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Effect of the ZIF‐8 Distribution in Mixed‐Matrix Membranes Based on Matrimid® 5218‐PEG on CO 2 Separation
Author(s) -
Castro-Muñoz Roberto,
Fíla Vlastimil
Publication year - 2019
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201800499
Subject(s) - membrane , dispersion (optics) , nanoparticle , polymer , materials science , chemical engineering , peg ratio , gas separation , matrix (chemical analysis) , metal organic framework , chromatography , nanotechnology , chemistry , organic chemistry , adsorption , composite material , biochemistry , engineering , finance , physics , optics , economics
In theory, the combination of inorganic materials and polymers may provide a synergistic performance for mixed‐matrix membranes (MMMs); however, the filler dispersion into the MMMs is a crucial technical parameter for obtaining compelling MMMs. The effect of the filler distribution on the gas separation performance of the MMMs based on Matrimid®‐PEG 200 and ZIF‐8 nanoparticles is demonstrated. The MMMs were prepared by two different membrane preparation procedures, namely, the traditional method and non‐dried metal‐organic framework (MOF) method. In CO 2 /CH 4 binary mixtures, the MMMs were tested under fixed conditions and characterized by various methods. Finally, regardless of the MMM preparation procedure, the incorporation of 30 wt % ZIF‐8 nanoparticles allowed to increase the CO 2 permeability in MMMs. The ZIF‐8 dispersion influenced significantly the separation factor.