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

Subject Areas : Journal of Physical & Theoretical Chemistry

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

1 - Not-mentioned
2 - Not-mentioned
3 - Not-mentioned

Received: 2015-05-03 Accepted : 2015-05-03 Published : 2006-02-01

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

Abstract :

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.