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Proceedings Paper

Photocatalytic degradation of SO2 by diffuser of light pipe coated with Nanometer TiO2 thin films
Author(s): Yanpeng Wu; Chongfang Ma
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Paper Abstract

Diffusers are important parts of a light pipe which can diffuse light evenly to the place need to illuminate. The lamphouses used in the experiment were two ultraviolet radiation lamps with the power of each lamp 8W and main wavelengh was 365nm. The ultraviolet intensity on the surface of the catalyst was about 120μW/cm2. The experiments also showed that diffusers without photocatalysis could reduce the fraction volume of SO2 in a little box of 0.1 m3 volume made up of stainless steel from 1.0 × 10-6 to 0.36 × 10-6. Diffuser coated with photocatalysis within 1h SO2 fraction volume decomposed from 1.0 × 10-6 down to 0.25 × 10-6 with faster and more complete degradation of SO2. The experimental results showed that the performance of photocatalysis combined with diffusers of light pipe had better effect in a small space.

Paper Details

Date Published: 20 November 2009
PDF: 5 pages
Proc. SPIE 7511, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 75111Y (20 November 2009); doi: 10.1117/12.838129
Show Author Affiliations
Yanpeng Wu, Univ. of Science and Technology Beijing (China)
Chongfang Ma, Beijing Univ. of Technology (China)


Published in SPIE Proceedings Vol. 7511:
2009 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems
Shenghua Ye; Guangjun Zhang; Jun Ni, Editor(s)

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