▎ 摘　　要

Graphite oxide/ZnO was prepared at low temperature (80 degrees C) with graphite oxide (GO) and zinc sulfate heptahydrate (ZnSO4 center dot 7H(2)O) as initial reactants. The graphene/ZnO (GNS/ZnO) was then prepared by a low-temperature chemical exfoliation method. The as-prepared GNS/ZnO was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscope (FT-IR), thermo-gravimetric analysis (TG), X-ray photoelectron spectroscopy (XPS), Raman spectra (RS), scanning electron microscope (SEM) and transmission electron microscope (TEM), respectively. The results indicate that GO is completely reduced to graphene and the well-dispersed ZnO nanoparticles are successfully deposited on graphene sheets as spacers to keep the neighboring sheets separate. Photoluminescence spectra of ZnO and GNS/ZnO nanocomposites display the fluorescence quenching property of GNS/ZnO, implying that the GNS/ZnO nanocomposites are expected for practical use in the field of photoelectronics.