Hydrothermal Synthesis of Ce-Doped CdS Nanomaterials for Visible-Light Photocatalytic Applications in Energy and Environmental Systems

Document Type : Research Article

Authors

Department of Chemistry, Sayyed Jamaleddin Asadabadi University

10.22091/jaem.2026.15160.1038

Abstract

CexCd1-xS (0≤x≤0.08) nanoparticles with varying Cerium levels were effectively produced using the hydrothermal technique. The prepared samples were characterized using techniques including X-ray diffraction (XRD), scanning electron microscopy (SEM), Energy-dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), and UV-Vis diffuse reflectance spectroscopy. The photocatalytic performance of pure and CexCd1-xS samples was assessed by observing the decolorization of Reactive Blue 19 in water when exposed to visible light. 6% Ce-doped CdS nanoparticles showed the greatest decolorization in comparison to the different dopant concentrations. The influence of operational parameter such as doping concentration, catalyst amount, initial dye levels, and radical scavengers on photocatalytic activity was assessed. The existence of various radical scavengers such as iodide, carbonate, sulfite, and 1,4-benzoquinone resulted in a significant reduction in the efficiency of decolorization. In summary, we propose that the Ce-doped CdS nanoparticles may serve as a promising photocatalyst for eliminating organic pollutants while exhibiting significant reusability potential.

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