NDLI: Degradation of VOCs With Pt-TiO2 Photocatalyst and Concentrated Sunlight

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Sano, Taizo Negishi, Nobuaki Takeuchi, Koji Matsuzawa, Sadao
Copyright Year	2004
Abstract	A Parabolic trough concentrator (PTC) and a photocatalytic reactor with Pt-deposited TiO2 Photocatalyst were designed and constructed for the degradation of volatile organic compounds (VOCs). The temperature of photocatalyst coated on the sunlight receiver was easily elevated to around 473 K by PTC, and 79% of toluene or 93% of acetaldehyde was removed continuously, when gaseous toluene (15ppm) or acetaldehyde (400ppm) was passed through the reactor. The combination of sunlight concentrator and Pt-TiO2 catalyst exhibited the enhancement of complete degradation of VOCs, the inhibition of deactivation, and the reactivation of photocatalyst. The contributions of photocatalytic and catalytic activities of Pt-TiO2 were analyzed by using UV lamp and electric heater. Acetaldehyde was thermocatalytically degraded by photodeposited Pt on TiO2 at 343–463 K without UV irradiation, however the UV irradiation was necessary for the complete oxidation of acetaldehyde into CO2.
Sponsorship	Solar Energy Division
Starting Page	561
Ending Page	569
Page Count	9
File Format	PDF
ISBN	0791837475
DOI	10.1115/ISEC2004-65072
Volume Number	Solar Energy
Conference Proceedings	ASME 2004 International Solar Energy Conference
Language	English
Publisher Date	2004-07-11
Publisher Place	Portland, Oregon, USA
Access Restriction	Subscribed
Subject Keyword	Ultraviolet radiation Temperature Catalysts Irradiation (radiation exposure) Carbon dioxide Sunlight Oxidation Parabolic troughs Organic compounds
Content Type	Text
Resource Type	Article

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