The platform effect of graphene oxide on CO2 transport on copper nanocomposites in ionic liquids

Il Seok Chae, Jung Hyun Lee, Jinkee Hong, Yong Soo Kang, Sang Wook Kang

Research output: Contribution to journalArticle

12 Citations (Scopus)


We report the effect of graphene oxide (GO) on a facilitated CO2 transport membrane consisting of copper nanoparticles (CuNP) prepared in situ in ionic liquids (IL), such as 1-hexyl-3-methylimidazolium nitrate (HmimNO3) and 1-methyl-3-octylimidazolium tetrafluoroborate (MoimBF4). The highly smooth surface of the GO was characterized by atomic force microscopy, and the interactions between the GO and the IL were investigated by Fourier transform-Raman spectroscopy. With GO, the fabricated HmimNO3/CuNP/GO and MoimBF4/CuNP/GO composite membranes showed CO2/N2 separations of 8.7 and 30.7, respectively, with enhanced CO2 gas permeance compared to IL/CuNP composite membrane without GO. This implies that graphene oxide can be used as an effective additive in nanocomposite membranes for enhanced CO2 permeance.

Original languageEnglish
Pages (from-to)343-347
Number of pages5
JournalChemical Engineering Journal
Publication statusPublished - 2014 Sep 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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