Kinetics Study, and Proposed Mechanism for the Photochemical Reduction of Chromium (VI) by Iron(III)-mandelic acid Complexes in Aqueous Solutions.

Authors

  • Hasan Jraikuos

Abstract

 

In the present work, the photochemical reduction of Cr(VI) induced by iron(III)-mandelate complexes in aqeuous solutions was studied. Comparison experiments of Cr(VI) photoreduction in -system were carried out for determining the optimal experimental conditions. The effects of  and initial concentrations of various reactants [Fe(III), mandelate and Cr(VI)] on the photoreduction efficiency of Cr(VI) were investigated.

Experimental results indicate that the photoreactive iron(III)-mandelate complex is able to reduce Cr(VI) under UV/VIS light , and the optimum  value for photochemical reduction of Cr(VI) is a bout .

The chromium(VI) photoreduction efficiency increases with increasing initial concentrations of Fe(III) or mandelate, but it decreases with increasing initial concentrations of  Cr(VI).

In addition, the probable mechanism of the photochemical reduction of Cr(VI) by photoreactive iron(III)-mandelate complex in aqeuous  solution  has been suggested.

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Published

2019-02-27

How to Cite

1.
Jraikuos H. Kinetics Study, and Proposed Mechanism for the Photochemical Reduction of Chromium (VI) by Iron(III)-mandelic acid Complexes in Aqueous Solutions. TUJ-BA [Internet]. 2019Feb.27 [cited 2024Nov.24];39(3). Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/3729

Issue

Vol. 39 No. 3 (2017): العلوم الأساسية

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Articles

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