Fabrication of polysulfone nanocomposite membranes with silver-doped carbon nanotubes and their antifouling performance

Arsalan Khalid, Ahmed Ibrahim, Othman Charles S Al-Hamouz, Tahar Laoui, Abdelbaki Benamor, Muataz Atieh

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In this study, polysulfone (PSf)/silver-doped carbon nanotube (Ag-CNT) nanocomposite membranes were prepared by a phase-inversion technique; they were characterized and evaluated for fouling-resistant applications with bovine serum albumin (BSA) solutions. Carbon nanotubes were doped with silver nanoparticles via a wet-impregnation technique. The prepared Ag-CNT nanotubes were characterized with scanning electron microscopy (SEM)/energy-dispersive X-ray spectroscopy, X-ray diffraction, Raman spectroscopy, and thermogravimetric analysis. The fabricated flat-sheet PSf/Ag-CNT nanocomposite membranes with different Ag-CNT loadings were examined for their surface morphology, roughness, hydrophilicity, and mechanical strength with SEM, atomic force microscopy, contact angle measurement, and tensile testing, respectively. The prepared composite membranes displayed a greater rejection of BSA solution (≥90%) and water flux stability during membrane compaction with a 10% reduction in water flux values (up to 0.4% Ag-CNTs) than the pristine PSf membrane. The PSf nanocomposite membrane with a 0.2% Ag-CNT loading possessed the highest flux recovery of about 80% and the lowest total membrane resistance of 56% with a reduced irreversible fouling resistance of 21%.

Original languageEnglish
Article number44688
JournalJournal of Applied Polymer Science
Volume134
Issue number15
DOIs
Publication statusPublished - 15 Apr 2017

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Carbon Nanotubes
Polysulfones
Silver
Carbon nanotubes
Nanocomposites
Membranes
Fabrication
Fluxes
Bovine Serum Albumin
Fouling
Scanning electron microscopy
Water
Composite membranes
Tensile testing
Hydrophilicity
Angle measurement
Impregnation
Nanotubes
Contact angle
Strength of materials

Keywords

  • applications
  • graphene and fullerenes
  • membranes
  • nanotubes

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Fabrication of polysulfone nanocomposite membranes with silver-doped carbon nanotubes and their antifouling performance. / Khalid, Arsalan; Ibrahim, Ahmed; Al-Hamouz, Othman Charles S; Laoui, Tahar; Benamor, Abdelbaki; Atieh, Muataz.

In: Journal of Applied Polymer Science, Vol. 134, No. 15, 44688, 15.04.2017.

Research output: Contribution to journalArticle

Khalid, Arsalan ; Ibrahim, Ahmed ; Al-Hamouz, Othman Charles S ; Laoui, Tahar ; Benamor, Abdelbaki ; Atieh, Muataz. / Fabrication of polysulfone nanocomposite membranes with silver-doped carbon nanotubes and their antifouling performance. In: Journal of Applied Polymer Science. 2017 ; Vol. 134, No. 15.
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