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.
Bibliographical noteFunding Information:
This work was supported (in part) by the Yonsei University Future-leading Research Initiative of 2014 (RMS2 2014-22-0148). Also, we would like to acknowledge the financial support from the R&D Convergence Program of MSIP (Ministry of Science, ICT and Future Planning) and NST (National Research Council of Science & Technology) of Republic of Korea ( CRC-14-1-KRICT ). Appendix A
© 2015 Elsevier B.V.
All Science Journal Classification (ASJC) codes
- Environmental Chemistry
- Chemical Engineering(all)
- Industrial and Manufacturing Engineering