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
(Not-mentioned)
M.A.
Behnaiady
2
(Not-mentioned)
Z.
Gazi Tabatabaie
3
(Not-mentioned)
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.