Synthesis, characterization and application of PVA/ionic liquid mixed matrix membranes for pervaporation dehydration of isopropanol

Ganesh B. Thorat; Smita Gupta; Z. V. P. Murthy

doi:10.1016/j.cjche.2017.02.011

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Synthesis, characterization and application of PVA/ionic liquid mixed matrix membranes for pervaporation dehydration of isopropanol

Separation Science and Engineering | Updated：2026-01-06

- Synthesis, characterization and application of PVA/ionic liquid mixed matrix membranes for pervaporation dehydration of isopropanol
- Chinese Journal of Chemical Engineering Vol. 25, Issue 10, Pages: 1402-1411(2017)
- Affiliations：
  
  Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat 395007, Gujarat,India
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2017.02.011
  CLC：
- Published：2017
- Accepted：
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Ganesh B. Thorat, Smita Gupta, Z. V. P. Murthy. Synthesis, characterization and application of PVA/ionic liquid mixed matrix membranes for pervaporation dehydration of isopropanol[J]. , 2017, 25(10): 1402-1411.
DOI：

Ganesh B. Thorat, Smita Gupta, Z. V. P. Murthy. Synthesis, characterization and application of PVA/ionic liquid mixed matrix membranes for pervaporation dehydration of isopropanol[J]. , 2017, 25(10): 1402-1411. DOI： 10.1016/j.cjche.2017.02.011.

摘要

Abstract

In this study

polyvinyl alcohol (PVA)-ionic liquid (IL) membranes were prepared for the separation of isopropyl alcohol (IPA)-water azeotropic mixtures by pervaporation. PVA-IL composite membranes were prepared by simple solvent evaporation method using four ILs

viz

-butyl-3-methylimidazolium chloride (BMIMCl)

1-hexyl-3-methylimidazolium chloride (HMIMCl)

1-hexyl-3-methylimidazolium tetrafluoroborate (HMIMBF4) and 1-octyl-3-methylimidazolium chloride (OMIMCl). Three ILs were used to study the effect of alkyl chain on the pervaporation performance. The study had focused on the effect feed water concentration from 10%-40% and effect of feed temperature from 50-80℃. Physiochemical properties of all the membranes were studied using Fourier transform infrared spectroscopy (FTIR)

scanning electron microscopy (SEM) and contact angle measurement. The Arrhenius activation energies for permeation were estimated to be in the range 4-12 kJ·mol

-1

from the temperature dependent permeation values.

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