Abstract
In this paper, a kind of CdS/ZnO nanocomposite components (CdS/ZnO) was synthesized via a two-step method. The crystal structures, chemical composition and microstructures of the resulting sample were investigated by X-ray powder diffraction (XRD), energy dispersive X-ray analysis (EDX) and fieldemission scanning electron microscopy (FE-SEM). The photocatalytic activity of the CdS/ZnO towards the degradation of methyl orange (MO) was investigated under visible light. The photocatalytic experiments with pure CdS nanoparticles (CdS) and blank test were also conducted CdS/ZnO exhibited the maximum photodegradation efficiency, which is found to be as high as 94.6% after 180 min of reaction. The reason for the enhanced photocatalytic performance was attributed to the promoted separation of photogenerated charge carriers caused by the synergy between CdS and ZnO.
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