Journal of Materials Science

, Volume 54, Issue 7, pp 5918–5926 | Cite as

Highly compressible polyimide/graphene aerogel for efficient oil/water separation

  • Rui-Peng RenEmail author
  • Zhen Wang
  • Jing Ren
  • Yong-Kang LvEmail author


Graphene aerogel with three-dimensional (3D) interconnected porous structure and good hydrophobicity has been extensively investigated for sorbent materials for oils and demonstrated to be effective. Herein, a 3D polyimide–graphene aerogel (PI-GA) nanocomposite has been prepared by introducing water-soluble polyimide (PI). Benefiting from the synergetic effect of PI and GA, the PI-GA nanocomposite exhibits ultralow density, excellent compressibility and hydrophobicity. When evaluated as a sorbent material for oils and organic solvent, PI-GA nanocomposite has high absorption capacity and can separate oil from water rapidly and efficiently. Furthermore, the mechanical squeezing process can be used for the recycling of the PI-GA due to its excellent compressibility. The excellent absorption performance and robust mechanical properties make the PI-GA suitable for oil cleanup and chemical leakage.



This work was supported by the National Natural Science Foundation of China (21406154, 21776196, 51778397).

Supplementary material

10853_2018_3238_MOESM1_ESM.docx (1.6 mb)
Supplementary material 1 (DOCX 1642 kb)


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi ProvinceTaiyuan University of TechnologyTaiyuanChina

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