Kinetics and Mechanism for Photolysis Ferrioxalate Complexes , in the Presence of Chromium (VI) in Aqueous Solutions.
Abstract
In this work, the photolysis of ferrioxalate complexes attended to the photoreduction of hexavalent chromium has been studied kinetically and mechanistically in aqueous solutions, under UV/Visible irradiation .
The results showed, that the iron(III) undergoes rapid photoreduction to iron(II), occompanied by oxidative degradation of oxalic ligands to carbon dioxide .
Photochemically generated is readily reoxidized to by the present in the deaerated - system, thus the is reduced to at last.
In addition, kinetics of the overall occurring photoreaction has been discussed, and its probable mechanism has been suggested under the experimental conditions employed.
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