CO2 selective separation of Pebax-based mixed matrix membranes (MMMs) accelerated by silica nanoparticle organic hybrid materials (NOHMs)

Wang, Dechao; Song, Shan Shan; Zhang, Weirui; He, Zhongjie; Wang, Yudeng; Zheng, Yaping; Yao, Dongdong; Pan, Yang; Yang, Zhiyuan; Meng, Zhuoyue; Li, Yinyan

doi:10.1016/j.seppur.2020.116708

Cited by 42 publications

(24 citation statements)

References 90 publications

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“…It is implied that the minor phase of glass polymers in the PEBAX matrix does not introduce any plasticization behavior. In fact, the overall declining trend for CO 2 permeability with increasing pressure is due to the strongly CO 2 polarizable molecules which have a compression effect on mobile PEBAX polymer chains 57–59 . Previous authors also reported similar results 7,60 .…”

Section: Resultsmentioning

confidence: 66%

Permselectivity improvement of PEBAX® 2533 membrane by addition of glassy polymers (Matrimid® and polystyrene) for CO₂/N₂ separation

Ansari

Navarchian

Rajati

2021

J of Applied Polymer Sci

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Two series of novel blend membranes based on poly(ether‐block‐amide) (PEBAX® 2533) and 5 and 10 wt% of two glassy polymers (Matrimid® and polystyrene [PS]) were prepared using a new mixed solvent with a low boiling point for CO2/N2 separation. Fourier‐transform infrared spectroscopy, field emission scanning electron microscopy, and X‐ray diffraction analyses were used to characterize the samples. A decrease in membrane crystallinity was observed by the addition of glassy polymers. The gas permeability measurements were performed to obtain CO2/N2 permselectivity of membranes. The maximum performance was found for the membrane with 5 wt% Matrimid content, for which CO2 permeability and CO2/N2 selectivity increased by 21% and 76%, respectively. Three permeation models were used to predict the CO2 permeability of blend membranes. The Maxwell model showed acceptable coincidence with the experimental data at 5 wt% content of the glassy polymer. For 10 wt% content of glassy polymer, the Lewis‐Neilson model showed the most accurate predictions for CO2 permeability. A method for quantitative comparison of membrane performance was also proposed by defining the geometric closeness to the Robson upper bound limit. Finally, it was found that an increase in the feed pressure improved the membrane performance at high pressures.

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Section: Resultsmentioning

confidence: 66%

Permselectivity improvement of PEBAX® 2533 membrane by addition of glassy polymers (Matrimid® and polystyrene) for CO₂/N₂ separation

Ansari

Navarchian

Rajati

2021

J of Applied Polymer Sci

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“…Other studies exploited the high hydrophilicity of Fumed Silica, due to the abundant silanol groups on its surface, using nanoparticles of 7 nm and 16 nm in size (2–12 wt%) [ 15 ], while nanoparticle organic hybrid materials (NOHMs) based on Silica with core/corona/canopy structures and larger sizes (120, 220 and 380 nm) were also investigated [ 16 ].…”

Section: Materials For the Analysed Mmmsmentioning

confidence: 99%

“…Some additives were included in the polymer/nanoparticles composites as a third phase in order to provide CO 2 -philic moieties (e.g., EO segments). A polyetheramine canopy (M2070) was used to modify CNTs or GO [ 38 ] and silica-based NOHMs [ 16 ]. The M2070 imparts a superior CO 2 selective separation to the MMMs since it brings ethylene oxide (EO) and secondary amine –NH– units that promote the adsorption of CO 2 by Lewis acid–base interactions and by chemical reaction, respectively.…”

Section: Main Issues In Mmms Developmentmentioning

confidence: 99%

“…The M2070 imparts a superior CO 2 selective separation to the MMMs since it brings ethylene oxide (EO) and secondary amine –NH– units that promote the adsorption of CO 2 by Lewis acid–base interactions and by chemical reaction, respectively. The enhanced CO 2 selective separation sites for silica-based NOHMs were determined by molecular simulation [ 16 ]. An increase in CO 2 solubility was reported for MMMs comprising both ZIF-8 and Pluronic owing to the joint action of imidazole ligands from ZIF-8 particles and PEO groups from Pluronic P123 [ 67 ].…”

Section: Main Issues In Mmms Developmentmentioning

confidence: 99%

“…At the same filler content, the larger particles were in a lesser amount; thus, the interaction between CO 2 and EO was less. Indeed, the gas adsorption showed more CO 2 adsorption capacity in MMMs, including NOHMs with smaller cores [ 16 ].…”

Section: Main Issues In Mmms Developmentmentioning

confidence: 99%

See 2 more Smart Citations

A Review of the Recent Progress in the Development of Nanocomposites Based on Poly(ether-block-amide) Copolymers as Membranes for CO2 Separation

Clarizia

Bernardo

2021

Polymers

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An inspiring challenge for membrane scientists is to exceed the current materials’ performance while keeping the intrinsic processability of the polymers. Nanocomposites, as mixed-matrix membranes, represent a practicable response to this strongly felt need, since they combine the superior properties of inorganic fillers with the easy handling of the polymers. In the global strategy of containing the greenhouse effect by pursuing a model of sustainable growth, separations involving CO2 are some of the most pressing topics due to their implications in flue gas emission and natural gas upgrading. For this purpose, Pebax copolymers are being actively studied by virtue of a macromolecular structure that comprises specific groups that are capable of interacting with CO2, facilitating its transport with respect to other gas species. Interestingly, these copolymers show a high versatility in the incorporation of nanofillers, as proved by the large number of papers describing nanocomposite membranes based on Pebax for the separation of CO2. Since the field is advancing fast, this review will focus on the most recent progress (from the last 5 years), in order to provide the most up-to-date overview in this area. The most recent approaches for developing Pebax-based mixed-matrix membranes will be discussed, evidencing the most promising filler materials and analyzing the key-factors and the main aspects that are relevant in terms of achieving the best effectiveness of these multifaceted membranes for the development of innovative devices.

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Encapsulation of Nanoparticle Organic Hybrid Materials within Electrospun Hydrophobic Polymer/Ceramic Fibers for Enhanced CO₂ Capture

Kersey

Lee

et al. 2023

Adv Funct Materials

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Liquid‐like nanoparticle organic hybrid materials (NOHMs) consisting of a silica core with ionically grafted branched polyethyleneimine chains (referred to as NIPEI) are encapsulated within submicron‐scale polyacrylonitrile (PAN)/polymer‐derived‐ceramic electrospun fibers. The addition of a room‐temperature curable, liquid‐phase organopolysilazane (OPSZ) ceramic precursor to the PAN/NOHM solution enhances the internal dispersion of NOHMs and forms a thin ceramic sheath layer on the fiber exterior, shielding the hydrophilic NIPEI to produce near‐superhydrophobic non‐woven fiber mats with contact angles exceeding 140°. 60:40 loadings of NOHMs to PAN/OPSZ can be reliably achieved with low OPSZ percentages required, and up to 4:1 NOHM:polymer loadings are possible before losing hydrophobicity. These fibers demonstrate up to ≈2 mmol CO2 g−1 fiber capture capacities in a pure CO2 atmosphere through the nonwoven fibrous networks and the permeability of the OPSZ shell. The hybrid fibers additionally show enhanced capture kinetics under pure CO2 and 400 ppm CO2 conditions, indicating their promising application as a direct air capture platform.

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CO2 selective separation of Pebax-based mixed matrix membranes (MMMs) accelerated by silica nanoparticle organic hybrid materials (NOHMs)

Cited by 42 publications

References 90 publications

Permselectivity improvement of PEBAX® 2533 membrane by addition of glassy polymers (Matrimid® and polystyrene) for CO₂/N₂ separation

Permselectivity improvement of PEBAX® 2533 membrane by addition of glassy polymers (Matrimid® and polystyrene) for CO₂/N₂ separation

A Review of the Recent Progress in the Development of Nanocomposites Based on Poly(ether-block-amide) Copolymers as Membranes for CO2 Separation

Encapsulation of Nanoparticle Organic Hybrid Materials within Electrospun Hydrophobic Polymer/Ceramic Fibers for Enhanced CO₂ Capture

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CO2 selective separation of Pebax-based mixed matrix membranes (MMMs) accelerated by silica nanoparticle organic hybrid materials (NOHMs)

Cited by 42 publications

References 90 publications

Permselectivity improvement of PEBAX® 2533 membrane by addition of glassy polymers (Matrimid® and polystyrene) for CO2/N2 separation

Permselectivity improvement of PEBAX® 2533 membrane by addition of glassy polymers (Matrimid® and polystyrene) for CO2/N2 separation

A Review of the Recent Progress in the Development of Nanocomposites Based on Poly(ether-block-amide) Copolymers as Membranes for CO2 Separation

Encapsulation of Nanoparticle Organic Hybrid Materials within Electrospun Hydrophobic Polymer/Ceramic Fibers for Enhanced CO2 Capture

Contact Info

Product

Resources

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Permselectivity improvement of PEBAX® 2533 membrane by addition of glassy polymers (Matrimid® and polystyrene) for CO₂/N₂ separation

Permselectivity improvement of PEBAX® 2533 membrane by addition of glassy polymers (Matrimid® and polystyrene) for CO₂/N₂ separation

Encapsulation of Nanoparticle Organic Hybrid Materials within Electrospun Hydrophobic Polymer/Ceramic Fibers for Enhanced CO₂ Capture