Effect of ZIF-71 Particle Size on Free-Standing ZIF-71/PDMS Composite Membrane Performances for Ethanol and 1-Butanol Removal from Water through Pervaporation

Huidan Yin, Afsaneh Khosravi, Liana O'Connor, Alexa Q. Tagaban, Lindsay Wilson, Brandon Houck, Qianlang Liu, Marylaura Thomas

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

This paper reports the effects of synthesis time, temperature, and reactant ratio on ZIF-71 particle size and the effect of particle size on membrane performance. Temperature has the greatest effect on particle size, as the synthesis temperature varies from -20 °C to 35 °C. The synthesized ZIF-71 has particle diameters ranging from 150 nm to 1 μm. ZIF-71 particle size is critical in ZIF-71/PDMS composite membrane performance for ethanol and 1-butanol removal from water through pervaporation. The membranes that are made with micrometer-sized ZIF-71 particles exhibit higher alcohol/water selectivity than those with smaller particles. Both alcohol and water permeability increase when larger-sized ZIF-71 particles are incorporated, because the pathways through the membranes are less tortuous. (Figure Presented).

Original languageEnglish (US)
Pages (from-to)9167-9176
Number of pages10
JournalIndustrial and Engineering Chemistry Research
Volume56
Issue number32
DOIs
StatePublished - Aug 16 2017

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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