Photocatalytic degradation of SO[sub]2[/sub] by diffuser of light pipe coated with Nanometer TiO[sub]2[/sub] thin films

Yanpeng Wu; Chongfang Ma

doi:10.1117/12.838129

20 November 2009 Photocatalytic degradation of SO₂ by diffuser of light pipe coated with Nanometer TiO₂ thin films

Yanpeng Wu, Chongfang Ma

Proceedings Volume 7511, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems; 75111Y (2009) https://doi.org/10.1117/12.838129
Event: International Conference on Optical Instrumentation and Technology, 2009, Shanghai, China

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.

Citation Download Citation

Yanpeng Wu and Chongfang Ma "Photocatalytic degradation of SO₂ by diffuser of light pipe coated with Nanometer TiO₂ thin films", Proc. SPIE 7511, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 75111Y (20 November 2009); https://doi.org/10.1117/12.838129

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