Anti-fouling polyethersulfone nanofiltration membranes aided by amine-functionalized boron nitride nanosheets with improved separation performance


Vatanpour Sargheın V., Karimi H., Ghazanlou S. I., Mansourpanah Y., Ganjali M. R., Badiei A., ...More

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, vol.8, no.6, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 8 Issue: 6
  • Publication Date: 2020
  • Doi Number: 10.1016/j.jece.2020.104454
  • Journal Name: JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Emerging Sources Citation Index (ESCI), Scopus, CAB Abstracts, Chemical Abstracts Core, Compendex, INSPEC, Veterinary Science Database
  • Keywords: Dye removal, Mixed matrix membranes, Amine-functionalized born nitride, Anti-fouling, Dye rejection, ULTRAFILTRATION MEMBRANES, GRAPHENE OXIDE, HIGH-FLUX, ANTIFOULING PROPERTIES, COMPOSITE MEMBRANES, THIN-FILM, NANOCOMPOSITE, LAYER, ANTIBACTERIAL, NANOPARTICLE
  • Istanbul Technical University Affiliated: No

Abstract

Nowadays, the implementation of a desirable membrane with high permeation and rejection properties in liquid and gas separation processes has become a competitive necessity in water purification and desalination. In this field, nanostructured membranes have enticed many researchers and industrialists to use them. Herein, an amine-functionalized boron nitride (BN) embedded microporous polyethersulfone (AFBN PES) membrane was fabricated to examine the anti-fouling properties and separation performance of mixed matrix membranes (MMMs). Also, fouling parameters such as intrinsic resistance (R-m), pore resistance (R-p), cake resistance (R-c), and total resistance (R-t) were investigated, and a significant improvement in the anti-fouling characteristics of the fabricated MMMs was detected. Surprisingly, water permeation across AFBN PES membrane increased two-fold compared to the bare PES, while its BSA and Reactive Blue 19 dye rejection capability remained over 99 %. Faster solvent-nonsolvent exchange during the preparation of polymeric membrane owing to the presence of AFBN nanosheets enhanced the hydrophilicity, changed the mean pore size, and decreased the surface roughness beyond the creation of larger microvoids in the sub-layer of MMMs.