Sod-ZMOF/Matrimid® mixed matrix membranes for CO2 separation

Ayşe Kiliç; Çiğdem Atalay-Oral; Ahmet Sirkecioğlu; S. Birgül Tantekin-Ersolmaz; M. Göktuğ Ahunbay

doi:10.1016/j.memsci.2015.04.003

Sod-ZMOF/Matrimid^® mixed matrix membranes for CO₂ separation

Ayşe Kiliç, Çiğdem Atalay-Oral, Ahmet Sirkecioğlu, S. Birgül Tantekin-Ersolmaz, M. Göktuğ Ahunbay^*

^*Corresponding author for this work

Department of Chemical Engineering

Istanbul Technical University

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

38 Citations (Scopus)

Abstract

In this study, sod-ZMOF (zeolite-like metal organic framework with sodalite topology) crystals were synthesized in order to prepare polymer/sod-ZMOF mixed matrix membranes (MMMs) for CO₂/CH₄ separation. The sod-ZMOF crystals were then incorporated into Matrimid^® polyimide matrix to form dense MMMs by a solvent-casting method. After the analyses of structural and thermal characteristics of the prepared membranes, their CO₂/CH₄ separation performances were determined by measuring single and mixed gas permeabilities with a constant volume-variable pressure method at steady-state. SEM images of the MMMs showed that ZMOF particles were dispersed homogeneously in the polymer matrix and there were no significant voids or defects at the filler/polymer interface. While single gas permeability measurements of the membranes showed that CH₄ and CO₂ permeability increased without any significant change in the ideal selectivity, binary gas permeability measurements indicated that both CO₂ permeability and selectivity were enhanced, with the increasing amount of incorporated MOF indicating strong adsorption selectivity of sod-ZMOF for CO₂.

Original language	English
Pages (from-to)	81-89
Number of pages	9
Journal	Journal of Membrane Science
Volume	489
DOIs	https://doi.org/10.1016/j.memsci.2015.04.003
Publication status	Published - 1 Sept 2015

Bibliographical note

Publisher Copyright:
© 2015 Elsevier B.V.

Funding

This work was supported in part by the Scientific and Technological Research Council of Turkey (TUBITAK) through Grant no. 113M776 .

Funders	Funder number
TUBITAK	113M776
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu

Keywords

CO separation
Gas separation
MOF
Mixed-matrix membrane

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.memsci.2015.04.003

Cite this

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title = "Sod-ZMOF/Matrimid{\textregistered} mixed matrix membranes for CO2 separation",

abstract = "In this study, sod-ZMOF (zeolite-like metal organic framework with sodalite topology) crystals were synthesized in order to prepare polymer/sod-ZMOF mixed matrix membranes (MMMs) for CO2/CH4 separation. The sod-ZMOF crystals were then incorporated into Matrimid{\textregistered} polyimide matrix to form dense MMMs by a solvent-casting method. After the analyses of structural and thermal characteristics of the prepared membranes, their CO2/CH4 separation performances were determined by measuring single and mixed gas permeabilities with a constant volume-variable pressure method at steady-state. SEM images of the MMMs showed that ZMOF particles were dispersed homogeneously in the polymer matrix and there were no significant voids or defects at the filler/polymer interface. While single gas permeability measurements of the membranes showed that CH4 and CO2 permeability increased without any significant change in the ideal selectivity, binary gas permeability measurements indicated that both CO2 permeability and selectivity were enhanced, with the increasing amount of incorporated MOF indicating strong adsorption selectivity of sod-ZMOF for CO2.",

keywords = "CO separation, Gas separation, MOF, Mixed-matrix membrane",

author = "Ay{\c s}e Kili{\c c} and {\c C}iğdem Atalay-Oral and Ahmet Sirkecioğlu and Tantekin-Ersolmaz, {S. Birg{\"u}l} and Ahunbay, {M. G{\"o}ktuğ}",

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year = "2015",

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day = "1",

doi = "10.1016/j.memsci.2015.04.003",

language = "English",

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AU - Kiliç, Ayşe

AU - Atalay-Oral, Çiğdem

AU - Sirkecioğlu, Ahmet

AU - Tantekin-Ersolmaz, S. Birgül

AU - Ahunbay, M. Göktuğ

PY - 2015/9/1

Y1 - 2015/9/1

N2 - In this study, sod-ZMOF (zeolite-like metal organic framework with sodalite topology) crystals were synthesized in order to prepare polymer/sod-ZMOF mixed matrix membranes (MMMs) for CO2/CH4 separation. The sod-ZMOF crystals were then incorporated into Matrimid® polyimide matrix to form dense MMMs by a solvent-casting method. After the analyses of structural and thermal characteristics of the prepared membranes, their CO2/CH4 separation performances were determined by measuring single and mixed gas permeabilities with a constant volume-variable pressure method at steady-state. SEM images of the MMMs showed that ZMOF particles were dispersed homogeneously in the polymer matrix and there were no significant voids or defects at the filler/polymer interface. While single gas permeability measurements of the membranes showed that CH4 and CO2 permeability increased without any significant change in the ideal selectivity, binary gas permeability measurements indicated that both CO2 permeability and selectivity were enhanced, with the increasing amount of incorporated MOF indicating strong adsorption selectivity of sod-ZMOF for CO2.

AB - In this study, sod-ZMOF (zeolite-like metal organic framework with sodalite topology) crystals were synthesized in order to prepare polymer/sod-ZMOF mixed matrix membranes (MMMs) for CO2/CH4 separation. The sod-ZMOF crystals were then incorporated into Matrimid® polyimide matrix to form dense MMMs by a solvent-casting method. After the analyses of structural and thermal characteristics of the prepared membranes, their CO2/CH4 separation performances were determined by measuring single and mixed gas permeabilities with a constant volume-variable pressure method at steady-state. SEM images of the MMMs showed that ZMOF particles were dispersed homogeneously in the polymer matrix and there were no significant voids or defects at the filler/polymer interface. While single gas permeability measurements of the membranes showed that CH4 and CO2 permeability increased without any significant change in the ideal selectivity, binary gas permeability measurements indicated that both CO2 permeability and selectivity were enhanced, with the increasing amount of incorporated MOF indicating strong adsorption selectivity of sod-ZMOF for CO2.

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KW - MOF

KW - Mixed-matrix membrane

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