石墨烯纳米片作为新型吸附剂在气体、有机化合物和金属离子的吸附、预浓缩和去除中的应用。

Graphene nanosheets as novel adsorbents in adsorption, preconcentration and removal of gases, organic compounds and metal ions.

机构信息

College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China; College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China.

College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China.

出版信息

Sci Total Environ. 2015 Jan 1;502:70-9. doi: 10.1016/j.scitotenv.2014.08.077. Epub 2014 Sep 20.

DOI:10.1016/j.scitotenv.2014.08.077

PMID:25244035

Abstract

Due to their high adsorption capacities, carbon-based nanomaterials such as carbon nanotubes, activated carbons, fullerene and graphene are widely used as the currently most promising functional materials. Since its discovery in 2004, graphene has exhibited great potential in many technological fields, such as energy storage materials, supercapacitors, resonators, quantum dots, solar cells, electronics, and sensors. The large theoretical specific surface area of graphene nanosheets (2630 m(2)·g(-1)) makes them excellent candidates for adsorption technologies. Further, graphene nanosheets could be used as substrates for decorating the surfaces of nanoparticles, and the corresponding nanocomposites could be applied as novel adsorbents for the removal of low concentrated contaminants from aqueous solutions. Therefore, graphene nanosheets will challenge the current existing adsorbents, including other types of carbon-based nanomaterials.

摘要

由于其高吸附能力，碳基纳米材料如碳纳米管、活性炭、富勒烯和石墨烯被广泛用作目前最有前途的功能材料。自 2004 年发现以来，石墨烯在许多技术领域都表现出了巨大的潜力，如储能材料、超级电容器、谐振器、量子点、太阳能电池、电子和传感器。石墨烯纳米片具有较大的理论比表面积（2630 m2·g-1），使它们成为吸附技术的优秀候选材料。此外，石墨烯纳米片可以用作纳米粒子表面修饰的基底，相应的纳米复合材料可以用作新型吸附剂，用于从水溶液中去除低浓度污染物。因此，石墨烯纳米片将挑战目前现有的吸附剂，包括其他类型的碳基纳米材料。