Ultrathin, ethylenediamine-functionalized graphene oxide membranes on hollow fibers for CO2 capture

Zhou, Fanglei; Tien, Huynh Ngoc; Dong, Qiaobei; Xu, Weiwei; Li, Huazheng; Li, Shiguang; Yu, Miao

doi:10.1016/j.memsci.2018.11.080

Cited by 100 publications

(33 citation statements)

References 48 publications

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“…The latter, as can be observed in the graph, exhibits a very low intensity, which reveals the low amount of the oxygen‐containing groups in the substance. Thus, such a limited defective oxidized graphene domain can be considered as a confirmation for the presence of low amounts of oxygen groups mainly at the edges of such specific graphene oxide nanoplatelets, although the peak locations are the same as reported elsewhere 82‐84 …”

Section: Resultsmentioning

confidence: 53%

Investigation of electric field‐aligned edge‐oxidized graphene oxide nanoplatelets in polyethersulfone matrix in terms of pure water permeation and dye rejection

Besharat

Manteghian

Russo

et al. 2020

Polymers for Advanced Techs

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Herein, we have evaluated the impact of orientated edge‐oxidized graphene oxide nanoplatelets (EOGO) in polyether sulfone (PES) membrane on the pure water permeability (PWP) and organic dye molecule rejection values. Aligned PES/EOGO nanocomposite films were prepared through electric field induction. Morphological, structural, and chemical‐physical characterizations including atomic force microscopy, thermogravimetric analysis (TGA), contact angle, zeta potential, porosity, and PWP measurements were carried out. The results revealed successful aligned/oriented PES/EOGO nanocomposite formation at low‐to‐moderate EOGO loadings. Membrane function tests demonstrated an increase in water permeability at higher EOGO contents, up to 0.5 wt%, followed by a decrease at 1 wt% nanoplatelets due to nanoparticles agglomeration. The horizontal electric field (1000 Hz) processed samples indicated lower PWP in comparison with their vertical‐field (34% decrement) and No‐field (29% increment) counterparts as well as a better dye molecule rejection at 0.1 wt%, referring to nanoplatelets successful alignment at this loading level.

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Section: Resultsmentioning

confidence: 53%

Investigation of electric field‐aligned edge‐oxidized graphene oxide nanoplatelets in polyethersulfone matrix in terms of pure water permeation and dye rejection

Besharat

Manteghian

Russo

et al. 2020

Polymers for Advanced Techs

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“…The resulting membranes show a CO 2 permeance of 49 GPU and a CO 2 /N 2 ideal selectivity of 50 at 25 °C with the membrane thickness thin to 9 nm, and the performance approximately increases by an order of magnitude at elevated temperature [9] . The similar GO membrane with ethylenediamine as the modifier achieves a CO 2 permeance of 60 GPU and a CO 2 /N 2 separation factor of 70 [7b] . These excellent studies indicate that GO membranes are highly promising for CO 2 capture [2b,7a,b,9] .…”

Section: Introductionmentioning

confidence: 74%

“…The similar GO membrane with ethylenediamine as the modifier achieves a CO 2 permeance of 60 GPU and a CO 2 /N 2 separation factor of 70 [7b] . These excellent studies indicate that GO membranes are highly promising for CO 2 capture [2b,7a,b,9] . However, precise control of the interlayer structure and the functional groups of GO membranes for enhanced CO 2 separation performance and structural stability still remain elusive.…”

Section: Introductionmentioning

confidence: 92%

Designing GO Channels with High Selectivity for CO₂/N₂ Separation via Incorporating Metal Ions

Wang

Zheng

Zhao

et al. 2021

Chemistry An Asian Journal

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Graphene oxide (GO) membranes holds great potential for high‐performance CO2 capture. Aiming at enhancing the CO2 separation performance and structural stability of GO membranes, functionalizing GO channels with metal ions confers a promising strategy. In this study, we reported the fabrication of metal ion‐incorporated GO membranes with remarkably improved CO2/N2 separation performance. The metal ions within GO channels contribute to facilitating CO2 transport, decreasing N2 solubility, hindering N2 diffusion, and form multiple interactions with GO nanosheets. After introducing Mg2+ ions, the CO2/N2 separation factor of GO membrane is remarkably increased from 4 to 48.8 with the CO2 permeance increases 1.5 times. Moreover, the separation performance of the GO‐Mg2+ membranes shows an excellent long‐term stability owing to the structural robustness. This study could provide insights into the regulation of the microstructure of metal ion‐functionalized GO membranes for highly selective transport of specific molecules.

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“…Concretely, new peaks at 1384 and 1044 cm –1 can be attributed to the C–O stretching vibration in carbamate. 41 The peaks at 1178 and 1429 cm –1 can be attributed to the deformation vibration of C–N and −NH 3 + , 42 , 43 respectively. The new peak at 1623 cm –1 is due to the stretching vibration of the C=O bond in the formation of carbamate after the absorption of CO 2 , and the results suggested that carbamate is formed between the basic nitrogen atom of DMAPA and CO 2 .…”

Section: Resultsmentioning

confidence: 99%

Highly Efficient Absorption of CO₂ by Protic Ionic Liquids-Amine Blends at High Temperatures

Zhao

Yang

et al. 2021

ACS Omega

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In view of the increasingly serious harm of CO 2 to the environment, it is highly desirable to develop effective CO 2 absorbents. In this work, we demonstrated an efficient absorption of CO 2 by blends of protic ionic liquids (PILs) plus amines. The density and viscosity of investigative four PILs-amine mixtures were measured. By systematically studying the effects of the solution ratio, temperature, CO 2 partial pressure, and water content on the absorption of CO 2 , it is found that the 3-dimethylamino-1-propylamine acetate ([DMAPAH][OAc]) plus ethanediamine (EDA) mixture shows the highest CO 2 uptake of 0.295 g CO 2 per g absorbent at 50 °C and 1 bar and a further increase in the absorption of CO 2 to 0.299 g/g by adding water with a mass fraction of 20%. Furthermore, the absorption mechanism of CO 2 in the presence and absence of water has also been investigated by FTIR and NMR spectra.

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Ultrathin, ethylenediamine-functionalized graphene oxide membranes on hollow fibers for CO2 capture

Cited by 100 publications

References 48 publications

Investigation of electric field‐aligned edge‐oxidized graphene oxide nanoplatelets in polyethersulfone matrix in terms of pure water permeation and dye rejection

Investigation of electric field‐aligned edge‐oxidized graphene oxide nanoplatelets in polyethersulfone matrix in terms of pure water permeation and dye rejection

Designing GO Channels with High Selectivity for CO₂/N₂ Separation via Incorporating Metal Ions

Highly Efficient Absorption of CO₂ by Protic Ionic Liquids-Amine Blends at High Temperatures

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Ultrathin, ethylenediamine-functionalized graphene oxide membranes on hollow fibers for CO2 capture

Cited by 100 publications

References 48 publications

Investigation of electric field‐aligned edge‐oxidized graphene oxide nanoplatelets in polyethersulfone matrix in terms of pure water permeation and dye rejection

Investigation of electric field‐aligned edge‐oxidized graphene oxide nanoplatelets in polyethersulfone matrix in terms of pure water permeation and dye rejection

Designing GO Channels with High Selectivity for CO2/N2 Separation via Incorporating Metal Ions

Highly Efficient Absorption of CO2 by Protic Ionic Liquids-Amine Blends at High Temperatures

Contact Info

Product

Resources

About

Designing GO Channels with High Selectivity for CO₂/N₂ Separation via Incorporating Metal Ions

Highly Efficient Absorption of CO₂ by Protic Ionic Liquids-Amine Blends at High Temperatures