使用x射线光电子能谱对氧化石墨烯表面化学组成进行表征。制备步骤:量取一定量的氧化石墨烯与改性氧化石墨烯分散液,冷冻干燥得到固体粉末,压制得到片状样品,通过XPS分析其表面C O N等元素的键合状态及含量,从而确定GO是否被成功化学修饰。
Characterization of the surface chemical composition of graphene oxide using X-ray photoelectron spectroscopy. Preparation step: Take a certain amount of graphene oxide and modified graphene oxide dispersion, freeze dry to obtain solid powder, press to obtain a sheet-like sample, and analyze the bonding state and content of elements such as C, O, and N on its surface through XPS to determine whether GO has been successfully chemically modified.