Reduction and disorder in graphene oxide induced by electron-beam irradiation

摘要

Structural changes caused by an electron beam with an absorbed dose of 500 kGy were investigated in graphene oxide (GO). In this paper, GO and irradiated GO were characterized by X-ray diffraction, Raman spectroscopy and X-ray photoelectron spectroscopy, respectively. It was found that the interlayer spacing of GO was decreased because of the alteration of functional group percent and the reduction effect. The graphitic structure of GO was also found to be disordered slightly. In addition, the samples were reduced partially after irradiation and electron-beam irradiation of GO appeared to be a promising procedure for large-scale synthesis of graphene.