Widening CO2-facilitated transport passageways in SPEEK matrix using polymer brushes functionalized double-shelled organic submicrocapsules for efficient gas separation

Xin, Qingping; Liu, Huanran; Zhang, Yuan; Ye, Hui; Wang, Shaofei; Lin, Ligang; Ding, Xiaoli; Cheng, Bowen; Zhang, Yuzhong; Wu, Hong; Jiang, Zhongyi

doi:10.1016/j.memsci.2016.12.007

Cited by 16 publications

(8 citation statements)

References 63 publications

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“…These results directly demonstrate the advantages provided by mesoporous fillers and incorporating such fillers in the hydrophilic matrix. So, by taking this into account, various researches have also been done with microcapsules as filler, due to their hollow structure, it can construct even more CO2 transport pathways as compared to mesoporous fillers [200].…”

Section: Water Facilitated Mixed Matrix Membrane For Co2 Capturementioning

confidence: 99%

Advanced Functional Membrane for CO2 Capture

Bora

2022

Advanced Functional Membranes

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The capture of carbon dioxide directly from the air has been shown a growing interest in the mitigation of greenhouse gases but remains controversial among the research community. Due to the high dilution factor of CO2 in air, simultaneously increases the energy requirement as well as the charge of the respective technology. Membrane/Thin film technology has been conceded as the most investigated as well as most appealing technology to attenuate carbon dioxide from the atmosphere. The membrane and membrane process technique are found to be alluring and eco-friendly to mitigate the carbon due to its cost efficiency, low expenditure of energy as well as comprehensibility in operation. Traditionally, the materials are cast into dense membranes with a standard thickness and after the formation of the membranes, their applications such as carbon capture/separation are evaluated by commutation between permeability and selectivity. In present scenario, efficient separation of CO2 from other gases has become a worldwide issue. Coal/Natural/Flue gases are evolving as the primary source of CO2, so the capture of CO2 from the mentioned sources are extensively contemplated as the next opportunity for the large-scale deployment of gas separation membranes. Although, current researches indicate the advances in material process designs that can crucially enhance the membrane capture systems as well as the separation systems, which make membrane process technique contentious with other technologies present till date for carbon capture. The aforementioned application requires novel polymeric materials which have the ability for efficient carbon capture and possesses high CO2 separation properties from different mixed gases, along with high mechanical and thermal stability for a longer time. Herein, the present report precisely highlights the recent advancement on the membrane technology based on the functional materials and their applications in the field of CO2 capture.

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Section: Water Facilitated Mixed Matrix Membrane For Co2 Capturementioning

confidence: 99%

Advanced Functional Membrane for CO2 Capture

Bora

2022

Advanced Functional Membranes

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“…The efficient CO 2 separation from CH 4 makes great contribution to the natural gas or biogas purification, and thus, the development of prospective separation techniques is necessary. − Membrane technology for CO 2 /CH 4 separation has drawn wide attention due to its smaller footprint, energy efficiency, and eco-friendliness. − However, the commercial organic polymeric membrane suffers from the “tradeoff” effect between CO 2 permeability and CO 2 /CH 4 selectivity, and it is difficult to transcend the Robeson upper bound. − In brief, high permeability results in low selectivity and vice versa. The MMMs consisting of a continuous polymer and a dispersed filler possess the merits to solve the disadvantages of polymer membranes and display a promising prospect to surpass the tradeoff limitation .…”

Section: Introductionmentioning

confidence: 99%

Efficient CO₂ Separation of Multi-Permselective Mixed Matrix Membranes with a Unique Interfacial Structure Regulated by Mesoporous Nanosheets

Xin

Shao

et al. 2020

ACS Appl. Mater. Interfaces

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A facile strategy to elevate gas separation performances of polymers is to introduce a versatile particle. In this study, the novel F-Ce nanosheets are synthesized, and then F-Ce is functionalized with 1-ethyl-3-methylimidazole thiocyanate (ionic liquids, ILs), obtaining multifunctional f-F-Ce nanosheets by the facile and environment-friendly methods. The multifunctional f-F-Ce nanosheets are incorporated into the Pebax (Pebax 1657) matrix to fabricate mixed matrix membranes (MMMs) for efficient CO 2 separation. The f-F-Ce nanosheets play versatile parts in elevating membrane gas separation performance. On the one hand, f-F-Ce tends to arrange horizontally and constructs a unique interfacial structure for cross-layer CO 2 transport in MMMs. On the other hand, the abundant mesopores from f-F-Ce construct high-speed CO 2 transport channels in MMMs and notably elevate the gas permeability. Moreover, the as-prepared MMMs separate CO 2 efficiently due to the comprehensive improvements of diffusivity selectivity, solubility selectivity, and reactivity selectivity. First, the high aspect ratio of f-F-Ce provides the tortuous pathways for gas transport and generates the rigid interface between the Pebax matrix and f-F-Ce nanosheets, increasing the diffusivity selectivity. Second, SCN − groups from ILs show excellent affinity to CO 2 , enhancing the solubility selectivity. Third, amine groups from ILs with abundant methylimidazole generate reversible reaction with CO 2 to elevate reactivity selectivity. Consequently, the f-F-Cedoped MMMs display excellent CO 2 permeability and CO 2 /CH 4 selectivity. In particular, the MMM incorporated with 8 wt % f-F-Ce displays a CO 2 permeability of 1823 Barrer and a CO 2 /CH 4 selectivity of 35, overcoming the Robeson upper bound line (2008).

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“…The air pollution of particulate matter particles has complicated compositions including organic matter (for example, elemental carbon, organic carbon) and inorganic matter (for example, NO 3 – , SO 4 2– , and SiO 2 ) from various sources incorporating coal combustion, industrial emission, soil dust, biomass burning, vehicular emission, and secondary aerosols. ,,, Owing to high polarity of particulate matters, the surface charge, unbalanced metal ions, or open metal site on the surface of metal–organic complexes − play an important role in enhancing the attraction between the PMs and the metal–organic complexes. In particular, unbalanced metal ions on the surface or electron cloud exposed metal center of metal–organic complexes offers the positive charge improving the electrostatic interactions and thus can polarize the surface of PMs. − Therefore, it is attractive to develop advanced metal–organic complexes based air filters with high removal efficiencies. However, metal–organic complexes crystals are brittle, which could be easily destroyed into fine powders; therefore, fabrication of metal–organic complexes into robust devices (e.g., films, membranes, and fibers) is required before they can be widely adopted in real application scenarios. − To our knowledge, metal–organic crystalline material-based membranes, for example, have shown promise in air pollution control. − Such membranes can be achieved by casting, electrospinning, and so on .…”

Section: Introductionmentioning

confidence: 99%

Hot-Pressing Method To Prepare Imidazole-Based Zn(II) Metal–Organic Complexes Coatings for Highly Efficient Air Filtration

Wang

Fan

Zhou

et al. 2018

ACS Appl. Mater. Interfaces

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Particulate matters (PMs) air pollution has become a serious environmental issue due to its great threat to human health. Herein, metal-organic complexes PBM-Zn1 and PBM-Zn2 coatings (noted as PBM-Zn-Filter) have been produced by the hot-pressing method on various substrates for the first time. Layer-by-layer PBM-Zn-Filters were also obtained through varying hot-pressing cycles. The obtained PBM-Zn-Filters with high robustness show excellent performance in PMs removal. In particular, benefiting from thelarger conjugation system, micropore structure, lower pressure drop, higher electrostatic potential ζ, and electron cloud exposed metal center of PBM-Zn2 (DFT calculations), PBM-Zn2@melamine foam-4 gives the highest removal rates, PM2.5:99.5% ± 1.2% and PM10:99.3% ± 1.1%, and the removal efficiency for capture PM2.5 and PM10 particles in cigarette smoke were both retained at high levels (>95.5%) after 24 h tests. More importantly, a homemade mask is made up by imbedding the PBM-Zn2@melamine foam-4 into a commercial breathing mask, which shows higher removal efficiency, lower pressure drop, smaller thickness, and higher quality factor than two commercial breathing masks, the PMs removal efficiencies for both PM2.5 and PM10 are 99.6% ± 0.5% and 99.4% ± 0.8%, and acceptable air resistance are demonstrated.

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Widening CO2-facilitated transport passageways in SPEEK matrix using polymer brushes functionalized double-shelled organic submicrocapsules for efficient gas separation

Cited by 16 publications

References 63 publications

Advanced Functional Membrane for CO2 Capture

Advanced Functional Membrane for CO2 Capture

Efficient CO₂ Separation of Multi-Permselective Mixed Matrix Membranes with a Unique Interfacial Structure Regulated by Mesoporous Nanosheets

Hot-Pressing Method To Prepare Imidazole-Based Zn(II) Metal–Organic Complexes Coatings for Highly Efficient Air Filtration

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Widening CO2-facilitated transport passageways in SPEEK matrix using polymer brushes functionalized double-shelled organic submicrocapsules for efficient gas separation

Cited by 16 publications

References 63 publications

Advanced Functional Membrane for CO2 Capture

Advanced Functional Membrane for CO2 Capture

Efficient CO2 Separation of Multi-Permselective Mixed Matrix Membranes with a Unique Interfacial Structure Regulated by Mesoporous Nanosheets

Hot-Pressing Method To Prepare Imidazole-Based Zn(II) Metal–Organic Complexes Coatings for Highly Efficient Air Filtration

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Efficient CO₂ Separation of Multi-Permselective Mixed Matrix Membranes with a Unique Interfacial Structure Regulated by Mesoporous Nanosheets