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Ionic Liquids as the MOFs/Polymer Interfacial Binder for Efficient Membrane Separation
- Source :
- ACS Applied Materials & Interfaces. 8:32041-32049
- Publication Year :
- 2016
- Publisher :
- American Chemical Society (ACS), 2016.
-
Abstract
- Obtaining strong interfacial affinity between filler and polymer is critical to the preparation of mixed matrix membranes (MMMs) with high separation efficiency. However, it is still a challenge for micron-sized metal organic frameworks (MOFs) to achieve excellent compatibility and defect-free interface with polymer matrix. Thin layer of ionic liquid (IL) was immobilized on micron-sized HKUST-1 to eliminate the interfacial nonselective voids in MMMs with minimized free ionic liquid (IL) in polymer matrix, and then the obtained IL decorated HKUST-1 was incorporated into 4,4'-(hexafluoroisopropylidene)diphthalic anhydride-2,3,5,6-tetramethyl-1,3-phenyldiamine (6FDA-Durene) to fabricate MMMs. Acting as a filler/polymer interfacial binder, the favorable MOF/IL and IL/polymer interaction can facilitate the enhancement of MOF/polymer affinity. Compared to MMM with only HKUST-1 incorporation, MMM with IL decorated HKUST-1 succeeded in restricting the formation of nonselective interfacial voids, leading to an increment in CO
- Subjects :
- chemistry.chemical_classification
Mixed matrix
Materials science
Thin layer
02 engineering and technology
Polymer
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Membrane technology
chemistry.chemical_compound
Membrane
Chemical engineering
chemistry
Ionic liquid
Polymer chemistry
General Materials Science
Metal-organic framework
0210 nano-technology
Polymer interaction
Subjects
Details
- ISSN :
- 19448252 and 19448244
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- ACS Applied Materials & Interfaces
- Accession number :
- edsair.doi.dedup.....d97631ce652101afa0ab5418e45ec61f