Preparation, characterization and performance enhancement of polysulfone ultrafiltration membrane using PBI as hydrophilic modifier

EREN E., SARIHAN A., EREN B., GÜMÜŞ H., Kocak F.

Journal of Membrane Science, cilt.475, ss.1-8, 2015 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 475
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.memsci.2014.10.010
  • Dergi Adı: Journal of Membrane Science
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1-8
  • Anahtar Kelimeler: Blend membrane, Hydrophilic modification, Polybenzimidazole, Polysulfone, Ultrafiltration
  • Bilecik Şeyh Edebali Üniversitesi Adresli: Evet

Özet

In this study, new type of polysulfone (PSf) composite ultrafiltration membranes were prepared by blending PSf with poly[2,2'-(m-phenylene)-5,5'-dibenzimidazole] (PBI). The prepared membranes were characterized by water contact angle, SEM, FTIR, DSC, TG/DTG and cross-flow filtration techniques. We demonstrated that membrane characteristics such as porosity, hydrophilicity and thermal stability of PSf can be significantly enhanced with the incorporation of PBI. The composite membranes exhibited comparable bovine serum albumin (BSA) retention (69% vs. 36%) and water fluxes (355 vs. 228L/m2h) against pristine PSf membranes. •Modified membranes had more hydrophilic surface and higher porosity than PSf membrane.