Photoelectrochemical Degradation of 4-Chlorocatechol at TiO2 Electrodes: Comparison between Sorption and Photoreactivity
Environmental Science & Technology1997Vol. 31(8), pp. 2298–2302
Citations Over TimeTop 10% of 1997 papers
Abstract
The TiO2-catalyzed photodegradation of a strongly adsorbing substrate, 4-chlorocatechol, has been investigated as a function of solution concentration and pH at illuminated polycrystalline TiO2 electrodes operated at a constant current density. The results are compared to the previously determined sorption behavior of 4-chlorocatechol. The initial rates of 4-chlorocatechol photodegradation measured at pH 3, 5, and 8 and solution concentrations of 20, 50, and 200 μM show a linear correlation with the concentration of the sorbed substrate.
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