Sustainable Superhydrophobic PVDF-Grafted Cellulose Membrane for Oil/Water Separation

Yoon Huh, Seulgi Yu, June Huh, Joona Bang

Research output: Contribution to journalArticlepeer-review

Abstract

Herein, we report a facile preparation of superhydrophobic poly(vinylidene fluoride)-grafted cellulose membranes (PVDF-g-CMs) for oil/water separation. To provide the durability of membranes, PVDF was covalently bonded to the CM via the surface-initiated reversible addition-fragmentation chain transfer/macromolecular design via the interchange of xanthates polymerization. The resulting PVDF-g-CMs were characterized by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and water contact angle measurements. The oil/water separation performance was examined using various oils, including n-hexane, chloroform, toluene, diethyl ether, dichloromethane, and silicone oil, and the membranes exhibited excellent performance with a separation efficiency higher than 97% for all oil/water mixtures. More importantly, due to the covalent bonding of PVDF on the surface, the PVDF-g-CMs showed superior stability under various environments, including water, oil, and acidic solutions, enabling them for practical application of oil/water separation.

Original languageEnglish
Pages (from-to)8441-8449
Number of pages9
JournalACS Applied Polymer Materials
Volume4
Issue number11
DOIs
Publication statusPublished - 2022 Nov 11

Keywords

  • PVDF
  • RAFT
  • cellulose membrane
  • oil/water separation
  • superhydrophobic

ASJC Scopus subject areas

  • Process Chemistry and Technology
  • Polymers and Plastics
  • Organic Chemistry

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