Separation of nitrogen and oxygen gases by polymeric membrane embedded with magnetic nano-particle


Madaeni S. S. , Enayati E., Vatanpour Sargheın V.

POLYMERS FOR ADVANCED TECHNOLOGIES, vol.22, no.12, pp.2556-2563, 2011 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 22 Issue: 12
  • Publication Date: 2011
  • Doi Number: 10.1002/pat.1800
  • Journal Name: POLYMERS FOR ADVANCED TECHNOLOGIES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2556-2563
  • Keywords: magnetic membrane, polyethersulfone, PDMS, oxygen, nitrogen, gas separation, QUADRUPOLE FIELD, CELL-SEPARATION, AIR, ENRICHMENT, ACCELERATION, CONVECTION, TRANSPORT, FILMS
  • Istanbul Technical University Affiliated: Yes

Abstract

Asymmetric polyethersulfone (PES) micro-porous flat sheet membranes were prepared by the phase inversion method (PIM) and used as the support. PES-PDMS composite membranes were fabricated with coating polydimethylsiloxane on the surface of PES membrane. The FluidMAG-PAD was coated on PES and PES-PDMS membrane to prepare super-paramagnetic membranes for separation of oxygen from nitrogen. Permeance and O-2/N-2 selectivity were evaluated in the absence or presence of external magnetic field. In the absence of external magnetic field, the super-paramagnetic polymer provides larger surface area leading to extended sites for oxygen adsorption. In the presence of magnetic field, the super-paramagnetic particles obtained magnetic property leading to a pronounced interaction with oxygen resulting in elevated selectivity and permeability. Copyright (C) 2011 John Wiley & Sons, Ltd.