▎ 摘　　要

Graphene oxide nanosheets have been successfully synthesized through a modified Hammer's method by oxidation of pure natural graphite powder. The crystallinity, structure and morphology of the as-synthesized product were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectrophotometry, Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM). XRD and FTIR were performed to verify the structure of the synthesized graphene oxide. The analysis results revealed the presence of oxygen-containing groups in the as-synthesized graphene oxide nanosheets. Additionally, SEM and TEM images revealed the graphene oxide nanosheets synthesized by exfoliation of graphite were very thin layers with transparency and similar to wrinkled and crumpled silk veils.