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Scifeed alert for new publicationsair purifier chlorine smell Never miss any articles matching your research from any publisherwhirlpool air purifier toronto Get alerts for new papers matching your researchair duct cleaning newark delaware Find out the new papers from selected authors Updated daily for 49'000+ journals and 6000+ publishers Define your Scifeed now Share & Cite This Article MDPI and ACS StyleThe Viability of Photocatalysis for Air Purification. Molecules 2015, 20, 1319-1356. E-Mail Table of Contents Alert DOI: Abstract This paper presents a methodology for the evaluation of the intrinsic photocatalytic oxidation (PCO) kinetics of indoor air pollutants. It combines computational fluid dynamics (CFD) modeling of the fluid flow in the reactor with radiation field modeling and photocatalytic reaction kinetics to yield a rigorous model of a flat-plate, single-pass, flow-through photocatalytic reactor for indoor air purification.

This method was applied to model the PCO of trichloroethylene (TCE) in humidified air and to derive kinetic parameters directly from kinetic data in an integral flow reactor. Steady-state PCO experiments of TCE over irradiated TiO2 (Degussa P25) thin films immobilized on glass supports were carried out at different radiation intensities, flow rates, and inlet substrate concentrations. The oxidation rate of TCE was found to be first-order on the incident photon flux and to follow a Langmuir−Hinshelwood type reaction kinetics rate law. Mass transfer resistances were observed at Reynolds numbers less than 46. Apparent quantum yields were found to be up to 0.97 mol Einstein-1. A comparison of the model prediction with the experimental results in an integral reactor yielded pollutant-specific kinetic rate parameters which were independent of reactor geometry, radiation field, and fluid-dynamics. The kinetic parameters would, therefore, be more universally applicable to the design and scale-up of photocatalytic reactors for indoor air purification.

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