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Mixed-matrix composite membranes based on uio-66-derived MOFs for CO 2 separation

Molavi, H ; Sharif University of Technology | 2019

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  1. Type of Document: Article
  2. DOI: 10.1021/acsami.8b20869
  3. Publisher: American Chemical Society , 2019
  4. Abstract:
  5. We demonstrated a novel mixed-matrix composite membrane (MMCM) based on acrylated polyurethane (APU) and UiO-66 nanoparticles to separate CO 2 /N 2 mixture. UiO-66 and functionalized UiO-66 including NH 2 -UiO-66 and glycidyl methacrylate (GMA)-UiO-66 were loaded into APU/2-hydroxyethyl methacrylate (APUH) matrix at variable concentrations between 3 and 30 wt %. APUH/GMA-UiO-66 MMCMs exhibited strong adhesion with a support layer of polyester/polysulfone, which was not deteriorated after immersion in water for a long time (20 days). Incorporation of UiO-66 and its functionalized forms increased simultaneously permeability and CO 2 /N 2 selectivity, which were indeed superior in comparison with those of MMCMs reported previously. GMA-UiO-66-filled MMCM displayed a CO 2 permeance of 14.5 Barrer and a CO 2 /N 2 selectivity of 53 at a critical concentration (25 wt %). This attractive separation performance of APUH/UiO-66 offered an exciting platform for the development of composite membranes for sustainable CO 2 separations. © 2019 American Chemical Society
  6. Keywords:
  7. Gas separation ; Mixed-matrix composite membranes ; UV-curable acrylate polyurethane ; Acrylic monomers ; Carbon dioxide ; Composite membranes ; Crystalline materials ; Curing ; Metallic matrix composites ; Organometallics ; Polyurethanes ; Separation ; Gas separations ; Metal organic framework ; Mixed matrix ; UiO-66 ; UV curable ; Gas permeable membranes
  8. Source: ACS Applied Materials and Interfaces ; Volume 11, Issue 9 , 2019 , Pages 9448-9461 ; 19448244 (ISSN)
  9. URL: https://pubs.acs.org/doi/10.1021/acsami.8b20869