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Antifouling and flux enhancement of reverse osmosis membrane by grafting poly (3-sulfopropyl methacrylate) brushes

  • Reema Mushtaq
  • , Muhammad Asad Abbas
  • , Shehla Mushtaq
  • , Nasir M. Ahmad*
  • , Niaz Ali Khan
  • , Asad U. Khan
  • , Wu Hong
  • , Rehan Sadiq
  • , Zhongyi Jiang
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

A commercial thin film composite (TFC) polyamide (PA) reverse osmosis membrane was grafted with 3-sulfopropyl methacrylate potassium (SPMK) to produce PA-g-SPMK by atom transfer radical polymerization (ATRP). The grafting of PA was done at varied concentrations of SPMK, and its effect on the surface composition and morphology was studied by Fourier-Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), optical profilometry, and contact angle analysis. The grafting of hydrophilic ionically charged PSPMK polymer brushes having acrylate and sulfonate groups resulted in enhanced hydrophilicity rendering a reduction of contact angle from 58° of pristine membrane sample labeled as MH0 to 10° for a modified membrane sample labeled as MH3. Due to the increased hydrophilicity, the flux rate rises from 57.1 L m-2 h-1 to 71.2

Original languageEnglish
Article number213
JournalMembranes
Volume11
Issue number3
DOIs
StatePublished - Mar 2021
Externally publishedYes

Bibliographical note

Publisher Copyright:
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Keywords

  • ATRP
  • Antifouling
  • E. Coli
  • Grafting
  • PSMPK brushes
  • S. Aureus
  • TFC-PA RO membrane

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Process Chemistry and Technology
  • Filtration and Separation

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