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

Yoon Huh, Seulgi Yu, June Huh, Joona Bang

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

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

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (nos. 2021R1A2C2006167 and 2022R1A4A1020543) and also by the Creative Materials Discovery Program through NRF grant funded by MSIT (no. 2018M3D1A1058536).

Publisher Copyright:
© 2022 American Chemical Society. All rights reserved.

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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