Novel Composite Membranes for Sustainable CO2 Separation

Researchers at Sharif University of Technology demonstrated a novel mixed-matrix composite membrane (MMCM) based on acrylated polyurethane (APU) and UiO-66 nanoparticles to separate CO2/N2 mixture. In this research, UiO-66 and functionalized UiO-66 including NH2-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 20 days. Incorporation of UiO-66 and its functionalized forms increased simultaneously permeability and CO2/N2 selectivity, which were indeed superior in comparison with those of MMCMs reported previously. GMA-UiO-66-filled MMCM displayed a CO2 permeance of 14.5 Barrer and a CO2/N2 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 CO2 separations.

The results of this research, pursued by Akbar Shojaei, Professor at the Department of Chemical and Petroleum Engineering and Hossein Molavi, PhD student at the Institute for Nanoscience and Nanotechnology (INST), are published in the journal of ACS Applied Materials & Interfaces, published by American Chemical Society, under the title of “Mixed-Matrix Composite Membranes Based on UiO-66-derived MOFs for CO2 Separation”. The journal focuses on publishing works introducing specific applications for newly-discovered materials and interfacial processes developed by chemists, engineers, physicists and biologists.

Prof. Shojaei’s research interests include Processing and Manufacturing of Multicomponent Polymeric Systems (PMMPS), Structure-Property Relationship in Multicomponent Polymeric Systems (SPRMPS), Computational Modeling (CM), and Development of Advanced Multicomponent Systems (DAMS). To find out more about POLYMER COMPOSITES RESEARCH GROUP of SUT, you might visit: http://che.sharif.edu/~pcrg/

 

Keywords:

Gas separation; Metal−organic framework; Mixed-matrix composite membranes; UiO-66; UV-curable acrylate polyurethane

 

Reference:

ACS Appl. Mater. Interfaces, 2019, 11 (9), pp 9448–9461

DOI: 10.1021/acsami.8b20869

 

 

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