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Preparation of hybrid membranes by incorporating hydrophilic UiO-66 nanoparticles for high-performance pervaporation dehydration of aprotic solvents

Authors
  • Ma, Wenzhong1, 1
  • Li, Taiyu1
  • Zhang, Qi1
  • Zhong, Jing1
  • Matsuyama, Hideto2
  • 1 Changzhou University, Changzhou, 213164, China , Changzhou (China)
  • 2 Kobe University, 1-1 Rokkodai, Nada-ku, Kobe, 657-8501, Japan , Kobe (Japan)
Type
Published Article
Journal
Journal of Nanoparticle Research
Publisher
Springer-Verlag
Publication Date
Feb 29, 2020
Volume
22
Issue
3
Identifiers
DOI: 10.1007/s11051-020-4778-9
Source
Springer Nature
Keywords
License
Yellow

Abstract

Hydrophilic UiO-66 crystals with superior water adsorption ability were synthesized and incorporated into the polyimide (PI) membrane for efficient aprotic solvent separation via pervaporation. The effect of the different UiO-66 addition in the pyromellitic dianhydride (PMDA)-2, 2-bis[4-(4-amlnophenoxy)phenyl]propane (BAPP)-based PI membrane on the membrane structure, thermal stability, surface hydrophilicity, solvent-resistant, and pervaporation performance was systematically studied. The UiO-66/PI hybrid membranes with small amount content (2 wt%) exhibited high hydrophilicity and excellent swelling resistance due to the superb dispersion benefiting from the excellent complexation of UiO-66 and PI chain. The effects of operational variables such as operating temperature and concentration of feed solution on the pervaporation separation performance of the hybrid membranes with different UiO-66 loadings were investigated. When the mass fraction of UiO-66 was 2 wt%, the hybrid membranes show the permeation flux of 109.7 and 57.1 g/(m2h) and separation factor of 34.1 and 133.9, respectively, for DMF/H2O and DMAc/H2O systems. Graphical abstract

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