Fabrication of MMMs with improved gas separation properties using externally-functionalized MOF particles

Venna, Surendar R.; Lartey, Michael; Li, Tao; Spore, Alex; Kumar, Santosh; Nulwala, Hunaid; Luebke, David R.; Rosi, Nathaniel L.; Albenze, Erik

doi:10.1039/c4ta05225k

Cited by 297 publications

(211 citation statements)

References 51 publications

(70 reference statements)

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“…In terms of permeability, the 8 wt % ns-Cu-BDC/PSf MMMs exhibited a continuous decrease in CO 2 permeability from 4.1 (3 bar) to 2.8 (7.5 bar) Barrer with increasing pressure, whereas the polymer retained the CO 2 permeability at 5.8 Barrer in the range of pressures tested. Similar studies on filler morphology effects on MMM performance were also performed by Z. Kang, et al [252] Work to improve the MOF/polymer interface was continued in 2015 by S. R. Venna, et al when they modified the surface of (Zr) UiO-66-NH2 MOF particles to improve its interaction with the polymer matrix, Matrimid ® [254]. The MOF is composed of Zr6O4(OH)4 clusters bridged with 2-amino-1,4-benzenedicarboxylates that form triangularly shaped pore apertures of 0.6 nm.…”

Section: Mofs In Mmmsmentioning

confidence: 77%

“…The results indicated that CO2 permeability increased largely for all MMMs with respect to the polymer, but only the MMMs containing the neat and the IPA-functionalized MOF exhibited increased CO2/N2 selectivity relative to the polymer, which was attributed to the formation of a defect-free interface between the MOF and the polymer and the improved surface diffusion of CO2, since it adsorbed more favorably to the MOF than did N2. Work to improve the MOF/polymer interface was continued in 2015 by S. R. Venna, et al when they modified the surface of (Zr) UiO-66-NH 2 MOF particles to improve its interaction with the polymer matrix, Matrimid ® [254]. The MOF is composed of Zr 6 O 4 (OH) 4 clusters bridged with 2-amino-1,4-benzenedicarboxylates that form triangularly shaped pore apertures of 0.6 nm.…”

Section: Mofs In Mmmsmentioning

confidence: 99%

“…Since the first examples of the preparation of MOF-based MMMs, the aim was to disperse perfectly the crystallites in the polymer matrix without aggregation and voids at the interface. Several strategies have been used to attempt to achieve this goal, e.g., priming the crystals with dilute polymer solutions [165], extensive sonication, chemical functionalization of the organic ligands of the MOFs [250,254], and the use of porous single molecular cages in the form of metal organic polyhedras or MOPs [126]. Each of them achieved a certain degree of success that ultimately relied on the physical interaction between the distinct phases (MOF-polymer).…”

Section: Mofs In Mmmsmentioning

confidence: 99%

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Origins and Evolution of Inorganic-Based and MOF-Based Mixed-Matrix Membranes for Gas Separations

et al. 2016

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Abstract:Gas separation for industrial, energy, and environmental applications requires low energy consumption and small footprint technology to minimize operating and capital costs for the processing of large volumes of gases. Among the separation methods currently being used, like distillation, amine scrubbing, and pressure and temperature swing adsorption, membrane-based gas separation has the potential to meet these demands. The key component, the membrane, must then be engineered to allow for high gas flux, high selectivity, and chemical and mechanical stability at the operating conditions of feed composition, pressure, and temperature. Among the new type of membranes studied that show promising results are the inorganic-based and the metal-organic framework-based mixed-matrix membranes (MOF-MMMs). A MOF is a unique material that offers the possibility of tuning the porosity of a membrane by introducing diffusional channels and forming a compatible interface with the polymer. This review details the origins of these membranes and their evolution since the first inorganic/polymer and MOF/polymer MMMs were reported in the open literature. The most significant advancements made in terms of materials, properties, and testing conditions are described in a chronological fashion.

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Section: Mofs In Mmmsmentioning

confidence: 77%

Section: Mofs In Mmmsmentioning

confidence: 99%

Section: Mofs In Mmmsmentioning

confidence: 99%

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Origins and Evolution of Inorganic-Based and MOF-Based Mixed-Matrix Membranes for Gas Separations

et al. 2016

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“…UiO-66 metal organic framework (MOF) was modified with several organic functional groups such as amine, phenylacetyl chloride, decanoyl chloride, succinic anhydride and improved the interface properties. 16,57,58 Ti-exchanged UiO-66 MOFs were used to increase the interface and performance of the MMMs using PIM-1 as the polymer matrix. 59 MIL-based MOFs were also modified with several chemical surface groups and metal exchange methods which resulted in the improved interaction between the MOF and the polymer.…”

Section: Modification Of the Fillers And Casting Conditionsmentioning

confidence: 99%

Mixed Matrix Membranes for Gas Separation Applications

Carreon¹,

Dahe²,

Feng³

et al. 2017

Membranes for Gas Separations

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Mixed matrix membranes (MMMs) have gained lot of interest in the research community over the last few years in order to overcome the performance trade-off shown by the polymeric membranes. An MMM utilizes the benefits of both polymeric and inorganic materials and has the potential to show very high performance without much increase in the cost of fabrication. But the fabrication of an MMM without conceding the mechanical properties is very challenging. In this chapter, the materials selection and fabrication techniques of MMM in both flat sheet and hollow fiber configurations are discussed. Formation of defects at the interface is one of the biggest challenges in fabricating the MMM. Different techniques used in the literature to compatibilize the polymer and particle were summarized. In addition, the recent progress of MMM for gas separation applications and performance prediction models were provided in detail.

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“…An interfacial void-free MMM with high gas separation performance has been achieved [31]. The last but also important strategy is to eliminate the formation of non-selective interfacial voids via in-situ polymerisation [32][33][34]. Also, introducing a cross-linkable polymer (e.g.…”

Section: Introductionmentioning

confidence: 99%

Surface-etched halloysite nanotubes in mixed matrix membranes for efficient gas separation

Lin

Wang

et al. 2017

Separation and Purification Technology

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, Surfaceetched halloysite nanotubes in mixed matrix membranes for efficient gas separation, Separation and Purification Technology (2016), doi: http://dx.doi.org/10.1016/j.seppur. 2016.09.015 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractPossessing the advantages of both polymeric membranes and the specific inorganic nanoparticles or nanotubes, mixed matrix membranes (MMMs) have captured the imagination of researchers for a possible technological breakthrough for efficient gas separation. However, it is still very challenging to achieve defect-free interface between fillers and polymer matrix. In this study, the naturally abundant and low cost halloysite nanotubes (HNTs) were applied as fillers for MMMs synthesis. To improve the filler dispersion and filler-matrix interface affinity, the raw HNTs were modified by either alkali etching or (3-Aminopropyl) triethoxysilane grafting. After surface etching, the defect holes were formed on the surfaces of etched-HNTs, resulting in the rougher HNT walls and significant increment of surface area and CO 2 adsorption capacity.

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Fabrication of MMMs with improved gas separation properties using externally-functionalized MOF particles

Abstract: MOF particles are surface-functionalized to achieve an improved polymer–particle interaction in mixed matrix membranes. Compared to the neat polymer, the membranes have 3 times higher CO2 permeability with ~25% improvement in CO2/N2 selectivity.

Cited by 297 publications

References 51 publications

Origins and Evolution of Inorganic-Based and MOF-Based Mixed-Matrix Membranes for Gas Separations

Origins and Evolution of Inorganic-Based and MOF-Based Mixed-Matrix Membranes for Gas Separations

Mixed Matrix Membranes for Gas Separation Applications

Surface-etched halloysite nanotubes in mixed matrix membranes for efficient gas separation

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