Fabrication of a Substituted Imidazolate Material 1 (SIM-1) membrane using post synthetic modification (PSM) for pervaporation of water/ethanol mixtures

Marti, Anne M.; Tran, Daniel; Balkus, Kenneth J.

doi:10.1007/s10934-015-0005-y

Cited by 18 publications

(11 citation statements)

References 51 publications

(56 reference statements)

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“…An alternative approach, termed postsynthetic polymerization (PSP), uses a reactive handle on the MOF that can combine with monomers to form an interstitial polymer matrix around the MOF particles. PSP has been successfully used to prepare membranes and stable, highly connected monoliths …”

Section: Methodsmentioning

confidence: 99%

Nylon–MOF Composites through Postsynthetic Polymerization

et al. 2019

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Hybridization of metal–organic frameworks (MOFs) and polymers into composites yields materials that display the exceptional properties of MOFs with the robustness of polymers. However, the realization of MOF–polymer composites requires efficient dispersion and interactions of MOF particles with polymer matrices, which remains a significant challenge. Herein, we report a simple, scalable, bench‐top approach to covalently tethered nylon–MOF polymer composite materials through an interfacial polymerization technique. The copolymerization of a modified UiO‐66‐NH2 MOF with a growing polyamide fiber (PA‐66) during an interfacial polymerization gave hybrid materials with up to around 29 weight percent MOF. The covalent hybrid material demonstrated nearly an order of magnitude higher catalytic activity for the breakdown of a chemical warfare simulant (dimethyl‐4‐nitrophenyl phosphate, DMNP) compared to MOFs that are non‐covalently, physically entrapped in nylon, thus highlighting the importance of MOF–polymer hybridization.

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Section: Methodsmentioning

confidence: 99%

Nylon–MOF Composites through Postsynthetic Polymerization

et al. 2019

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“…ZIF-94/SIM-1 has already been used as membrane material in some publications. Marti et al [40] reported the fabrication of SIM-1 membranes by post synthetic modification of ZIF 8 particles for the separation of water from water/ethanol mixtures. The membrane fabricated using nano SIM-1 crystals separated water completely from the mixture.…”

Section: Introductionmentioning

confidence: 99%

High performance mixed matrix membranes (MMMs) composed of ZIF-94 filler and 6FDA-DAM polymer

Etxeberría-Benavides

David

Johnson

et al. 2018

Journal of Membrane Science

108

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A R T I C L E I N F O Keywords:Metal organic frameworks ZIF-94 Mixed matrix membrane CO 2 capture A B S T R A C T Carbon capture and storage (CCS) using membranes for the separation of CO 2 holds great promise for the reduction of atmospheric CO 2 emissions from fuel combustion and industrial processes. Among the different process outlines, post-combustion CO 2 capture could be easily implemented in existing power plants. However, for this technology to become viable, new membrane materials have to be developed. In this article we present the development of high performance mixed matrix membranes (MMMs) composed of ZIF-94 filler and 6FDA-DAM polymer matrix. The CO 2 /N 2 separation performance was evaluated by mixed gas tests (15CO 2 :85N 2 ) at 25°C and 1-4 bar transmembrane pressure difference. The CO 2 membrane permeability was increased by the addition of the ZIF-94 particles, maintaining a constant CO 2 /N 2 selectivity of~22. The largest increase in CO 2 permeability of~200% was observed for 40 wt% ZIF-94 loading, reaching the highest permeability (2310 Barrer) at similar selectivity among 6FDA-DAM MMMs reported in literature. For the first time, the ZIF-94 metal organic framework crystals with particle size smaller than 500 nm were synthesized using nonhazardous solvent (tetrahydrofuran and methanol) instead of dimethylformamide (DMF) in a scalable process. Membranes were characterized by three non-invasive image techniques, i.e. SEM, AFM and nanoscale infrared imaging by scattering-type scanning near-field optical microscopy (s-SNOM). The combination of these techniques demonstrates a very good dispersion and interaction of the filler in the polymer layer, even at very high loadings.

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“…Inspired by this strategy, some high performance MOFs membranes by post-synthetic modification such as post-modified SIM-1 membrane for pervaporation and post-functionalized ZIF-90 membrane for H 2 separation have been reported [34,35] . Xin et al .…”

Section: Introductionmentioning

confidence: 99%