Method for predicting photocatalytic oxidation rates of organic compounds.
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.
Sattler
Melanie L
ML
University of Texas, Arlington, Texas, USA. msattler@alumni.utexas.net
Liljestrand
Howard M
HM
D000393:Air Pollutants; D002384:Catalysis; D005544:Forecasting; D008962:Models, Theoretical; D009930:Organic Chemicals; D010084:Oxidation-Reduction; D010777:Photochemistry; D014835:Volatilization
D000393:Air Pollutants; D009930:Organic Chemicals