High SF6/N2 selectivity in a hydrothermally stable zirconium-based metal-organic framework

Min Bum Kim, Tae Ung Yoon, Do Young Hong, Seo Yul Kim, Seung Joon Lee, Seung Ik Kim, Su Kyung Lee, Jong San Chang, Youn Sang Bae

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

A hydrothermally stable, zirconium-based metal-organic framework called UiO-66-Zr has been studied for its ability to separate SF6 from SF6/N2 mixtures. The ideal adsorbed solution theory (IAST)-predicted selectivities based on single-component isotherms and the dynamic breakthrough calculations for mixture conditions demonstrate that UiO-66-Zr can effectively separate SF6/N2 mixtures. Remarkably, UiO-66-Zr exhibits the highest SF6/N2 selectivity values ever reported. In comparison with zeolite-13X, which is a benchmark adsorbent, UiO-66-Zr clearly shows enhanced separation performance, especially for the diluted SF6 concentration. Moreover, UiO-66-Zr maintains its adsorption capacity even after one month of storage under ambient conditions. UiO-66-Zr may be considered as a promising adsorbent for SF6/N2 separations.

Original languageEnglish
Pages (from-to)315-321
Number of pages7
JournalChemical Engineering Journal
Volume276
DOIs
Publication statusPublished - 2015 Sep 5

All Science Journal Classification (ASJC) codes

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

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