Synthesis and Characterization of CdS/ZnO Nano-composites Structure and Enhanced Photocatalytic

CdS nanoparticles were synthesized on ZnO nanorods by a sample hydrothermal method.The as-grown ZnO/CdS heterostructures were characterized by scanning electron microscopy(SEM),X-ray diffraction(XRD).It is shown that ZnO nanonods could be gradually corroded with the growth process of CdS.We selected ZnO-CdS nano-composites as a configuration to decompose methyl orange(MO) under ultraviolet and green light irradiation.Compared with ZnO nanorods,the absorption spectrum of CdS/ZnO nano-composites could be extended from ultraviolet to visible light,then compared with ZnO nanorods the photocatalytic activity of the nano-composites was obvious enhanced.