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The use of W10O32 4- coupled with UV light to reduce the concentration of triclosan and hexavalent chromium in aqueous solutions | Abstract

Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

ISSN: 0975-413X
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Abstract

The use of W10O32 4- coupled with UV light to reduce the concentration of triclosan and hexavalent chromium in aqueous solutions

Author(s): Asmae Bouziani, Abderrahim EL Hourch, Mohammed El Azzouzi and Mohamed Sarakha

The decatungstate of sodium Na4W10O32 (DTA) was synthesized according to the bibliography and characterized by the UV-visible spectra. It was used for the total degradation of the biocide “Triclosan” (TCS) and the reduction of the hexavalent chromium (Cr6+) into trivalent chromium (Cr3+) in aqueous solutions using ultraviolet radiation. This was achieved through a photocatalytic cycle. The effect of oxygen has been deeply investigated. It appeared essential for decatungstate regeneration since its absence induced the inhibition of Triclosan disappearance and completely stopped the photocatalytic cycle.


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