• 文献标题:   Studies on Graphene Suspension and Self-assembled Graphene-based Membranes
  • 文献类型:   Article
  • 作  者:   YANG L, LI KZ, WANG H, WEI YG, ZHU X
  • 作者关键词:   graphene dispersion, surfanctant, graphene film, composite film
  • 出版物名称:   CHEMICAL JOURNAL OF CHINESE UNIVERSITIESCHINESE
  • ISSN:   0251-0790
  • 通讯作者地址:   Kunming Univ Sci Technol
  • 被引频次:   0
  • DOI:   10.7503/cjcu20150025
  • 出版年:   2015

▎ 摘  要

Two kinds of surfactants, sodium dodecyl sulfate (SDS) and polyvinyl alcohol(PVA), were used to improve the dispersion of graphene in water It was found that SDS can avoid the reunion between graphene layers, which makes the graphene evenly dispersed in the aqueous solution. Graphene (G) and Graphene flake films(GF) on the surface of ITO electrode were prepared via spin-coating with graphene dispersions. Scanning electron microscopy(SEM) and atomic force microscopy(AFM) results showed that the two types of graphene films represent a yarn shape of transparent flake structure. G/Ru and GF/Ru composite membranes were also prepared by molecular film self-assembly of the graphene films and Ru complex, which were characterized by cyclic voltammetry(CV) and ultraviolet-visible(UV-Vis) spectrometry. The results showed that the prepared composite films own high activity for the absorption of sunlight, indicating excellent photoelectric properties.