Organosilica functionalized zeolitic imidazolate framework ZIF-90 membrane for CO2/CH4 separation

Research output: Contribution to journal › Article › Research › peer review

Authors

  • Aisheng Huang
  • Qian Liu
  • Nanyi Wang
  • Jürgen Caro

Research Organisations

External Research Organisations

  • Chinese Academy of Sciences (CAS)
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Details

Original languageEnglish
Pages (from-to)18-22
Number of pages5
JournalMicroporous and Mesoporous Materials
Volume192
Early online date27 Sept 2013
Publication statusPublished - 1 Jul 2014

Abstract

The separation of CO2/CH4 is reported by using 3-aminopropyltriethoxysilane (APTES) modified zeolitic imidazolate framework ZIF-90 membrane. The as-prepared ZIF-90 membrane was modified by APTES based on an imine condensation reaction between the free aldehyde groups of the ZIF-90 frameworks and the amino groups of APTES. After APTES modification, the morphology, purity and crystallinity of the ZIF-90 membrane keep unchanged. Attributing to both pore mouth narrowing and sealing of invisible intercrystalline defects of the polycrystalline ZIF-90 layer, the separation performances of the APTES-modified ZIF-90 membrane are remarkably enhanced. For the separation of equimolar CO2/CH4 mixture at 225 °C and 1 bar, a CO2 permeance of 1.26 × 10-8 mol m -2 s-1 Pa-1 and a CO2/CH4 selectivity of 4.7 are obtained, which is of promising in the potential application of CO2 separation and removal.

Keywords

    Metal-organic frameworks membranes, Post-functionalization, ZIF-90 membrane

ASJC Scopus subject areas

Cite this

Organosilica functionalized zeolitic imidazolate framework ZIF-90 membrane for CO2/CH4 separation. / Huang, Aisheng; Liu, Qian; Wang, Nanyi et al.
In: Microporous and Mesoporous Materials, Vol. 192, 01.07.2014, p. 18-22.

Research output: Contribution to journal › Article › Research › peer review

Huang A, Liu Q, Wang N, Caro J. Organosilica functionalized zeolitic imidazolate framework ZIF-90 membrane for CO2/CH4 separation. Microporous and Mesoporous Materials. 2014 Jul 1;192:18-22. Epub 2013 Sept 27. doi: 10.1016/j.micromeso.2013.09.025
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title = "Organosilica functionalized zeolitic imidazolate framework ZIF-90 membrane for CO2/CH4 separation",
abstract = "The separation of CO2/CH4 is reported by using 3-aminopropyltriethoxysilane (APTES) modified zeolitic imidazolate framework ZIF-90 membrane. The as-prepared ZIF-90 membrane was modified by APTES based on an imine condensation reaction between the free aldehyde groups of the ZIF-90 frameworks and the amino groups of APTES. After APTES modification, the morphology, purity and crystallinity of the ZIF-90 membrane keep unchanged. Attributing to both pore mouth narrowing and sealing of invisible intercrystalline defects of the polycrystalline ZIF-90 layer, the separation performances of the APTES-modified ZIF-90 membrane are remarkably enhanced. For the separation of equimolar CO2/CH4 mixture at 225 °C and 1 bar, a CO2 permeance of 1.26 × 10-8 mol m -2 s-1 Pa-1 and a CO2/CH4 selectivity of 4.7 are obtained, which is of promising in the potential application of CO2 separation and removal.",
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TY - JOUR

T1 - Organosilica functionalized zeolitic imidazolate framework ZIF-90 membrane for CO2/CH4 separation

AU - Huang, Aisheng

AU - Liu, Qian

AU - Wang, Nanyi

AU - Caro, Jürgen

PY - 2014/7/1

Y1 - 2014/7/1

N2 - The separation of CO2/CH4 is reported by using 3-aminopropyltriethoxysilane (APTES) modified zeolitic imidazolate framework ZIF-90 membrane. The as-prepared ZIF-90 membrane was modified by APTES based on an imine condensation reaction between the free aldehyde groups of the ZIF-90 frameworks and the amino groups of APTES. After APTES modification, the morphology, purity and crystallinity of the ZIF-90 membrane keep unchanged. Attributing to both pore mouth narrowing and sealing of invisible intercrystalline defects of the polycrystalline ZIF-90 layer, the separation performances of the APTES-modified ZIF-90 membrane are remarkably enhanced. For the separation of equimolar CO2/CH4 mixture at 225 °C and 1 bar, a CO2 permeance of 1.26 × 10-8 mol m -2 s-1 Pa-1 and a CO2/CH4 selectivity of 4.7 are obtained, which is of promising in the potential application of CO2 separation and removal.

AB - The separation of CO2/CH4 is reported by using 3-aminopropyltriethoxysilane (APTES) modified zeolitic imidazolate framework ZIF-90 membrane. The as-prepared ZIF-90 membrane was modified by APTES based on an imine condensation reaction between the free aldehyde groups of the ZIF-90 frameworks and the amino groups of APTES. After APTES modification, the morphology, purity and crystallinity of the ZIF-90 membrane keep unchanged. Attributing to both pore mouth narrowing and sealing of invisible intercrystalline defects of the polycrystalline ZIF-90 layer, the separation performances of the APTES-modified ZIF-90 membrane are remarkably enhanced. For the separation of equimolar CO2/CH4 mixture at 225 °C and 1 bar, a CO2 permeance of 1.26 × 10-8 mol m -2 s-1 Pa-1 and a CO2/CH4 selectivity of 4.7 are obtained, which is of promising in the potential application of CO2 separation and removal.

KW - Metal-organic frameworks membranes

KW - Post-functionalization

KW - ZIF-90 membrane

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JO - Microporous and Mesoporous Materials

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