Metal organic framework based mixed matrix membranes: An increasingly important field of research with a large application potential

Zornoza, Beatriz; Téllez, Carlos; Coronas, Joaquı́n; Gascón, Jorge; Kapteijn, Freek

doi:10.1016/j.micromeso.2012.03.012

Cited by 460 publications

(363 citation statements)

References 111 publications

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“…[ 15 ] Several MOF structures have been demonstrated effi cient for gas separation processes. [ 16 ] Notably, promising results were reported for the separation of CO 2 from methane employing MOF-based MMMs, [ 2 ] which opens a research line with potential applications in processes such as the CO 2 removal from natural gas. In particular, we have previously reported on the outstanding performance of the amino-functionalized MIL-53(Al) framework (NH 2 -MIL-53(Al)) in CO 2 capture from CO 2 /CH 4 mixtures.…”

Section: Mof Loading and Framework Confi Gurationmentioning

confidence: 99%

“…The conventional CO 2 removal method, which relies on cryogenic distillation and reversible absorption, such as amine scrubbing, is energy intensive and poses serious environmental concerns. [ 2 ] Since the 1980s, polymeric membranes have rapidly become a competitive alternative gas separation technology. The advantages of membrane over traditional gas separation methods include decreasing production costs and equipment size, low-energy consumption, ease of operation and limited environmental impact, supposing an innovative process intensifi cation strategy.…”

Section: Introductionmentioning

confidence: 99%

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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

Ródenas

Dalen

García-Pérez

et al. 2013

Adv Funct Materials

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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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Section: Mof Loading and Framework Confi Gurationmentioning

confidence: 99%

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

Self Cite

287

164

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“…One common problem encountered for the synthesis of polymer/filler composite membrane is filler-polymer incompatibilities [23]. While this issue is more commonly found in gas separation membrane, incompatibilities between filler and polymer also affect the phase inversion process.…”

Section: Introductionmentioning

confidence: 99%

Effect of addition of two-dimensional ZIF-L nanoflakes on the properties of polyethersulfone ultrafiltration membrane

Low

Razmjou

Wang

et al. 2014

Journal of Membrane Science

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A new two-dimensional zeolitic imidazolate framework with leaf-shaped morphology (ZIF-L) was incorporated into polyethersulfone (PES) ultrafiltration membranes to investigate how the ZIF nanoflakes affect functional membrane properties. The membranes were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), atomic force microscopy (AFM), and contact angle goniometry. The water permeability and molecular weight cut-offs (MWCO) of membranes were also determined under constant pressure filtration. Membrane fouling resistance was characterized under constant flux operation using bovine serum albumin (BSA) as foulant. The modified UF membrane with 0.5% ZIF-L loading showed around 75% increase in water flux without greatly affecting the MWCO. Also, the same membrane showed almost twice the fouling resistance improvement against BSA with more than 80% water flux recovery. The improvement was due to the combined effect of the lower zeta potential of the modified membrane, increased hydrophilicity and reduced surface roughness, which made the attachment of BSA protein on the membrane surface more difficult. These results 2 demonstrate that the addition of 2-dimensional ZIF-L nanoflakes is effective for improving polymer membrane fouling resistance and water flux.

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“…They have exceptional physical properties such as very large surface areas [the highest reported one with 6,411 m 2 /g (Grunker et al, 2014)], high pore volumes (1-4 cm 3 /g), a large variety of pore sizes, and good stabilities. MOFs have been used in a wide range of chemical applications (Mueller et al, 2006) including gas storage and gas separation (Sun et al, 2013;Zornoza et al, 2013;Adatoz et al, 2015;, catalysis (Gascon et al, 2014), sensing (Zhu et al, 2013;Muller-Buschbaum et al, 2015), drug storage, and delivery (Della Rocca et al, 2011;Keskin and Kizilel, 2011;Bag et al, 2016). Gas separation has been the most widely examined application since MOFs offer a large variety in their pore sizes, shapes and chemistries.…”

Section: Introductionmentioning

confidence: 99%

High-Throughput Molecular Simulations of Metal Organic Frameworks for CO2 Separation: Opportunities and Challenges

Eruçar

Keskın

2018

Front. Mater.

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Metal organic frameworks (MOFs) have emerged as great alternatives to traditional nanoporous materials for CO2 separation applications. MOFs are porous materials that are formed by self-assembly of transition metals and organic ligands. The most important advantage of MOFs over well-known porous materials is the possibility to generate multiple materials with varying structural properties and chemical functionalities by changing the combination of metal centers and organic linkers during the synthesis. This leads to a large diversity of materials with various pore sizes and shapes that can be efficiently used for CO2 separations. Since the number of synthesized MOFs has already reached to several thousand, experimental investigation of each MOF at the lab-scale is not practical. High-throughput computational screening of MOFs is a great opportunity to identify the best materials for CO2 separation and to gain molecular-level insights into the structure-performance relationships. This type of knowledge can be used to design new materials with the desired structural features that can lead to extraordinarily high CO2 selectivities. In this mini-review, we focused on developments in high-throughput molecular simulations of MOFs for CO2 separations. After reviewing the current studies on this topic, we discussed the opportunities and challenges in the field and addressed the potential future developments.

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Metal organic framework based mixed matrix membranes: An increasingly important field of research with a large application potential

Cited by 460 publications

References 111 publications

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

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

Effect of addition of two-dimensional ZIF-L nanoflakes on the properties of polyethersulfone ultrafiltration membrane

High-Throughput Molecular Simulations of Metal Organic Frameworks for CO2 Separation: Opportunities and Challenges

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Metal organic framework based mixed matrix membranes: An increasingly important field of research with a large application potential

Cited by 460 publications

References 111 publications

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

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

Effect of addition of two-dimensional ZIF-L nanoflakes on the properties of polyethersulfone ultrafiltration membrane

High-Throughput Molecular Simulations of Metal Organic Frameworks for CO2 Separation: Opportunities and Challenges

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Product

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About

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

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