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Photocatalytic Degradation of Remazol Brilliant Blue Dye by ZnO/UV Process

Abrar M. Algubili, Enas M. Alrobayi and Ayad F. Alkaim

The photocatalytic degradation of Remazol Brilliant Blue dye (RBB) has been investigated under UV irradiation in aqueous suspension of zinc dioxide under a variety of conditions. The degradation was studied by monitoring the change in dye concentration using UV spectroscopic technique. The effects of key operation parameters such as initial dye concentration, catalyst loading, as well as light intensity on the decolorization extents were studied. The decolorization of the organic molecule followed a pseudofirst- order kinetics.