21255
From:
  • 2007 First International Conference on Integration and Commercialization of Micro and Nanosystems
  • First International Conference on Integration and Commercialization of Micro and Nanosystems, Parts A and B
  • Sanya, Hainan, China, January 10–13, 2007
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4265-7 | eISBN: 0-7918-3794-7
  • Copyright © 2007 by ASME

abstract

The production of oil mist in machinery processing workshop is harmful. To control concentration of oil mist, the TiO2 which can treat with manifold organic pollutants is used to purify oil mist. At first, the nanometer TiO2 is prepared using the sol-gel method on the optimum formulation that showed a higher activity. Then it is treated by dip-coating technique using the non-woven fabric as composite support. The efficiency of suppression of oil mist is compared with ordinary materials. With the increase of time, the purification of the nanometer TiO2 photocatalyst sieve against oil mist of non-woven fabric is investigated in solar radiation at room temperature. It oxidizes pollutants of oil mist to CO2 and H2 O. The experiments demonstrat oil mist is oxidized on the TiO2 sol at the 22nd minute with a maximum capacity of 0.3219g. It infers from the experiments the photodegradation effect is high and the reaction is fast. It also concludes that the nanometer TiO2 photocatalysis material is an ideal material for suppressing oil mist in air. At last, a status the application of technology in air purification as well as its problems and trends are presented. The technique has a promising prospect to solve the increasing air problem of the workshop.

Copyright © 2007 by ASME

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