• 文献标题:   Synthesis of Graphene Aerogel Adsorbents and Their Applications in Water Treatment
  • 文献类型:   Review
  • 作  者:   SUN YR, YANG MX, YU F, CHEN JH, MA J
  • 作者关键词:   graphene aerogel, fabrication method, capacitive deionization, photocatalysi, adsorption
  • 出版物名称:   PROGRESS IN CHEMISTRY
  • ISSN:   1005-281X
  • 通讯作者地址:   Tongji Univ
  • 被引频次:   15
  • DOI:   10.7536/PC150226
  • 出版年:   2015

▎ 摘  要

Graphene aerogels (GA) are three-dimensional (3D) graphene-based macrostructures with well-defined interconnected porous networks. Their excellent features, including large surface area, controllable porous structure, ability of electronic transmission and unique interconnected networks, make them an ideal material for water treatment. Up to now, there are many fabrication methods for preparing GA which differs in performance and structure. However, their methodology and relationships between different methods, structures and features haven't been reported systematically. This review aims to describe the fabrication methods for preparing GA absorbents as well as their applications in water treatment and perspective. Thus, the structural features of GA, especially those related to adsorption and relationships between structures and adsorption are analyzed. The methodology and key factors in preparing process which have an influence on structures of GA are also summarized. Based on the methodology, the synthesis methods for preparing GA can be classified to five types, namely template method, intercalation method, self-supporting method, substrate-casting method and gelation, which are described and exampled in detail. Applications as well as mechanisms in water treatment, including adsorption of organic pollutants and heavy metals, oil-water separation, photocatalysis and capacitive deionization are systematically reviewed. Finally, the problems in environmental applications and prospects of further research are discussed.