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| - Photocatalytic Conversion of Organic Pollutants ExtinctionCoefficients and Quantum Efficiencies
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| - This study describes an experimental method for the evaluation of the rate of absorbed photonsin an aqueous TiO2 slurry reactor. This method and the use of a macroscopic radiation balanceallow for the estimation of extinction coefficients of the dispersed medium. With this end, theeffects of the radiation wavelength on the extinction coefficients of TiO2 dispersions areestablished. The photoconversion of phenol as a model pollutant allows the rate of photodegradation and the effect of the catalyst concentration on this rate to be assessed. In addition, theeffects of several other operating parameters on both the phenol photodegradation and thequantum efficiency are studied in detail. It is shown that there is good agreement betweenparameters estimated using the proposed reaction rate model and data from photoconversionand light transmission experiments.
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