Heterogeneous Photocatalytic Degradation of Azure B: Measurement of Kinetic Parameters and Effluent Treatment using Solar Energy

摘要

The present work incorporates the study of efficiency of WO_(3) for photocatalytic degradation of Azure B dye. Effect of some factors such as catalyst dose, concentration of dye, intensity of light, pH etc., on degradation of the dye was examined. The experimental data prove that the reaction follows pseudo first order kinetics. Participation of OH* free radical is confirmed by scavenger studies. Optimum conditions (pH 7.8, dye concentration 5-10~(-6) moles/litre, semiconductor amount 0.12g, light intensity 37 mW/cm~(2)) were extracted by varying factors. Mineralization of dye produces harmless products.