Influence of Filler Pore Structure and Polymer on the Performance of MOF-Based Mixed-Matrix Membranes for CO2 Capture
Anahid Sabetghadam (Student TU Delft)
X. Liu (TU Delft - ChemE/Catalysis Engineering)
Marvin Benzaqui (Ecole Normale Supérieure)
Effrosyni Gkaniatsou (Institut Lavoisier de Versailles)
Angelica Orsi (University of St Andrews)
Magdalena M. Lozinska (University of St Andrews)
Clémence Sicard (Institut Lavoisier de Versailles)
Timothy Johnson (Johnson Matthey Technology Center)
Nathalie Steunou (Institut Lavoisier de Versailles)
Paul A. Wright (University of St Andrews)
Christian Serre (Ecole Normale Supérieure)
Jorge Gascon (TU Delft - ChemE/Catalysis Engineering, King Abdullah University of Science and Technology)
F Kapteijn (TU Delft - ChemE/Catalysis Engineering)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
To gain insight into the influence of metal-organic framework (MOF) fillers and polymers on membrane performance, eight different composites were studied by combining four MOFs and two polymers. MOF materials (NH2-MIL-53(Al), MIL-69(Al), MIL-96(Al) and ZIF-94) with various chemical functionalities, topologies, and dimensionalities of porosity were employed as fillers, and two typical polymers with different permeability-selectivity properties (6FDA-DAM and Pebax) were selected as matrices. The best-performing MOF-polymer composites were prepared by loading 25wt% of MIL-96(Al) as filler, which improved the permeability and selectivity of 6FDA-DAM to 32 and 10%, while for Pebax they were enhanced to 25 and 18%, respectively. The observed differences in membrane performance in the separation of CO2 from N2 are explained on the basis of gas solubility, diffusivity properties, and compatibility between the filler and polymer phases.