Photooxidation of Sub-Parts-per-Million Toluene and Formaldehyde Levels on Titania Using a Glass-Plate Reactor

The effects of humidity and sub-parts-per-million by volume contaminant levels on the photooxidation of formaldehyde and toluene are presented. UV radiation from a black-light lamp and a titania-coated glass-plate reactor were used to develop kinetic oxidation rates. The data indicated that competit...

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Bibliographic Details
Published in:Environmental science & technology 1996-12, Vol.30 (12), p.3578-3584
Main Author: Obee, Timothy N
Format: Article
Language:English
Subjects:
Air pollution
Applied sciences
Atmospheric pollution
Chemicals
Exact sciences and technology
Indoor pollution and occupational exposure
Oxidation
Pollution
Ultraviolet radiation
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Summary:The effects of humidity and sub-parts-per-million by volume contaminant levels on the photooxidation of formaldehyde and toluene are presented. UV radiation from a black-light lamp and a titania-coated glass-plate reactor were used to develop kinetic oxidation rates. The data indicated that competitive adsorption between water and the two contaminants has a significant effect on the oxidation rate. A simple differential design model is developed and validated using data from two ceramic foam photocatalytic reactors. The utility of rate data developed from the glass-plate reactor as the basis for reactor design models is demonstrated.
ISSN:0013-936X
1520-5851
DOI:10.1021/es9602713