• 文献标题:   Preparation of graphene-based aerogels by Pickering emulsion method and their performance
  • 文献类型:   Article, Early Access
  • 作  者:   LIU HE, XIANG XX, LIU ZX, YANG F, LIN ZM, CHEN S, XU GQ
  • 作者关键词:   graphenebased aerogel, pickering emulsion, preparation control, adsorption, organic compound
  • 出版物名称:   FULLERENES NANOTUBES CARBON NANOSTRUCTURES
  • ISSN:   1536-383X EI 1536-4046
  • 通讯作者地址:   China Univ Petr
  • 被引频次:   0
  • DOI:   10.1080/1536383X.2020.1859490 EA DEC 2020
  • 出版年:  

▎ 摘  要

Pickering emulsion were used as soft template for the preparation of two different kinds of graphene-based aerogels (graphene aerogels, named AGAs and graphene/polyvinyl alcohol (PVA) aerogels, named BGAs) in this work. The Pickering emulsions show good control effect on the pore sizes, density and porosity of the two kinds of graphene-based aerogels. The increase of the oil/water ratio in the emulsion can leads to increase of pore size and porosity and decrease of density of AGAs and BGAs. And the increase of agitation speed during the emulsion preparation leads to the decrease of the pore sizes of AGAs and BGAs, while shows slight influence on the porosity and density of the materials. Volume filling behavior was found when AGAs and BGAs adsorbing organics, so it is considered that high porosity and high open pore fraction in the aerogels will favor the adsorption capacity on organics.