A fouling-resistant mixed-matrix nanofiltration membrane based on covalently cross-linked Ti3C2TX (MXene)/cellulose acetate

Ravi P. Pandey, P. Abdul Rasheed, Tricia Gomez, Reem S. Azam, Khaled A. Mahmoud

Research output: Contribution to journalArticle

Abstract

A new fouling-resistant mixed-matrix nanofiltration membrane based on a covalently cross-linked Ti3C2TX (MXene)/cellulose acetate (MXene@CA) composite was fabricated by phase inversion followed by formaldehyde cross-linking. The physicochemical properties of the prepared MXene@CA composite membranes were studied by field emission scanning electron microscopy (FESEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), and water contact angle techniques. The performance of the prepared membranes was evaluated with respect to the water flux, bacterial growth inhibition, and rejection properties. The 10%MXene@CA (10:90 wt % of MXene:CA) composite membrane shows high pure water flux of ~256.85 L m−2 h−1 bar−1, 123.28% water uptake, and 69.7% porosity. The 10%MXene@CA membrane, exhibited more than 92% and 98% rejection of rhodamine B (RhB) and methyl green (MG), respectively. Furthermore, 10%MXene@CA membrane exhibited more than 98% and 96% growth inhibition for E. coli and B. subtilis, respectively. Also, the optimal membrane showed a significantly improved hydrophilicity (water contact angle = 60.8°), which has favored good antifouling properties. The reported nanofiltration membrane, especially 10%MXene@CA, can be suggested for water purification and biomedical applications.

Original languageEnglish
Article number118139
JournalJournal of Membrane Science
Volume607
DOIs
Publication statusPublished - 15 Jul 2020

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Keywords

  • Antifouling
  • Cellulose acetate
  • Mixed-matrix
  • Nanofiltration membrane
  • TiCT MXene

ASJC Scopus subject areas

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

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