Recent advances of inorganic fillers in mixed matrix membrane for gas separation

Goh, Pei Sean; Ismail, Ahmad Fauzi; Sanip, Suhaila M.; Ng, Be Cheer; Aziz, Madzlan

doi:10.1016/j.seppur.2011.07.042

Cited by 596 publications

(362 citation statements)

References 198 publications

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“…In a MMM, filler particles are dispersed in a polymer matrix that should improve the properties of the composite relative to the pure polymer [6,16]. Recently metal organic frameworks (MOFs) have been identified as promising filler materials for the preparation of MMMs [17]. They have high surface area and pore volume and their porosity is in general higher than that of their earlier considered inorganic counterpart, zeolites.…”

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

107

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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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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

107

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“…[ 6 ] Generally, low-fl ux glassy polymers are preferred as polymer matrix to highly permeable, but poorly selective, rubbery counterparts. [ 7 ] With regard to the fi ller, a broad range of materials have been explored, [ 8 ] including zeolites, [ 9 ] clays, [ 10 ] mesoporous silicas and different carbon materials. [ 11 ] Metal organic frameworks (MOFs) are recently attracting a lot of attention as potential fi ller materials for MMMs since the pioneering work by Yehia et al [ 12 ] These crystalline nanostructures can be synthesised at mild conditions and display high surface areas and large pore volumes, generally in the micropore range.…”

Section: Introductionmentioning

confidence: 99%

Visualizing MOF Mixed Matrix Membranes at the Nanoscale: Towards Structure‐Performance Relationships in CO₂/CH₄ Separation Over NH₂‐MIL‐53(Al)@PI

Ródenas

Dalen

García-Pérez

et al. 2013

Adv Funct Materials

287

164

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Mixed matrix membranes (MMMs) composed of metal organic framework (MOF) fillers embedded in a polymeric matrix represent a promising alternative for CO2 removal from natural gas and biogas. Here, MMMs based on NH2‐MIL‐53(Al) MOF and polyimide are successfully synthesized with MOF loadings up to 25 wt% and different thicknesses. At 308 K and ΔP = 3 bar, the incorporation of the MOF filler enhances CO2 permeability with respect to membranes based on the neat polymer, while preserving the relatively high separation factor. The rate of solvent evaporation after membrane casting proves key for the final configuration and dispersion of the MOF in the membrane. Fast solvent removal favours the contraction of the MOF structure to its narrow pore framework configuration, resulting in enhanced separation factor and, particularly, CO2 permeability. The study reveals an excellent filler‐polymer contact, with ca. 0.11% void volume fraction, for membranes based on the amino‐functionalized MOF, even at high filler loadings (25 wt%). By providing precise and quantitative insight into key structural features at the nanoscale range, the approach provides feedback to the membrane casting process and therefore it represents an important advancement towards the rational design of mixed matrix membranes with enhanced structural features and separation performance.

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“…They are often used as nanofillers, in a similar way as for example, titania or zeolites [148]. A schematic representation is shown in Figure 8 [136]. In some cases, modified nanotubes were used as filler material, as, for example, reported by Mansourpanah et al [149] for the use of polycaprolactone-modified multiwall carbon nanotubes as additives for synthesis of PES membranes.…”

Section: Membranes Enhanced With Carbon Nanotubes For Advanced Separamentioning

confidence: 99%

“…Such membranes fit into the approach of "mixed matrix membranes," for which a wide range of (inorganic) additives is used in a polymeric membrane matrix [136]. Sears et al [137] distinguish two types of carbon nanotubes-derived membranes: (i) CNT bucky-papers, a nonwoven, paper like structure of randomly entangled CNTs Figure 5: SEM images of a 1%-aligned polymer-nanotubes composite (a), and a 4% random composite.…”

Section: Membranes Enhanced With Carbon Nanotubes For Advanced Separamentioning

confidence: 99%

“…Goh et al [136] reviewed recent advances in mixed matrix membranes for gas separation and described carbon nanotubes as one among three emerging fillers for membranes (the two others are metal-organic frameworks and clay-layered silicate). Not surprisingly, the interaction between the two phases is mentioned as one of the key factors for a successful integration; this confirms the analysis made earlier in this paper.…”

Section: Gas Separationmentioning

confidence: 99%

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The Separation Power of Nanotubes in Membranes: A Review

Bruggen

2012

ISRN Nanotechnology

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Research on mixed matrix membranes in which nanoparticles are used to enhance the membrane's performance in terms of flux, separation, and fouling resistance has boomed in the last years. This review probes on the specific features and benefits of one specific type of nanoparticles with a well-defined cylindrical structure, known as nanotubes. Nanotube structures for potential use in membranes are reviewed. These comprise mainly single-wall carbon nanotubes (SWCNTs) and multiwall carbon nanotubes (MWCNTs), but also other structures and materials, which are less studied for membrane applications, can be used. Important issues related to polymer-nanotube interactions such as dispersion and alignment are outlined, and a categorization is made of the resultant membranes. Applications are reviewed in four different areas, that is, gas separation, water filtration, drug delivery, and fuel cells.

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Recent advances of inorganic fillers in mixed matrix membrane for gas separation

Cited by 596 publications

References 198 publications

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

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

Visualizing MOF Mixed Matrix Membranes at the Nanoscale: Towards Structure‐Performance Relationships in CO₂/CH₄ Separation Over NH₂‐MIL‐53(Al)@PI

The Separation Power of Nanotubes in Membranes: A Review

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Recent advances of inorganic fillers in mixed matrix membrane for gas separation

Cited by 596 publications

References 198 publications

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

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

Visualizing MOF Mixed Matrix Membranes at the Nanoscale: Towards Structure‐Performance Relationships in CO2/CH4 Separation Over NH2‐MIL‐53(Al)@PI

The Separation Power of Nanotubes in Membranes: A Review

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Visualizing MOF Mixed Matrix Membranes at the Nanoscale: Towards Structure‐Performance Relationships in CO₂/CH₄ Separation Over NH₂‐MIL‐53(Al)@PI