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The photocatalytic decomposition of an eco-persistent AO7 dye with sunlight in an oxygenated aqueous suspension has been studied under a nano-crystalline hexagonal ZnO photocatalyst.The effect of substrate temperature on the structural,morphological and photoactive properties has been investigated.The degradation of the A07 dye is achieved using a photoelectrochemical reactor module equipped with ZnO synthesized electrodes. Kinetic parameters have been investigated in terms of a first order rate equation.The rate constant for this heterogeneous photocatalysis was evaluated as a function of the initial concentration of original species.A substantial reduction in A07 dye is achieved as analyzed from COD and TOC studies.The mechanism for the degradation could be explained on the basis of the Langmuir-Hinshelwood mechanism.
The photocatalytic decomposition of an eco-persistent AO7 dye with sunlight in an oxygenated aqueous suspension has been studied under a nano-crystalline hexagonal ZnO photocatalyst. The effect of substrate temperature on the structural, morphological and photoactive properties has been investigated. A07 dye is achieved using a photoelectrochemical reactor module equipped with ZnO synthesized electrodes. Kinetic parameters have been investigated in terms of a first order rate equation. The rate constant for this heterogeneous photocatalysis was evaluated as a function of the initial concentration of the original species. A substantial reduction in A07 dye is achieved as analyzed from COD and TOC studies. the mechanism for the degradation could be explained on the basis of the Langmuir-Hinshelwood mechanism.