Mixed matrix membranes comprising of matrimid and mesoporous COK-12: Preparation and gas separation properties

Khan, Asim Laeeq; Sree, Sreeprasanth P.; Martens, Johan A.; Raza, Muhammad Tayub; Vankelecom, Ivo F.J.

doi:10.1016/j.memsci.2015.08.008

Cited by 41 publications

(33 citation statements)

References 41 publications

(51 reference statements)

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“…The membranes showed enhanced permeability without any decrease in selectivity. Recently, Khan et al used COK-12 type mesoporous silica particles in MMMs leading to faster diffusion of penetrant gases for higher gas permeabilities with slight decrease in selectivity [22]. The higher permeabilities of the membranes were ascribed to more porosities of the fillers.…”

Section: Introductionmentioning

confidence: 99%

Mixed matrix membranes based on polysulfone and rice husk extracted silica for CO2 separation

Waheed

Mushtaq

Tabassum

et al. 2016

Separation and Purification Technology

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Section: Introductionmentioning

confidence: 99%

Mixed matrix membranes based on polysulfone and rice husk extracted silica for CO2 separation

Waheed

Mushtaq

Tabassum

et al. 2016

Separation and Purification Technology

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“…This behavior could be associated to the compression phenomena of the polymer matrix thereby a reduction of the segmental motions and the amount of free volume leading to a corresponding reduction of penetrant diffusion . According to the literature, the vast majority of glassy polymers show the trend to decreasing permeability by increasing upstream pressure due to the decreasing solubility as was reported by Ismail and Lorna . This behavior is represented by the dual‐mode sorption model widely used in glassy polymers that combines Henry's law and Langmuir expressions .…”

Section: Resultsmentioning

confidence: 87%

Effect of chemically modified clinoptilolite on the thermal, morphological, and gas separation properties of mixed matrix membranes

León

Meléndez‐Ortiz

Hernández-Silva

et al. 2017

J of Applied Polymer Sci

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Mixed matrix membranes (MMM) based on polysulfone and chemically modified clinoptilolite were prepared. Clinoptilolite enriched with Ca2+, K+, and Na+ by ion exchange at two test temperatures was prepared. Chemical composition was monitored by energy dispersive X‐ray spectroscopy. X‐ray diffraction, thermogravimetric analysis, and N2 adsorption–desorption isotherms were also performed. Thermal and morphological properties of MMM were evaluated. CH4/CO2 gas mixture permeability tests at different upstream pressure were carried out. Type of exchanged cation in modified clinoptilolite affected the CO2 permeability. An improvement on the CO2/CH4 selectivity values in the MMM compared to the polymeric membrane was appreciated. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45659.

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“…When the measurement was conducted from 25 ∘ C to 55 ∘ C, the CO 2 permeance of MMHFM increased about 56% and about 50% for pure Ultem HFM. The increase in testing temperature not only accelerated the gas diffusion rate but also promoted polymer chain mobility, which lowered the required activation energy for gas permeation and thus increased gas permeance [36]. However, the ideal selectivity decreased with increasing temperature.…”

Section: Effect Of Testing Temperature On Membrane Performancementioning

confidence: 99%

Fabrication of Functionalized MOFs Incorporated Mixed Matrix Hollow Fiber Membrane for Gas Separation

Zhu

Xiao

Cao

2017

Journal of Chemistry

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The metal-organic framework (MOFs) of MIL-53 was functionalized by aminosilane grafting and then incorporated into Ultem®1000 polymer matrix to fabricate mixed matrix hollow fiber membrane (MMHFM) with high separation performance. SEM, XRD, and TGA were performed to characterize the functionalized MIL-53 and prepared MMHFM. The filler particles were embedded in membrane successfully and dispersed well in the polymer matrix. The incorporation of MOFs endowed MMHFM better thermal stability. Moreover, effects of solvent ratio in spinning dope, spinning condition, and testing temperature on gas separation performance of MMHFM were investigated. By optimizing dope composition, air gap distance, and bore fluid composition, MMHFM containing functionalized MIL-53 achieved excellent gas permeance and CO2/N2selectivity. The CO2permeance increased from 12.2 GPU for pure Ultem HFM to 30.9 GPU and the ideal CO2/N2selectivity was enhanced from 25.4 to 34.7 simultaneously. Additionally, gas permeance increased but the selectivity decreased with the temperature increase, which followed the solution-diffusion based transport mechanism.

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Mixed matrix membranes comprising of matrimid and mesoporous COK-12: Preparation and gas separation properties

Cited by 41 publications

References 41 publications

Mixed matrix membranes based on polysulfone and rice husk extracted silica for CO2 separation

Mixed matrix membranes based on polysulfone and rice husk extracted silica for CO2 separation

Effect of chemically modified clinoptilolite on the thermal, morphological, and gas separation properties of mixed matrix membranes

Fabrication of Functionalized MOFs Incorporated Mixed Matrix Hollow Fiber Membrane for Gas Separation

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