One dimensional building blocks for molecular separation: Laminated graphitic nanoribbons

Daewoo Kim, In Kim, Jidon Jang, Yoon Tae Nam, Kangho Park, Ki Ok Kwon, Kyoung Min Cho, Junghoon Choi, Daeok Kim, Kyoung Min Kang, Seon Joon Kim, Yousung Jung, Hee Tae Jung

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Herein, a new carbon-based graphitic membrane composed of laminated graphitic nanoribbons with a nanometer-scale width and micrometer-scale length, the graphitic nanoribbon membrane, is reported. Compared to the existing graphitic membranes, such as those composed of graphene oxide and carbon nanotubes, the developed membrane exhibits several unique characteristics in pressure-driven systems. First, the short diffusion length through its interlayer and the free volume of its stacked nanoribbons result in high solvent flux regardless of solvent polarity (water: 25-250 L m -2 h -1 bar -1 ; toluene: ∼975 L m -2 h -1 bar -1 ; hexane: ∼240 L m -2 h -1 bar -1 ). The flux value for water is one order of magnitude higher, while that for nonpolar organic solvents is two to three orders of magnitude greater than the corresponding flux values obtained through commercially available nanofiltration membranes. Second, the membrane exhibits good separation performance, particularly with organic dye molecules (∼100%) and trivalent ions (∼60%), maintaining high solvent flux during extended filtration. Finally, the membrane exhibits high stability in various fluids, e.g., 1 M HCl solution, 1 M NaOH solution, toluene, ethanol, and water, as well as under hydraulic pressures of up to 50 bar. Electron microscopy observation and simulation results suggest that such distinctive features of the membrane are related to the entangled thin multilayers of the graphitic nanoribbons, which possibly originate from the high aspect ratio and narrow width of the nanoribbons.

Original languageEnglish
Pages (from-to)19114-19123
Number of pages10
JournalNanoscale
Volume9
Issue number48
DOIs
Publication statusPublished - 2017 Dec 28

Fingerprint

Nanoribbons
Carbon Nanotubes
Membranes
Fluxes
Toluene
Water
Nanofiltration membranes
Graphite
Free volume
Hexanes
Hexane
Organic solvents
Oxides
Graphene
Electron microscopy
Aspect ratio
Carbon nanotubes
Multilayers
Ethanol
Coloring Agents

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Kim, D., Kim, I., Jang, J., Nam, Y. T., Park, K., Kwon, K. O., ... Jung, H. T. (2017). One dimensional building blocks for molecular separation: Laminated graphitic nanoribbons. Nanoscale, 9(48), 19114-19123. https://doi.org/10.1039/c7nr05737g
Kim, Daewoo ; Kim, In ; Jang, Jidon ; Nam, Yoon Tae ; Park, Kangho ; Kwon, Ki Ok ; Cho, Kyoung Min ; Choi, Junghoon ; Kim, Daeok ; Kang, Kyoung Min ; Kim, Seon Joon ; Jung, Yousung ; Jung, Hee Tae. / One dimensional building blocks for molecular separation : Laminated graphitic nanoribbons. In: Nanoscale. 2017 ; Vol. 9, No. 48. pp. 19114-19123.
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abstract = "Herein, a new carbon-based graphitic membrane composed of laminated graphitic nanoribbons with a nanometer-scale width and micrometer-scale length, the graphitic nanoribbon membrane, is reported. Compared to the existing graphitic membranes, such as those composed of graphene oxide and carbon nanotubes, the developed membrane exhibits several unique characteristics in pressure-driven systems. First, the short diffusion length through its interlayer and the free volume of its stacked nanoribbons result in high solvent flux regardless of solvent polarity (water: 25-250 L m -2 h -1 bar -1 ; toluene: ∼975 L m -2 h -1 bar -1 ; hexane: ∼240 L m -2 h -1 bar -1 ). The flux value for water is one order of magnitude higher, while that for nonpolar organic solvents is two to three orders of magnitude greater than the corresponding flux values obtained through commercially available nanofiltration membranes. Second, the membrane exhibits good separation performance, particularly with organic dye molecules (∼100{\%}) and trivalent ions (∼60{\%}), maintaining high solvent flux during extended filtration. Finally, the membrane exhibits high stability in various fluids, e.g., 1 M HCl solution, 1 M NaOH solution, toluene, ethanol, and water, as well as under hydraulic pressures of up to 50 bar. Electron microscopy observation and simulation results suggest that such distinctive features of the membrane are related to the entangled thin multilayers of the graphitic nanoribbons, which possibly originate from the high aspect ratio and narrow width of the nanoribbons.",
author = "Daewoo Kim and In Kim and Jidon Jang and Nam, {Yoon Tae} and Kangho Park and Kwon, {Ki Ok} and Cho, {Kyoung Min} and Junghoon Choi and Daeok Kim and Kang, {Kyoung Min} and Kim, {Seon Joon} and Yousung Jung and Jung, {Hee Tae}",
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Kim, D, Kim, I, Jang, J, Nam, YT, Park, K, Kwon, KO, Cho, KM, Choi, J, Kim, D, Kang, KM, Kim, SJ, Jung, Y & Jung, HT 2017, 'One dimensional building blocks for molecular separation: Laminated graphitic nanoribbons', Nanoscale, vol. 9, no. 48, pp. 19114-19123. https://doi.org/10.1039/c7nr05737g

One dimensional building blocks for molecular separation : Laminated graphitic nanoribbons. / Kim, Daewoo; Kim, In; Jang, Jidon; Nam, Yoon Tae; Park, Kangho; Kwon, Ki Ok; Cho, Kyoung Min; Choi, Junghoon; Kim, Daeok; Kang, Kyoung Min; Kim, Seon Joon; Jung, Yousung; Jung, Hee Tae.

In: Nanoscale, Vol. 9, No. 48, 28.12.2017, p. 19114-19123.

Research output: Contribution to journalArticle

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T1 - One dimensional building blocks for molecular separation

T2 - Laminated graphitic nanoribbons

AU - Kim, Daewoo

AU - Kim, In

AU - Jang, Jidon

AU - Nam, Yoon Tae

AU - Park, Kangho

AU - Kwon, Ki Ok

AU - Cho, Kyoung Min

AU - Choi, Junghoon

AU - Kim, Daeok

AU - Kang, Kyoung Min

AU - Kim, Seon Joon

AU - Jung, Yousung

AU - Jung, Hee Tae

PY - 2017/12/28

Y1 - 2017/12/28

N2 - Herein, a new carbon-based graphitic membrane composed of laminated graphitic nanoribbons with a nanometer-scale width and micrometer-scale length, the graphitic nanoribbon membrane, is reported. Compared to the existing graphitic membranes, such as those composed of graphene oxide and carbon nanotubes, the developed membrane exhibits several unique characteristics in pressure-driven systems. First, the short diffusion length through its interlayer and the free volume of its stacked nanoribbons result in high solvent flux regardless of solvent polarity (water: 25-250 L m -2 h -1 bar -1 ; toluene: ∼975 L m -2 h -1 bar -1 ; hexane: ∼240 L m -2 h -1 bar -1 ). The flux value for water is one order of magnitude higher, while that for nonpolar organic solvents is two to three orders of magnitude greater than the corresponding flux values obtained through commercially available nanofiltration membranes. Second, the membrane exhibits good separation performance, particularly with organic dye molecules (∼100%) and trivalent ions (∼60%), maintaining high solvent flux during extended filtration. Finally, the membrane exhibits high stability in various fluids, e.g., 1 M HCl solution, 1 M NaOH solution, toluene, ethanol, and water, as well as under hydraulic pressures of up to 50 bar. Electron microscopy observation and simulation results suggest that such distinctive features of the membrane are related to the entangled thin multilayers of the graphitic nanoribbons, which possibly originate from the high aspect ratio and narrow width of the nanoribbons.

AB - Herein, a new carbon-based graphitic membrane composed of laminated graphitic nanoribbons with a nanometer-scale width and micrometer-scale length, the graphitic nanoribbon membrane, is reported. Compared to the existing graphitic membranes, such as those composed of graphene oxide and carbon nanotubes, the developed membrane exhibits several unique characteristics in pressure-driven systems. First, the short diffusion length through its interlayer and the free volume of its stacked nanoribbons result in high solvent flux regardless of solvent polarity (water: 25-250 L m -2 h -1 bar -1 ; toluene: ∼975 L m -2 h -1 bar -1 ; hexane: ∼240 L m -2 h -1 bar -1 ). The flux value for water is one order of magnitude higher, while that for nonpolar organic solvents is two to three orders of magnitude greater than the corresponding flux values obtained through commercially available nanofiltration membranes. Second, the membrane exhibits good separation performance, particularly with organic dye molecules (∼100%) and trivalent ions (∼60%), maintaining high solvent flux during extended filtration. Finally, the membrane exhibits high stability in various fluids, e.g., 1 M HCl solution, 1 M NaOH solution, toluene, ethanol, and water, as well as under hydraulic pressures of up to 50 bar. Electron microscopy observation and simulation results suggest that such distinctive features of the membrane are related to the entangled thin multilayers of the graphitic nanoribbons, which possibly originate from the high aspect ratio and narrow width of the nanoribbons.

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