Enhanced negative charge of polyamide thin-film nanocomposite reverse osmosis membrane modified with MIL-101(Cr)-Pyz-SO3H

Mehrabi M., Vatanpour Sargheın V., Teber O. O., Masteri-Farahani M., Mortazavi S., Abbasi A., ...More

Journal of Membrane Science, vol.664, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 664
  • Publication Date: 2022
  • Doi Number: 10.1016/j.memsci.2022.121066
  • Journal Name: Journal of Membrane Science
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aqualine, Biotechnology Research Abstracts, Chemical Abstracts Core, Chimica, Compendex, EMBASE, Food Science & Technology Abstracts, INSPEC, Metadex, Pollution Abstracts, DIALNET
  • Keywords: RO membrane, Desalination Metal organic frameworks, Interfacial polymerization, MIL-101(Cr)-pyz-SO3H NPs, Hydrophilicity
  • Istanbul Technical University Affiliated: Yes


© 2022 Elsevier B.V.Negatively charged MIL-101(Cr)-Pyz-SO3H nanoparticles (NPs), with several concentrations (0.001–0.02 wt%), were used as a hydrophilic and charge modifier to make a high performance thin-film nanocomposite reverse osmosis membrane (TFC RO) through the interfacial polymerization between 1,3-phenylenediamine (MPD) and trimesoyl chloride (TMC) monomers. Surface analyses revealed smoother surfaces and higher hydrophilicity for the modified membranes. The zeta potential investigation approved rising the negative surface charge of MIL-101(Cr)-Pyz-SO3H NPs embedded RO membranes. The desalination performance displayed that 0.005 wt% MIL/RO indicated the most incredible separation efficiency for NaCl (98.05%). The desalination performance of seawater was also studied. Observations showed that 0.005 wt% MIL/RO means the best separation efficiency for seawater desalination (94.46%). Water flux for the modified membranes improved and reached the maximum value of 41.4 L/m2.h in 0.005 wt% MIL-101(Cr)-Pyz-SO3H TFC RO membrane. The fouling resistance of the membranes was identified by filtration of humic acid (HA)/NaCl solution. The obtained results demonstrated that modified membranes improved fouling resistance, and the highest fouling resistance was recorded for 0.005 wt% MIL-101(Cr)-Pyz-SO3H TFC RO membrane.