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PHOTODEGADATION OF TRIAZOPHOS COMPLEXES OF IRON(III) AND COBALT(III) USING ZINC OXIDE AND TITANIUM DIOXIDE AS CATALYSTS | ||
| basrah journal of science | ||
| Article 1, Volume 32, Issue 1, 2014, Pages 136-144 PDF (0 K) | ||
| Author | ||
| Kahtan A. Asker | ||
| Abstract | ||
| In this study, zinc oxide and titanium dioxide are used as photocatalysts to degrade triazophos pesticide complexes with iron(III) and cobalt(III) , under natural weathering conditions. The blank experiments for either illuminated solutions of triazophos complexes , or the suspensions containing ZnO or TiO2 and triazophose complexes in the dark, showed that both illuminatation and the catalyst were necessary for the destruction of the pesticide. The rate of the decolorization of the suspensions was followed spectrophotometrically by measuring the maximum absorption at 400 and 514 nm for iron complex and cobalt complex respectively. The color disappearance was achieved within 200 min for both ZnO and TiO2 catalysts. | ||
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