Abstract
The treatment of aqueous phenol (100mgl−1) and nitrobenzene (50mgl−1) solutions using iron(III) and UV radiation has been carried out. The quantum yield of photodegradation of both compounds has been determined (φphenol=11.2±2.0mmoleinstein−1, φNB=6.0±0.5mmoleinstein−1). The effect of the amount of ferric ion in the degradation rate has been studied in the range of molar iron(III) to organic compound ratios from 0 to 6. The reaction rate showed to follow a first-order kinetic with respect to the substrate and the kinetic constant depends on the Fe(III)/organic ratio. Optimal values of these kinetic constants have been found.
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