Superhydrophobic and superoleophilic PH-CNT membrane for emulsified oil-water separation

Yanhua Zhao, Jiaxin Guo, Yuchao Li, Xinning Zhang, Alicia Kyoungjin An, Zuankai Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)

Abstract

Extensive efforts have been devoted to oil-water separation in recent years, especially the separation of water-in-oil emulsions. In this study, we report a superhydrophobic and superoleophilic PH-CNT (poly vinylidene fluoride-hexafluoropropylene, carbon nanotubes) membrane with highly porous structures for oil-water separation. The membrane possesses hierarchically layered micro/nano-porous structures both on the membrane surface and inside the nanofibers. The membrane effectively separated surfactant stabilized water-in-oil emulsions with micro/nano droplets, demonstrating a separation efficiency above 99.5%, while also exhibiting excellent recyclability with good chemical and mechanical stability. The PH-CNT membrane holds great potential for the purification of emulsified oil-water mixtures from industrial and domestic sources.

Original languageEnglish
Article number115536
JournalDesalination
Volume526
DOIs
Publication statusPublished - 15 Mar 2022
Externally publishedYes

Keywords

  • Antifouling
  • Hierarchically porous
  • Superhydrophobic
  • Superoleophilic
  • Water-in-oil emulsion

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)
  • Water Science and Technology
  • Mechanical Engineering

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