CO2/CH4 separation by mixed-matrix membranes holding functionalized NH2-MIL-101(Al) nanoparticles: Effect of amino-silane functionalization

Ahmadipouya, Salman; Ahmadijokani, Farhad; Molavi, Hossein; Rezakazemi, Mashallah; Arjmand, Mohammad

doi:10.1016/j.cherd.2021.09.011

Cited by 37 publications

(9 citation statements)

References 69 publications

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“…According to the CO 2 adsorption isotherm, MIL‐53(Al) has a larger ability to absorb CO 2 compared with NH 2 ‐MIL53. At a pressure, less than 6.3 bar, NH 2 ‐MIL53(Al) adsorbed a greater quantity of CO 2 than MIL‐53(Al) due to the presence of the NH 2 group, confirming BET findings previously published for various amine‐functionalized MOF 56,57 . However, when the feed pressure rises from 6.3 bar to greater levels, MIL‐53(Al)'s CO 2 adsorption capacity improves.…”

Section: Resultssupporting

confidence: 86%

“…The carrier gas was Helium. 56,57 However, when the feed pressure rises from 6.3 bar to greater levels, MIL-53(Al)'s CO 2 adsorption capacity improves. It's possible that at lower pressures, chemical interactions regulate adsorption, but at pressures greater than 6.3 bar, physical interactions dominate adsorption.…”

Section: Permeability and Selectivity Measurementsmentioning

confidence: 99%

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Performance of amine‐functionalized MIL‐53 incorporated thin‐film nanocomposite Pebax membranes for CO₂/CH₄ mixed gas separation

Fakoori

Azdarpour

Honarvar

2022

Asia-Pacific J Chem Eng

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In the present paper, the gas transport characteristics of amine-functionalized MIL-53 metal-organic frameworks (MOFs) integrated thin-film nanocomposite (TFN) Pebax 2533 membranes dip-coated over a polysulfone (PSF) layer were studied. Various characterization methods were used to investigate the impact of ligand functionalization by NH 2 on the characteristics of the generated TFN membranes and their gas transport properties, including TGA, FESEM, BET, gas adsorption tests, and a series of CO 2 /CH 4 mixed gas separation tests. According to the FESEM pictures, the NH 2 -MIL 53(Al) particles were well distributed in the TFN membranes, with no apparent agglomeration, The gas adsorption experiment of NH 2 -MIL 53(Al) particles showed that they adsorb CO 2 selectively. The incorporation of NH 2 -MIL 53(Al) into TFN membranes led to improved CO 2 /CH 4 selectivity and increased gas permeability. In addition, CO 2 /CH 4 selectivity and CO 2 permeability of the CO 2 /CH 4 mixed gas were enhanced from 11.05 to 26.55 and from 111.6 to 260.2 Barrer, respectively, when NH 2 -MIL 53(Al) 20 wt% was added to the TFN membrane. In the CO 2 /CH 4 mixed gas experiment, increasing the temperature from 30 to 50 C increased the permeability of both CH 4 and CO 2 while decreasing the CO 2 /CH 4 selectivity. Furthermore, the performance of the prepared membranes was assessed at different feed pressures ranging from 4 to 8 bar. As the feed pressure increased, the CO 2 /CH 4 separation improved. Also, with pure gas, the increase in NH 2 -MIL53(Al) loading resulted in lower diffusivity selectivity amounts for the TFN membrane than for the pristine TFN, and solubility selectivity was enhanced from 5 to 20 wt% and was reduced to 25 and 30 wt% in the TFN, respectively. In the present study, the best results were obtained at 6 bar pressure, 30 C temperature, and 20 wt% loading of NH 2 -MIL53(Al).

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Section: Resultssupporting

confidence: 86%

Section: Permeability and Selectivity Measurementsmentioning

confidence: 99%

Performance of amine‐functionalized MIL‐53 incorporated thin‐film nanocomposite Pebax membranes for CO₂/CH₄ mixed gas separation

Fakoori

Azdarpour

Honarvar

2022

Asia-Pacific J Chem Eng

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“…Metal–organic frameworks (MOFs) are hybrid inorganic–organic porous materials. The inorganic part includes metal ions (clusters), and the organic part consists of bridging linkers between the metal ions. − In recent years, MOFs have attracted the attention of researchers, especially those working in the biotechnology field including drug delivery, drug adsorption, image contrast agents (CAs), and tissue engineering. − The popularity of MOFs is due to their crystalline structure, porosity, high surface area, ease of functionalization, and tunable size. − Among various MOFs, lanthanide-containing MOFs are intriguing in the bioimaging field. The metal in this class of MOFs shows photoluminescence and magnetic properties, which can play the role of a CA in imaging and as a result make lanthanide MOFs promising multifunctional materials for treatments, biosensors, and imaging. − …”

Section: Introductionmentioning

confidence: 99%

Adsorption Behavior of a Gd-Based Metal–Organic Framework toward the Quercetin Drug: Effect of the Activation Condition

et al. 2022

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A carboxylate gadolinium-based metal–organic framework (Gd-MOF) is an exceptional candidate for magnetic resonance imaging agents, but its low drug adsorption capacity hinders this MOF from being used as a theragnostic agent. In this work, the Gd-MOF was synthesized by a simple solvothermal method. Then, different activation situations, including various solvents over different time periods, were applied to enhance the specific surface area of the synthesized MOF. Different characterization analyses such as X-ray diffraction and Brunauer–Emmett–Teller along with experimental quercetin adsorption tests were done to study the crystalline and physical properties of various activated MOFs. In the following, the MOF activated by ethanol for 3 days (3d-E) was chosen as the best activated MOF due to its crystallinity, highest specific surface area, and drug adsorption capacity. More explorations were done for the selected MOF, including the drug adsorption isotherm, thermodynamics, and pH effect of adsorption. The results show that the activation process substantially affects the crystallinity, morphology, specific surface area, and drug adsorption capacity of Gd-MOFs. An optimized activation condition is proposed in this work, which shows an impressive enhancement of the specific surface area of Gd-MOFs just by simple solvent exchange method employment.

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“…MIL-53 is a three-dimensional porous structure with one-dimensional diamond-shaped channels [ 25 , 54 ]. MIL-101 (Cr) is composed of octahedral clusters of trimeric chromium (III) interconnected by 1,4-benzenedicarboxylates with the chemical formula of Cr 3 F(H 2 O) 2 OO 2 C-C 6 H 4 -CO 23 ·nH 2 O [ 52 , 55 ]. On the other hand, a newly discovered titanium-based MIL-125 (Ti) MOF consists of 2 cage sizes of 6.1 Å and 12.6 Å with pore apertures of 6 Å, also possibly a smaller aperture when amine functionalization is introduced.…”

Section: Metal-organic Framework Fillersmentioning

confidence: 99%

Development of Amine-Functionalized Metal-Organic Frameworks Hollow Fiber Mixed Matrix Membranes for CO2 and CH4 Separation: A Review

et al. 2022

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CO2 separation from raw natural gas can be achieved through the use of the promising membrane-based technology. Polymeric membranes are a known method for separating CO2 but suffer from trade-offs between its permeability and selectivity. Therefore, through the use of mixed matrix membranes (MMMs) which utilizes inorganic or hybrid fillers such as metal-organic frameworks (MOFs) in polymeric matrix, the permeability and selectivity trade-off can be overcome and possibly surpass the Robeson Upper Bounds. In this study, various types of MOFs are explored in terms of its structure and properties such as thermal and chemical stability. Next, the use of amine and non-amine functionalized MOFs in MMMs development are compared in order to investigate the effects of amine functionalization on the membrane gas separation performance for flat sheet and hollow fiber configurations as reported in the literature. Moreover, the gas transport properties and various challenges faced by hollow fiber mixed matrix membranes (HFMMMs) are discussed. In addition, the utilization of amine functionalization MOF for mitigating the challenges faced is included. Finally, the future directions of amine-functionalized MOF HFMMMs are discussed for the fields of CO2 separation.

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CO2/CH4 separation by mixed-matrix membranes holding functionalized NH2-MIL-101(Al) nanoparticles: Effect of amino-silane functionalization

Cited by 37 publications

References 69 publications

Performance of amine‐functionalized MIL‐53 incorporated thin‐film nanocomposite Pebax membranes for CO₂/CH₄ mixed gas separation

Performance of amine‐functionalized MIL‐53 incorporated thin‐film nanocomposite Pebax membranes for CO₂/CH₄ mixed gas separation

Adsorption Behavior of a Gd-Based Metal–Organic Framework toward the Quercetin Drug: Effect of the Activation Condition

Development of Amine-Functionalized Metal-Organic Frameworks Hollow Fiber Mixed Matrix Membranes for CO2 and CH4 Separation: A Review

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CO2/CH4 separation by mixed-matrix membranes holding functionalized NH2-MIL-101(Al) nanoparticles: Effect of amino-silane functionalization

Cited by 37 publications

References 69 publications

Performance of amine‐functionalized MIL‐53 incorporated thin‐film nanocomposite Pebax membranes for CO2/CH4 mixed gas separation

Performance of amine‐functionalized MIL‐53 incorporated thin‐film nanocomposite Pebax membranes for CO2/CH4 mixed gas separation

Adsorption Behavior of a Gd-Based Metal–Organic Framework toward the Quercetin Drug: Effect of the Activation Condition

Development of Amine-Functionalized Metal-Organic Frameworks Hollow Fiber Mixed Matrix Membranes for CO2 and CH4 Separation: A Review

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Product

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Performance of amine‐functionalized MIL‐53 incorporated thin‐film nanocomposite Pebax membranes for CO₂/CH₄ mixed gas separation

Performance of amine‐functionalized MIL‐53 incorporated thin‐film nanocomposite Pebax membranes for CO₂/CH₄ mixed gas separation