低温热还原氧化石墨烯的结构性能研究

In this paper, the spongy graphene oxide (GO) nanosheets have been made via a modified Hummers' method. A mild thermal reduction of GO at various temperature and time was then achieved in solvents of N,N-dimethylacetamide(DMAc), N,N-Dimethylformamide(DMF) and water(H2O), respectively. The properties of obtained GO and reduced graphene oxide(rGO) was then characterized and analyzed by its performance in Fourier transform infrared spectrometry, Raman spectroscopy, X-ray diffraction, scanning electron microscope, transmission electron microscope and contact angle measurement. The result showed that the GO was more completely reduced with an increasing reaction time, which is verified by the decrease in the density of oxygen functional groups and improvement of disorder and hydrophobicity.