中文摘要：

石墨烯（Graphene,G）是由类似苯环结构组成的蜂窝状二维晶形结构，具有大的比表面积和共轭体系，是一种优良的吸附剂。但G化学稳定性极好，几乎不溶解；另外，层与层之间强大的π-π共轭作用，致使其易在水或有机溶剂中发生聚集，不利于其本身特性的展现。将G与其它材料复合，不仅可以改善G的分散性，而且可以赋予复合材料一些新的特性。该文综述了近年G复合材料的制备方法及其作为吸附剂在吸附环境污染物中的研究进展，对吸附机理进行了简述，并对G复合材料作为吸附剂的发展趋势进行了展望。

英文摘要：

Graphene（G） is an efficient adsorbent in many fields,which composes of a two-dimensional monolayer with a honeycomb-like aromatic structure.It possesses a great specific surface area and a huge π-π conjugated system.However,the stable chemical property,indissolubility with solvents and the strong π-π interaction between the layers,lead to the irreversible agglomerates of G in aqueous solution and restrict its further application.G could be composited with some other materials such as polypyrrole,polymeric ionic liquids,Fe3O4@SiO2 ,etc.G composites could not only improve the dispersion of G in solution,but also give some novel characteristics to the composites.In this paper,the preparation of G composites by chemical or physical methods was summarized.The adsorption performances of G composites as adsorbents for environmental pollutants including pesticide residues,benzene derivatives,organic dyes and heavy metal ions was reviewed.Besides,the future development trends of G composites as adsorbents were also discussed.