石墨烯吸附材料的制备与应用研究进展

石墨烯具有独特的结构、优异的性能,在诸多领域有广泛的应用.石墨烯层的原子均为表面原子,其表面积非常大,是天然的吸附材料.其易于制备、成本低廉等优势使得石墨烯吸附材料成为水处理研究中的热点.石墨烯及其复合材料已经在重金属、染料、杀虫剂、抗生素、石油等污染物的治理方面得到应用.综述了石墨烯吸附材料的制备方法以及其在污水处理方面的应用.分析了污染物在石墨烯吸附材料上的吸附行为,并讨论了石墨烯与污染物的相互作用.着重关注官能团对石墨烯吸附材料性能的影响,从化学视角提出了设计高效石墨烯吸附剂的思路.

Advances in the preparation and applications of graphene adsorbent materials

Due to the unique structure and fascinating properties, graphene holds great potential in various areas. All atoms of graphene sheets are surthce atoms, so graphene has large surthce area and graphene materials are ideal adsorbents. Because graphene materials are easy to prepare and the operating costs are low, graphene adsorbent materials have attracted large interests in water treatment. Graphene and its derivatives have been applied in remediating heavy metals, dyes, pesticides, antibiotics, oils, and so on. in the review, the advances are summarized in the preparation and application of graphene adsorbent materials, in particular the applications in water treatment. The adsorption behaviors of pollutants on graphcne materials are analyzed, and the interactions between pollutants and graphene materials are discussed. The influence of functional groups is emphasized on the performance of graphene adsorbent materials. Some guidelines in designing high-pertbrmance graphene adsorbents are also proposed.