High Photocatalytic Performance of ZnO and ZnO/CdS nanostructures against Reactive Blue 4 Dye

Document Type : Original Research Article

Authors

1 College of Pharmacy, University of Kufa, College of Science, University of Kufa, Iraq

2 College of science, University of Kufa, College of Science, University of Kufa, Iraq

Abstract

Heterogeneous photocatalysis is an effective wastewater treatment technology for the removal of tissue effluents and some contaminants. Among the effective catalytic treatments, hybrid semiconductor photocatalysts have been widely applied and have received more attention in the past few decades where particles and nanocomposites (ZnO, ZnO/CdS) were prepared by hydrothermal method from raw materials, and its photocatalytic activity using reactive Reactive Blue 4 dye under the influence of ultraviolet radiation. The prepared nanocomposites are characterized using different physicochemical techniques including X-ray diffraction, FESEM analysis, TEM. Their photodegradation results revealed that ZnO doped ZnO/CdS nanocomposites show impressive activity towards photodegradation of (Reactive Blue 4) dye. The prepared kinetic diagrams showed a pseudo-first-order interaction. The results of the dissociation efficiency of the dye solution (Reactive Blue 4) dye with the surface of ZnO were greater than the surface of the ZnO/CdS nanocomposite, and the rate constant was calculated for each of them.

Graphical Abstract

High Photocatalytic Performance of ZnO and ZnO/CdS nanostructures against Reactive Blue 4 Dye

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