中文摘要：

采用压力过滤自组装法以聚醚砜超滤膜为基体制备了氧化石墨烯膜，并通过分别与乙二胺、丙二胺、间苯二胺交联来控制不同的层间距。运用扫描电子显微镜、傅里叶变换红外光谱、接触角、X射线光电子能谱、X射线衍射等多种手段研究了不同层间距氧化石墨烯膜的结构和性质；选择天然水作为原水，进一步研究了氧化石墨烯膜的水通量、抗污染性和对天然有机物的去除情况。结果表明，氧化石墨烯膜有良好的叠层结构，并且二胺单体在层间交联形成了稳定的共价键；二胺与氧化石墨烯层间的交联反应能有效控制层间距，从而改变氧化石墨烯膜的性能。

英文摘要：

GO membranes were made using the pressure-assisted filtration method, which was cross-linked by three diamine monomers on a polyethersulfone support. The effects of various diamine monomers on the synthesized membrane were analyzed using several characterization methods, including scanning electron microscopy, Fourier transform infrared spectroscopy, dynamic contact angle measurements, X-ray photoelectron spectroscopy and X-ray diffraction. The prepared GO membranes had a well stacked layer structure that was formed by nanosheets and were stable because they were covalently bonded by cross-linking. The performance of the GO membranes for removing natural organic matter was investigated in detail. The results showed that C/N covalent bonds formed between the GO and diamine and effectively suppressed the interlayer spacing and stretching, which resulted in the best ethylenediamine performance, Overall, the ultrathin GO composite membrane not only effectively removed various contaminants from the NOM, but also qualified the water flux and fouling resistance performance.