Novel <i>in situ</i> synthesis of quaternary core–shell metallic sulfide nanocomposites for degradation of organic dyes and hydrogen production

Abstract Environmental remediation of toxic organic pollutants on catalytic degradation has gained much attention. Organic dyes and fossil fuels as are the two major problems nowadays. The efficient targeted eradication dye from water systems is a critical global concern for treatment both drinking wastewater. In this study, ZnO–ZnS–CdO–CdS quaternary core–shell nanocomposites (NCs) were synthesized using Ricinus communis stabilizing agent hydrazine hydrate reducing agent. UV-visible spectroscopy photoluminescence confirmed formation NCs. Fourier transform infrared presence functional groups, while scanning electron microscopy analysis revealed that morphology nanomaterials was spherical poly distributed. X-ray powder diffraction crystalline nature prepared samples. nanocatalysts used in production hydrogen gas green sources Brassica campestris leaf extract Congo red methyl dyes. Overall, photocatalytic performance NCs their design successful. catalysts not only active single substrate but also mixture