The role of tetragonal-metal-organic framework-5 loadings with extra ZnO molecule on the gas separation performance of mixed matrix membrane

Arjmandi, Mehrzad; Pakizeh, Majid; Pirouzram, Omid

doi:10.1007/s11814-014-0315-9

Cited by 23 publications

(8 citation statements)

References 43 publications

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“…MOFs are consisting of coordinated clusters with organic ligands to form a porous network. These materials have high potential for various applications such as separation and catalytic reactions . But, due to the destruction of many MOFs in the humid environment, the applications of MOF‐based mixed matrix membranes (MMMs) were severely limited in aqueous phase separations.…”

Section: Introductionmentioning

confidence: 99%

“…Lately, they explained the concept of unique membranes, named porous matrix membranes (PMMs) based on water‐unstable MOF crystals as a green template. The fabrication process of PMMs is similar to the conventional MMMs fabrication procedure, with a difference that after the casting of the membrane, the polymer film was then placed into the water bath followed by soaking in continuous flow water to remove MOF particles from the membrane matrix. Compared to common MMMs, the PMMs can significantly enhance the pure water permeability and this might be attributed to the changes in the physical structure of the membrane, as shown in Figure S1 .…”

Section: Introductionmentioning

confidence: 99%

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Physical modification of polymeric support layer for thin film composite forward osmosis membranes by metal–organic framework‐based porous matrix membrane strategy

Arjmandi

Chenar

Peyravi

et al. 2019

J of Applied Polymer Sci

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Physical modification of support layers (SLs) for thin-film composite (TFC) forward osmosis (FO) membranes is the main goal of this study. Accordingly, the strategy of metal-organic framework (MOF)-based porous matrix membrane (PMM) was used for the fabrication of controllable SLs. Fourteen different TFC FO membranes were successfully fabricated by interfacial polymerization (IP) technique over the fourteen different SLs made of polyetherimide (PEI), polyethersulfone (PES), and twelve MOF-based PMM. The controllable MOF particles, fabricated SLs, and TFC membranes were characterized by Fourier-transform infrared spectroscopy (FTIR), powder X-ray diffraction (PXRD), dynamic light scattering (DLS), field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), contact angle (CA), inductively coupled plasma (ICP), and developed SHN1 method. The results showed that the PMM strategy can lead to an increase in the degree of crosslinking of polyamide (PA) as a result of physical modification of the original SLs. Also, the PMM strategy reduced the structural parameters and hence the internal concentration polarization (ICP) was controlled. However, according to the characteristic curve, physical modification of the structure of PES and PEI by MOF-based PMM strategy caused a small and dramatic effect (respectively) on the performance of the TFC FO membranes. the effective driving force (EDF) across the semipermeable membrane, causing reduced membrane performance. The intensity of DICP can be determined using structural parameter (S), which is mainly depended on the physicochemical properties of the SL. To reduce S value (or reduce DICP) in FO membranes, SL should be fabricated with high porosity (ε), low tortuosity (τ), and thin Additional Supporting Information may be found in the online version of this article.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Physical modification of polymeric support layer for thin film composite forward osmosis membranes by metal–organic framework‐based porous matrix membrane strategy

Arjmandi

Chenar

Peyravi

et al. 2019

J of Applied Polymer Sci

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“…31,32 The production of these composite materials contributes to achieving a better membrane with more acceptable specifications and transport properties than both types of polymeric and inorganic membranes, such as permeability and selectivity and suitable mechanical and thermal resistance. 32,33 Within the last decade, polymeric membranes with good chemical and thermal stability and high selectivity and gas flux, along with inorganic particles (e.g., zeolite, 34 carbon molecular sieves [35][36][37][38] , inorganic oxides, 39 and organic fillers 40 (e.g., fullerenes and carbon nanotubes (CNT) [41][42][43][44][45][46][47][48][49] , have been applied in the preparation of composite membranes. Various combinations of fillers and polymers result in diverse interface morphologies, which lead to special influences on gas-separation performance.…”

Section: Introductionmentioning

confidence: 99%

The morphology and gas‐separation performance of membranes comprising multiwalled carbon nanotubes/polysulfone–Kapton

Soleymanipour

Dehaghani

Pirouzfar

et al. 2016

J of Applied Polymer Sci

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The development of desirable chemical structures and properties in nanocomposite membranes involve steps that need to be carefully designed and controlled. This study investigates the effect of adding multiwalled nanotubes (MWNT) on a Kapton-polysulfone composite membrane on the separation of various gas pairs. Data from Fourier transform infrared spectroscopy and scanning electron microscopy confirm that some studies on the Kapton-polysulfone blends are miscible on the molecular level. In fact, the results indicate that the chemical structure of the blend components, the Kapton-polysulfone blend compositions, and the carbon nanotubes play important roles in the transport properties of the resulting membranes. The results of gas permeability tests for the synthesized membranes specify that using a higher percentage of polysulfone (PSF) in blends resulted in membranes with higher ideal selectivity and permeability. Although the addition of nanotubes can increase the permeability of gases, it decreases gas pair selectivity. Furthermore, these outcomes suggest that Kapton-PSF membranes with higher PSF are special candidates for CO 2 /CH 4 separation compared to CO 2 /N 2 and O 2 /N 2 separation. High CH 4 , CO 2 , N 2 , and O 2 permeabilities of 0.35, 6.2, 0.34, and 1.15 bar, respectively, are obtained for the developed Kapton-PSF membranes (25/75%) with the highest percentage of carbon nanotubes (8%), whose values are the highest among all the resultant membranes.

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“…They reported that the ZnO cluster was primarily responsible for H 2 adsorption while the organic ligand (BDC) played only a secondary role. Arjmandi and Pakizeh (2014) synthesized and characterized (by XRD, FTIR, N 2 adsorption technique at 77 K and particle size analysis) C-MOF-5 and incorporated it in polyetherimide (PEI) as filler to make C-MOF-5/PEI MMMs and study the effect of C-MOF-5 on CH 4 , CO 2 , N 2 , and H 2 gas permeation through the MMMs. The results showed that C-MOF-5 nanocrystals have the potential (as filler in C-MOF-5/PEI MMMs) to enhance CO 2 separation from H 2 , CH 4 and N 2 .…”

Section: Introductionmentioning

confidence: 99%

“…The results showed that C-MOF-5 nanocrystals have the potential (as filler in C-MOF-5/PEI MMMs) to enhance CO 2 separation from H 2 , CH 4 and N 2 . Arjmandi et al (2014) investigated the effect of more ZnO units in T-MOF-5 than in the C-MOF-5 structure on the gas permeation properties of T-MOF-5/PEI MMMs. For this purpose, T-MOF-5 was successfully synthesized and carefully characterized by XRD, FTIR, SEM and the N 2 adsorption technique at 77 K. The results showed that T-MOF-5 nanocrystals have the potential (as filler in MMMs) to enhance H 2 separation from CO 2 , CH 4 and N 2 .…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study of H2 and Co2 Adsorption Behavior of C-Mof-5 and T-Mof-5: A Complementary Study

Arjmandi

Pakizeh

2016

Braz. J. Chem. Eng.

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-In this paper the cubic and tetragonal structure of MOF-5 were successfully synthesized and characterized by TGA and SEM analysis. Equilibrium adsorption isotherms of C-MOF-5 and T-MOF-5 for H 2 and CO 2 were measured up to 25 bar at 298 K using a volumetric method. The C-MOF-5 adsorbent synthesized in this study had a 0.107 and 79.9 wt% adsorption capacities at 298 K and 25 bar for H 2 and CO 2 , respectively. T-MOF-5 had a H 2 adsorption capacity of 0.122 wt% and CO 2 adsorption capacity of 67.6 wt% at 298 K and 25 bar. This behavior was attributed to more ZnO units in the T-MOF-5 structure. The difference between H 2 and CO 2 adsorption capacity for the cubic and tetragonal structure of MOF-5, suggests that C-MOF-5 and T-MOF-5 are potential adsorbents for the separation of CO 2 and H 2 from gas mixtures, respectively. Langmuir, Freundlich and Sips isotherm models were used to correlate the adsorption isotherms. The results showed that, at 298 K, the fit of the Sips isotherm to the experimental datawas better than Langmuir and Freundlich isotherms. According to TGA results, the thermal decomposition of C-MOF-5 requires a higher temperature than T-MOF-5.

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The role of tetragonal-metal-organic framework-5 loadings with extra ZnO molecule on the gas separation performance of mixed matrix membrane

Cited by 23 publications

References 43 publications

Physical modification of polymeric support layer for thin film composite forward osmosis membranes by metal–organic framework‐based porous matrix membrane strategy

Physical modification of polymeric support layer for thin film composite forward osmosis membranes by metal–organic framework‐based porous matrix membrane strategy

The morphology and gas‐separation performance of membranes comprising multiwalled carbon nanotubes/polysulfone–Kapton

An Experimental Study of H2 and Co2 Adsorption Behavior of C-Mof-5 and T-Mof-5: A Complementary Study

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