MXene assisted preparation of well-intergrown ZIF-67 membrane for helium separation

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  • South China University of Technology
  • Tsinghua University
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Original languageEnglish
Article number120432
JournalJournal of membrane science
Volume652
Early online date19 Mar 2022
Publication statusPublished - 15 Jun 2022

Abstract

Well-intergrown ZIF-67 membranes were prepared by the assistance of laminarly stacked MXene films. Several analytic methods have found that the MXene films, despite being as thin as 90 nm, could host a high amount of Co (II) ions. The Co (II)-MXene films acted as buffer layer and provided anchor sites for nucleation. After solvothermal synthesis, well-intergrown ZIF-67 membranes with a thickness about 4 μm were formed on Co (II)-MXene modified α-Al2O3 disks. Single-gas and mixed-gas permeation experiments showed that the ZIF-67 membranes exhibited excellent gas separation performance and long-term chemical (against CO2 and H2O) and thermal stabilities with a He permeance greater than 6.6 × 10−8 mol m–2 s–1 Pa–1 and selectivities above 13 for the gas mixtures He/N2 and He/CH4, superior to the state-of-the-art MOF membranes.

Keywords

    2D laminar membrane, Gas separation, Helium recovery, MXene, ZIF-67 membrane

ASJC Scopus subject areas

Cite this

MXene assisted preparation of well-intergrown ZIF-67 membrane for helium separation. / Zhao, Zhijun; Ding, Li; Hinterding, Richard et al.
In: Journal of membrane science, Vol. 652, 120432, 15.06.2022.

Research output: Contribution to journalArticleResearchpeer review

Zhao Z, Ding L, Hinterding R, Mundstock A, Belke C, Haug RJ et al. MXene assisted preparation of well-intergrown ZIF-67 membrane for helium separation. Journal of membrane science. 2022 Jun 15;652:120432. Epub 2022 Mar 19. doi: 10.1016/j.memsci.2022.120432
Zhao, Zhijun ; Ding, Li ; Hinterding, Richard et al. / MXene assisted preparation of well-intergrown ZIF-67 membrane for helium separation. In: Journal of membrane science. 2022 ; Vol. 652.
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abstract = "Well-intergrown ZIF-67 membranes were prepared by the assistance of laminarly stacked MXene films. Several analytic methods have found that the MXene films, despite being as thin as 90 nm, could host a high amount of Co (II) ions. The Co (II)-MXene films acted as buffer layer and provided anchor sites for nucleation. After solvothermal synthesis, well-intergrown ZIF-67 membranes with a thickness about 4 μm were formed on Co (II)-MXene modified α-Al2O3 disks. Single-gas and mixed-gas permeation experiments showed that the ZIF-67 membranes exhibited excellent gas separation performance and long-term chemical (against CO2 and H2O) and thermal stabilities with a He permeance greater than 6.6 × 10−8 mol m–2 s–1 Pa–1 and selectivities above 13 for the gas mixtures He/N2 and He/CH4, superior to the state-of-the-art MOF membranes.",
keywords = "2D laminar membrane, Gas separation, Helium recovery, MXene, ZIF-67 membrane",
author = "Zhijun Zhao and Li Ding and Richard Hinterding and Alexander Mundstock and Christopher Belke and Haug, {Rolf J.} and Haihui Wang and Armin Feldhoff",
note = "Funding Information: This work was financially supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation, 409987259 ) and the National Natural Science Foundation of China ( 22008077 ). The authors thank M.Sc. F. Rieck genannt Best for his assistance during the infrared spectroscopy measurements and Dr. R. Almeev for access to the JSM-7610FPlus scanning electron microscope as well as F. Steinbach for the energy-dispersive X-ray analysis. ",
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T1 - MXene assisted preparation of well-intergrown ZIF-67 membrane for helium separation

AU - Zhao, Zhijun

AU - Ding, Li

AU - Hinterding, Richard

AU - Mundstock, Alexander

AU - Belke, Christopher

AU - Haug, Rolf J.

AU - Wang, Haihui

AU - Feldhoff, Armin

N1 - Funding Information: This work was financially supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation, 409987259 ) and the National Natural Science Foundation of China ( 22008077 ). The authors thank M.Sc. F. Rieck genannt Best for his assistance during the infrared spectroscopy measurements and Dr. R. Almeev for access to the JSM-7610FPlus scanning electron microscope as well as F. Steinbach for the energy-dispersive X-ray analysis.

PY - 2022/6/15

Y1 - 2022/6/15

N2 - Well-intergrown ZIF-67 membranes were prepared by the assistance of laminarly stacked MXene films. Several analytic methods have found that the MXene films, despite being as thin as 90 nm, could host a high amount of Co (II) ions. The Co (II)-MXene films acted as buffer layer and provided anchor sites for nucleation. After solvothermal synthesis, well-intergrown ZIF-67 membranes with a thickness about 4 μm were formed on Co (II)-MXene modified α-Al2O3 disks. Single-gas and mixed-gas permeation experiments showed that the ZIF-67 membranes exhibited excellent gas separation performance and long-term chemical (against CO2 and H2O) and thermal stabilities with a He permeance greater than 6.6 × 10−8 mol m–2 s–1 Pa–1 and selectivities above 13 for the gas mixtures He/N2 and He/CH4, superior to the state-of-the-art MOF membranes.

AB - Well-intergrown ZIF-67 membranes were prepared by the assistance of laminarly stacked MXene films. Several analytic methods have found that the MXene films, despite being as thin as 90 nm, could host a high amount of Co (II) ions. The Co (II)-MXene films acted as buffer layer and provided anchor sites for nucleation. After solvothermal synthesis, well-intergrown ZIF-67 membranes with a thickness about 4 μm were formed on Co (II)-MXene modified α-Al2O3 disks. Single-gas and mixed-gas permeation experiments showed that the ZIF-67 membranes exhibited excellent gas separation performance and long-term chemical (against CO2 and H2O) and thermal stabilities with a He permeance greater than 6.6 × 10−8 mol m–2 s–1 Pa–1 and selectivities above 13 for the gas mixtures He/N2 and He/CH4, superior to the state-of-the-art MOF membranes.

KW - 2D laminar membrane

KW - Gas separation

KW - Helium recovery

KW - MXene

KW - ZIF-67 membrane

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