Kinetic modeling on photo oxidative degradation of C.I acid yellow 23 by UV/H_2 O_2 process

الموضوعات : Journal of Physical & Theoretical Chemistry

N. Modirshahla ¹ , M.A. Behnaiady ² , Z. Gazi Tabatabaie ³

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تاريخ الإرسال : 14 الأحد , رجب, 1436 تاريخ التأكيد : 14 الأحد , رجب, 1436 تاريخ الإصدار : 02 الأربعاء , محرم, 1427

الکلمات المفتاحية: Advanced oxidation processes (, Photo oxidation, UV/H_2 O_2, C.I acid yellow 23, Kinetic Model,

ملخص المقالة :

The kinetic of photo oxidative decolorization of C.I. Acid yellow 23 (AY23) was investigated in UV/process. The semi-logarithmic of the concentrations of AY23 versus irradiation time were linear, suggesting pseudo-first order reaction. A simple kinetic model is proposed which confirms pseudo- first order reaction. The results indicate that the apparent reaction rate constant is a function of light intensity, and AY23 initial concentrations. These results are in good agreement with proposed kinetic model.