Improved CO2 separation performance of composite membrane with the aids of low-temperature plasma treatment

Zhao, Dan; Wu, Yongdong; Ren, Jizhong; Li, Hui; Qiu, Yongtao; Deng, Mingke

doi:10.1016/j.memsci.2018.10.051

Cited by 35 publications

(14 citation statements)

References 57 publications

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“…The neat and MMMs exhibited a broad peak at around 20.7° and a comparatively narrow diffraction peak in the region of 24.0° corresponding to the soft PE segments and hard PA segments of Pebax with d ‐spacing of 4.36 and 3.70 Å, respectively. The narrow peak at 24° is the characteristic peak of the Pebax and reported in literature [51,52] . It is interesting to note that, initially the addition of g ‐PTAP (wt.…”

Section: Resultssupporting

confidence: 60%

A 2D Graphitic‐Polytriaminopyrimidine (g‐PTAP)/Poly(ether‐block‐amide) Mixed Matrix Membrane for CO₂ Separation

Asim

Khan

Helal

et al. 2021

Chemistry An Asian Journal

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Poly(ether‐block‐amide)/g‐PTAP mixed matrix membranes (MMMs) were developed by incorporating different wt.% (1–10%) of a novel 2D g‐PTAP nanofiller and its effects on membrane structure and gas permeability were studied. The novel 2D material g‐PTAP was synthesized and characterized by various analytical techniques including field‐emission scanning electron microscopy (FESEM), X‐ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and Raman spectroscopy. The fabricated MMMs were investigated to study the interaction and compatibility between Pebax and g‐PTAP. The MMMs showed an effective integration of g‐PTAP nanofiller into the Pebax matrix without affecting its thermal stability. Gas permeation experiments with MMMs showed improved CO2 permeability and selectivity (CO2/N2) upon incorporation of g‐PTAP in the Pebax polymer matrix. The maximum CO2 permeability enhancement from 82.3 to 154.6 Barrer with highest CO2/N2 selectivity from 49.5 to 83.5 were found with 2.5 wt.% of nanofiller compared to neat Pebax membranes.

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Section: Resultssupporting

confidence: 60%

A 2D Graphitic‐Polytriaminopyrimidine (g‐PTAP)/Poly(ether‐block‐amide) Mixed Matrix Membrane for CO₂ Separation

Asim

Khan

Helal

et al. 2021

Chemistry An Asian Journal

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“…Robust human development in power plants and industrial production has paved the way for the rapid increase in CO 2 emissions. , Hence, there is an increasing demand for advanced technologies to efficiently capture and purify CO 2 emissions. CO 2 capture and separation technologies have been divided into absorption, , permeation, low temperature, membrane separation, , and other techniques. Many techniques have been used to capture CO 2 from exhaust gases; among them, an absorption packed column based on a gas–liquid contactor is the most common configuration.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of a Self-Assembling Smart and Electrically Responsive PVDF–Graphene Membrane for Controlled Gas Separation

Widakdo

Chiao

Lai

et al. 2020

ACS Appl. Mater. Interfaces

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The development of science and technology is accompanied by a complex composition of multiple pollutants. Conventional passive separation processes are not sufficient for current industrial applications. The advent of active or responsive separation methods has become highly essential for future applications. In this work, we demonstrate the preparation of a smart electrically responsive membrane, a poly(vinylidene difluoride) (PVDF)–graphene composite membrane. The high graphene content induces the self-assembly of PVDF with a high β-phase content, which displays a unique self-piezoelectric property. Additionally, the membrane exhibits excellent electrical conductivity and unique capacitive properties, and the resultant nanochannels in the membrane can be reversibly adjusted by external voltage applications, resulting in the tailored gas selectivity of a single membrane. After the application of voltage to the membrane, the permeability and selectivity toward carbon dioxide increase simultaneously. Moreover, atomic-level positron annihilation spectroscopic studies reveal the piezoelectric effect on the free volume of the membrane, which helps us to formulate a gas permeation mechanism for the electrically responsive membrane. Overall, the novel active membrane separation process proposed in this work opens new avenues for the development of a new generation of responsive membranes.

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“…The peaks at 1735 and 1637 cm −1 were assigned to the free CO and hydrogen bonded CO in HNCO, respectively. 1200 cm −1 was the asymmetric CO stretching vibration 28 . For PVDF/SPEEK composite membrane, the characteristic peaks of the sulfonic group can be clearly observed from the Figure 10.…”

Section: Resultsmentioning

confidence: 92%

“…1200 cm −1 was the asymmetric C O stretching vibration. 28 For PVDF/SPEEK composite membrane, the characteristic peaks of the sulfonic group can be clearly observed from the Figure 10. The peaks at 1022 cm −1 was the symmetric stretching vibration peak of sulfonate group O S O, and around 1078 cm −1 was the stretching absorption peak of S O.…”

Section: Ftir Characterizationmentioning

confidence: 92%

Water recovery from flue gas using polyether block amide 2533/sulfonated poly(ether ether ketone) composite membrane

Zhang

Wang

Liu

et al. 2021

J of Applied Polymer Sci

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Recycling water from flue gas of coal‐fired power plants is of great significance to save energy and water resources and reduce environmental pollution. In the present work, two potential polymers (polyether block amide 2533(PEBAX 2533) and sulfonated poly(ether ether ketone) (SPEEK)) were investigated and showed high water vapor permeability and selectivity, respectively. Combined with the advantages of the two materials, a novel PEBAX 2533/SPEEK composite membrane with an ultra‐thin SPEEK selection layer on the outer surface of the high permeable PEBAX 2533 layer was prepared by dip coating. The composite membranes were assembled into a membrane capsule module and tested directly in artificial and real flue gas. The condensed water vapor fluxes were 1006.9 g/m2.h in artificial flue gas and 600–900 g/m2.h on average in real flue gas during a period of 30 days, exhibiting good water vapor permeability and durability in real flue gas.

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Improved CO2 separation performance of composite membrane with the aids of low-temperature plasma treatment

Cited by 35 publications

References 57 publications

A 2D Graphitic‐Polytriaminopyrimidine (g‐PTAP)/Poly(ether‐block‐amide) Mixed Matrix Membrane for CO₂ Separation

A 2D Graphitic‐Polytriaminopyrimidine (g‐PTAP)/Poly(ether‐block‐amide) Mixed Matrix Membrane for CO₂ Separation

Mechanism of a Self-Assembling Smart and Electrically Responsive PVDF–Graphene Membrane for Controlled Gas Separation

Water recovery from flue gas using polyether block amide 2533/sulfonated poly(ether ether ketone) composite membrane

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Improved CO2 separation performance of composite membrane with the aids of low-temperature plasma treatment

Cited by 35 publications

References 57 publications

A 2D Graphitic‐Polytriaminopyrimidine (g‐PTAP)/Poly(ether‐block‐amide) Mixed Matrix Membrane for CO2 Separation

A 2D Graphitic‐Polytriaminopyrimidine (g‐PTAP)/Poly(ether‐block‐amide) Mixed Matrix Membrane for CO2 Separation

Mechanism of a Self-Assembling Smart and Electrically Responsive PVDF–Graphene Membrane for Controlled Gas Separation

Water recovery from flue gas using polyether block amide 2533/sulfonated poly(ether ether ketone) composite membrane

Contact Info

Product

Resources

About

A 2D Graphitic‐Polytriaminopyrimidine (g‐PTAP)/Poly(ether‐block‐amide) Mixed Matrix Membrane for CO₂ Separation

A 2D Graphitic‐Polytriaminopyrimidine (g‐PTAP)/Poly(ether‐block‐amide) Mixed Matrix Membrane for CO₂ Separation