One-Pot Synthesis of High-Flux b-Oriented MFI Zeolite Membranes for Xe Recovery

Xuerui Wang*, Pelin Karakiliç, Xinlei Liu, Meixia Shan, Arian Nijmeijer, Louis Winnubst, Jorge Gascon, Freek Kapteijn

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

We demonstrate that b-oriented MFI (Mobil Five) zeolite membranes can be manufactured by in situ crystallization using an intermediate amorphous SiO2 layer. The improved in-plane growth by using a zeolite growth modifier leads to fusion of independent crystals and eliminates boundary gaps, giving good selectivity in the separation of CO2/Xe mixtures. The fast diffusion of CO2 dominates the overall membrane selectivity toward the CO2/Xe mixture. Because of the straight and short [010] channels, the obtained CO2 permeation fluxes are several orders of magnitude higher than those of carbon molecular sieving membranes and polymeric membranes, opening opportunities for Xe recovery from waste anesthetic gas.

Original languageEnglish
Pages (from-to)33574-33580
Number of pages7
JournalACS Applied Materials and Interfaces
Volume10
Issue number39
DOIs
Publication statusPublished - 3 Oct 2018

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Keywords

  • UT-Hybrid-D
  • carbon dioxide
  • gas separation
  • MFI zeolite membrane
  • xenon
  • anesthetic

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