Uniformly Oriented Zeolite ZSM-5 Membranes with Tunable Wettability on a Porous Ceramic

Donglong Fu, Joel E. Schmidt, Paul Pletcher, Pelin Karakiliç, Xinwei Ye, Carolien M. Vis, Pieter C.A. Bruijnincx, Matthias Filez, Laurens D.B. Mandemaker, Louis Winnubst, Bert M. Weckhuysen*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

5 Citations (Scopus)
57 Downloads (Pure)

Abstract

Facile fabrication of well-intergrown, oriented zeolite membranes with tunable chemical properties on commercially proven substrates is crucial to broadening their applications for separation and catalysis. Rationally determined electrostatic adsorption can enable the direct attachment of a b-oriented silicalite-1 monolayer on a commercial porous ceramic substrate. Homoepitaxially oriented, well-intergrown zeolite ZSM-5 membranes with a tunable composition of Si/Al=25–∞ were obtained by secondary growth of the monolayer. Intercrystallite defects can be eliminated by using Na+ as the mineralizer to promote lateral crystal growth and suppress surface nucleation in the direction of the straight channels, as evidenced by atomic force microscopy measurements. Water permeation testing shows tunable wettability from hydrophobic to highly hydrophilic, giving the potential for a wide range of applications.

Original languageEnglish
Pages (from-to)12458-12462
Number of pages5
JournalAngewandte Chemie - International Edition
Volume57
Issue number38
DOIs
Publication statusPublished - 17 Sep 2018

Keywords

  • UT-Hybrid-D
  • inorganic membranes
  • separation
  • silicalite-1
  • zeolites
  • catalysis

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