Preparation of CO 2 selective composite membranes using Pebax/CuBTC/PEG-ran-PPG ternary system

Khosravi, Tayebeh; Omidkhah, Mohammadreza

doi:10.1016/j.jechem.2016.10.013

Cited by 20 publications

(13 citation statements)

References 54 publications

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“…This would reduce the formation of rigidified polymer area around the particles or sieve-in-a-cage defects, a major problem that is more frequent in glassy polymers. Separation performance of various fillers in PEBA-based MMMs was reported previously, such as ZIF-300, 19 MOF-801, 20 ZIF-7, 21 SAPO-34, 22 ZIF-8, [23][24][25][26] , MIL-101(Cr), 26 carbon nanotubes, 27,28 NaX, 29,30 TiO 2 , 31 ZSM-5, 32 Fe 2 O 3 , 33 UiO-66, 26,34 CuBTC, [15][16][17] and ZIF-67. 35 Since ZIF-67 and ZIF-8 have similar size-sieving pore diameters, comparing their separation performance would reveal other influential factors in their structure.…”

mentioning

confidence: 85%

“…Common solvothermal synthesis methods produce the average size of the CuBTC crystals in the 10–50 μm range. Therefore, most MMMs, fabricated by the incorporation of CuBTC particles, are not in the thin layer ranges 14–18 …”

Section: Introductionmentioning

confidence: 99%

“…Therefore, most MMMs, fabricated by the incorporation of CuBTC particles, are not in the thin layer ranges. [14][15][16][17][18] This study aimed to prepare composite membranes with high selectivity and permeance for CO 2 /CH 4 separation by incorporating CuBTC, ZIF-8, and ZIF-67 particles. PEBA 1657 (shortly PEBA), a polyether block amide containing 40% polyamide (PA) and 60% polyethylene oxide (PEO), was used as the polymer material.…”

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confidence: 99%

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Comparison of different MOF fillers on CO₂ removal performance of supported PEBA mixed matrix membranes

Erfani

Asghari

2020

Greenhouse Gases

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Poly(amide-6-b-ethylene oxide)(PEBA) mixed matrix membranes (MMMs) containing different metal-organic frameworks (MOFs) of CuBTC, ZIF-8, and ZIF-67 have been dip-coated on asymmetric PAN supports. To optimize the ideal skin-layer parameters, MOF loadings of 5, 15, 25, and 35 wt% were applied. The synthesized MOFs and MMMs were structurally characterized using X-ray diffraction (XRD), Fourier-transform infrared (FTIR), and field emission scanning electron microscopy (FESEM). The average sizes of the synthesized ZIF-8, ZIF-67, and CuBTC have been determined about 100, 400, and 60-500 nm, respectively. Permeability tests of the MMMs performed using 12-bar feed streams of pure CO 2 , CH 4 , and N 2 , showed 200-338% enhancements of CO 2 permeability and up to a 43% increase in CO 2 /CH 4 selectivity relative to the neat PEBA membrane. The membrane performances were also examined by the mixed gas feeds of CO 2 :CH 4 (10:90).

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confidence: 85%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Comparison of different MOF fillers on CO₂ removal performance of supported PEBA mixed matrix membranes

Erfani

Asghari

2020

Greenhouse Gases

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“…The PEG‐ ran ‐PPG additive thereby resulted in higher permeability increases (+705% for random vs. +545% for block distribution) . Also in mixed matrix membranes, addition of PEG‐ ran ‐PPG resulted in a strong synergistic effect on permeance and selectivity . Overall, great tuning opportunities of gas transport properties of Pebax have thus been demonstrated in literature.…”

Section: Introductionmentioning

confidence: 97%

Blending PPO‐based molecules with Pebax MH 1657 in membranes for gas separation

Didden

Thür

Volodin

et al. 2018

J of Applied Polymer Sci

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This work explores the possibilities to blend block copolymers, i.e., Pebax MH 1657, with a variety of cheap poly(propylene oxide)‐rich molecules which could potentially play a double role in the resulting membranes as dispersing/stabilizing agents in multi‐component casting solutions and as a gas transport medium in the final membrane. These membranes were prepared by solution casting and were characterized by differential scanning calorimetry, scanning electron microscopy, atomic force microscopy, X‐ray diffraction, density measurements, and Fourier transform infrared‐attenuated total reflection, while additive incorporation was also studied with theoretical calculations. Gas permeation measurements showed that this approach resulted in increased permeabilities at the expense of mixed‐gas selectivity. An interpretation of the blend structure was finally made using gas transport models. The compatibility of these additives with the synthesis of selective gas separation membranes may enable a potential double role in membrane synthesis, i.e., as stabilizing agents in membrane synthesis and as a gas transport medium in the final membrane. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46433.

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“…In this context, various fillers such as zeolites [6][7][8], graphene oxide (GO) [9][10][11][12][13], carbon nanotubes (CNTs) [14,15], SiO 2 [6,16], zinc oxide [17], and metal-organic frameworks (MOFs) including zeolitic imidazolate frameworks (ZIFs) [6,[18][19][20], Material Institute Lavoisier (MIL)-53 [21,22], MIL-101 [19,23], Universitetet i Oslo (UiO)-66 [19,24], and copper(II) benzene-1,3,5-tricarboxylate (CuBTC) [25] were used to improve pure polymeric membrane gas separation performance. In contrast, compatibility between polymers and fillers is usually poor due to differences in their characteristics [2].…”

Section: Introductionmentioning

confidence: 99%

CH₄‐Selective Mixed‐Matrix Membranes Containing Functionalized Silica for Natural Gas Purification

et al. 2020

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Mixed-matrix membranes were prepared by incorporating functionalized silica nanoparticles (SNPs) into the poly(ether-block-amide). The gas permeation properties of membranes were investigated for the separation of N 2 and CO 2 from CH 4. Results revealed that chemical modification of SNPs and incorporation of the carboxylic groups on its surface had a strong interaction with the polymer matrix and improved the distribution of the nanofiller in the membrane matrix. According to the gas permeation experiments at various SNPs loadings and feed pressures, different trends were observed for the permeability and selectivity. Incorporation of the modified-SNPs nanofiller into the membrane enhanced the CH 4 permeability, as well as the CH 4 /N 2 and CO 2 /N 2 selectivities.

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Preparation of CO 2 selective composite membranes using Pebax/CuBTC/PEG-ran-PPG ternary system

Cited by 20 publications

References 54 publications

Comparison of different MOF fillers on CO₂ removal performance of supported PEBA mixed matrix membranes

Comparison of different MOF fillers on CO₂ removal performance of supported PEBA mixed matrix membranes

Blending PPO‐based molecules with Pebax MH 1657 in membranes for gas separation

CH₄‐Selective Mixed‐Matrix Membranes Containing Functionalized Silica for Natural Gas Purification

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Preparation of CO 2 selective composite membranes using Pebax/CuBTC/PEG-ran-PPG ternary system

Cited by 20 publications

References 54 publications

Comparison of different MOF fillers on CO2 removal performance of supported PEBA mixed matrix membranes

Comparison of different MOF fillers on CO2 removal performance of supported PEBA mixed matrix membranes

Blending PPO‐based molecules with Pebax MH 1657 in membranes for gas separation

CH4‐Selective Mixed‐Matrix Membranes Containing Functionalized Silica for Natural Gas Purification

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Product

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Comparison of different MOF fillers on CO₂ removal performance of supported PEBA mixed matrix membranes

Comparison of different MOF fillers on CO₂ removal performance of supported PEBA mixed matrix membranes

CH₄‐Selective Mixed‐Matrix Membranes Containing Functionalized Silica for Natural Gas Purification