Synthesis of superhydrophilic Nafion based nanocomposite hollow fiber membranes for water vapor separation

Pravin G. Ingole, Muhammad Irshad Baig, Wook Choi, Xinghai An, Won Kil Choi, Jae deok Jeon, Hyung Keun Lee

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)

Abstract

Mesoporous SiO2 nanoparticles are explored as a potential hydrophilic inorganic filler to recognize nanocomposite membranes with Nafion and ionic liquid (IL) tetramethylammonium hydroxide (TMAOH) for water vapor removal applications under condensed relative humidity. Nanocomposite membranes are obtained by inserting SiO2 nanoparticles in Nafion–ionic liquid coating solution in different concentrations of Nafion, thereby providing increased adsorption sites for water vapor. These nanocomposite membranes are prepared on the surface of polysulfone (PSf) hollow fiber membranes. The main objective of this study was to prepare Nafion–IL–SiO2 nanocomposite membranes for direct water vapor mixture gas separation in applications with the aim of increasing water vapor permeance and keeping up the selectivity. The application of the Nafion–IL–SiO2 nanocomposite membranes in water vapor mixture gas separation was demonstrated. As a result, the high water vapor permeance of 2131 GPU was achieved for the PSf–Nafion–IL–SiO2-M2 membrane and high H2O/N2 selectivity of 130 was obtained for the PSf–Nafion–IL–SiO2-M3 membrane at pressure 3 bar and temperature 30 °C.
Original languageEnglish
Pages (from-to)45-51
Number of pages7
JournalChemical engineering research and design (Transactions of the Institution of Chemical Engineers, part A)
Volume127
DOIs
Publication statusPublished - 1 Nov 2017
Externally publishedYes

Keywords

  • Ionic liquid
  • Nafion
  • Nanocomposite membranes
  • Polysulfone hollow fiber
  • SiO2 nanoparticles
  • Water vapor separation

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