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

Aisheng Huang; Qian Liu; Nanyi Wang; Jürgen Caro

doi:10.1016/j.micromeso.2013.09.025

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

Aisheng Huang^*
, Qian Liu
, Nanyi Wang
, Jürgen Caro

^*Corresponding author for this work

CAS - Ningbo Institute of Material Technology and Engineering
Leibniz University Hannover

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

83 Scopus citations

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.

Original language	English
Pages (from-to)	18-22
Number of pages	5
Journal	Microporous and Mesoporous Materials
Volume	192
DOIs	https://doi.org/10.1016/j.micromeso.2013.09.025
State	Published - 1 Jul 2014
Externally published	Yes

Keywords

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

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10.1016/j.micromeso.2013.09.025

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@article{8426ba6a8f9d4e81824a7f8308f5d31c,

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.",

keywords = "Metal-organic frameworks membranes, Post-functionalization, ZIF-90 membrane",

author = "Aisheng Huang and Qian Liu and Nanyi Wang and J{\"u}rgen Caro",

year = "2014",

month = jul,

day = "1",

doi = "10.1016/j.micromeso.2013.09.025",

language = "英语",

volume = "192",

pages = "18--22",

journal = "Microporous and Mesoporous Materials",

issn = "1387-1811",

publisher = "Elsevier B.V.",

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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

UR - https://www.scopus.com/pages/publications/84900501644

U2 - 10.1016/j.micromeso.2013.09.025

DO - 10.1016/j.micromeso.2013.09.025

M3 - 文章

AN - SCOPUS:84900501644

SN - 1387-1811

VL - 192

SP - 18

EP - 22

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

ER -

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

Abstract

Keywords

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