Add time:09/03/2019         Source:sciencedirect.com

The photocatalytic degradation of Acid Red 27 (cas 1342-87-6) (AR27) was investigated using UV radiation in the presence of TiO2-P25 as a function of initial concentration of AR27 ([AR27]0), oxygen concentration ([O2]), TiO2-P25 amount, light intensity (Ia), pH and temperature. The activation energy of the photocatalytic degradation of AR27 was 8.24 kJ mol−1. The photocatalytic degradation rate follows pseudo-first order kinetic with respect to the AR27 concentration. The following rate of decolorization was achieved by kinetic modeling: rAR27=5.294Iaexp−8247RT0.79O21+0.79O24.23AR271+4.23AR270

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