Regulatable pervaporation performance of Zn-MOFs/polydimethylsiloxane mixed matrix pervaporation membranes

Guorong Wu; Qiangwen Fan; Wenjie Sun; Zhiwu Yu; Zhiqian Jia; Jianguo Ma

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Regulatable pervaporation performance of Zn-MOFs/polydimethylsiloxane mixed matrix pervaporation membranes

Regular | Updated：2026-01-06

- Regulatable pervaporation performance of Zn-MOFs/polydimethylsiloxane mixed matrix pervaporation membranes
- Chinese Journal of Chemical Engineering Vol. 42, Issue 2, Pages: 312-318(2022)
- Affiliations：
  
  1. Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, East China University of Technology,Nanchang,China,330013
  2. Foshan (Southern China) Institute for New Materials,Foshan,China,528247
  3. State Key Laboratory of Nuclear Resources and Environment, School of Biology, Chemistry and Material Science, East China University of Technology,Nanchang,China,330013
  4. Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Material Science, East China University of Technology,Nanchang,China,330013
  5. Lab for Membrane Science and Technology, College of Chemistry, Beijing Normal University,Beijing,China,100875
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2022
- Accepted：
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Guorong Wu, Qiangwen Fan, Wenjie Sun, Zhiwu Yu, Zhiqian Jia, Jianguo Ma. Regulatable pervaporation performance of Zn-MOFs/polydimethylsiloxane mixed matrix pervaporation membranes[J]. Chinese Journal of Chemical Engineering, 2022, 42(2): 312-318.
DOI：

Guorong Wu, Qiangwen Fan, Wenjie Sun, Zhiwu Yu, Zhiqian Jia, Jianguo Ma. Regulatable pervaporation performance of Zn-MOFs/polydimethylsiloxane mixed matrix pervaporation membranes[J]. Chinese Journal of Chemical Engineering, 2022, 42(2): 312-318. DOI：

摘要

Abstract

Pervaporation (PV) is an emerging separation technique for liquid mixture. Mixed matrix membranes (MMMs) often demonstrate trade-off relationship between separation factor and flux. In this study

by changing the organic linkers (2-methyl imidazolate

imidazole-2-carboxaldehyde

2-ethyl imidazolate)

ZIF-8

ZIF-90 and MAF-6 were prepared and filled in polydimethylsiloxane (PDMS) membranes for dealcoholization of 5% (mass)

-butanol solution

and the membranes properties and pervaporation performances were adjusted. Compared with the pure PDMS membrane

the addition of ZIF-8 resulted in a 9% increase in flux (1136 g·m

-2

·h

-1

) and a 22.5% increase in separation factor (28.3)

displaying anti-trade-off effect. For the MAF-6/PDMS MMMs (2.0% mass loading)

the pervaporation separation index (PSI) and separation factor were 32347 g·m

-2

·h

-1

and 58.6 respectively (increased by 34% and 154% in contrast with that of the pure PDMS membrane)

and the corresponding permeation flux was 552 g·m

-2

·h

-1

presenting great potential in the removal butanol from water. It was deduced that the large aperture size combined with moderate hydrophobicity of metal-organic frameworks (MOFs) fa

vor the concurrent increase in permeability and selectivity.

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