title: Method for predicting photocatalytic oxidation rates of organic compounds.
abstract: In designing a photocatalytic oxidation (PCO) system for a given air pollution source, destruction rates for volatile organic compounds (VOCs) are required. The objective of this research was to develop a systematic method of predicting PCO rate constants by correlating rate constants with physical-chemical characteristics of compounds. Accordingly, reaction rate constants were determined for destruction of volatile organics over a titanium dioxide (TiO2) catalyst in a continuous mixed-batch reactor. It was found that PCO rate constants for alkanes and alkenes vary linearly with gas-phase ionization potential (IP) and with gas-phase hydroxyl radical reaction rate constant. The correlations allow rates of destruction of compounds not tested in this research to be predicted based on physical-chemical characteristics.
authors.affiliation: University of Texas, Arlington, Texas, USA. msattler@alumni.utexas.net
authors.forename: Melanie L
authors.initials: ML
authors.lastname: Sattler
authors.forename: Howard M
authors.initials: HM
authors.lastname: Liljestrand
mesh_terms: D000393:Air Pollutants; D002384:Catalysis; D005544:Forecasting; D008962:Models, Theoretical; D009930:Organic Chemicals; D010084:Oxidation-Reduction; D010777:Photochemistry; D014835:Volatilization
chemical_list: D000393:Air Pollutants; D009930:Organic Chemicals