Open-Pore Two-Dimensional MFI Zeolite Nanosheets for the Fabrication of Hydrocarbon-Isomer-Selective Membranes on Porous Polymer Supports

Han Zhang, Qiang Xiao, Xianghai Guo, Najun Li, Prashant Kumar, Neel Rangnekar, Mi Young Jeon, Shaeel Al-Thabaiti, Katabathini Narasimharao, Sulaiman Nasir Basahel, Berna Topuz, Frank J. Onorato, Christopher W. Macosko, K. Andre Mkhoyan, Michael Tsapatsis

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Abstract

Two-dimensional zeolite nanosheets that do not contain any organic structure-directing agents were prepared from a multilamellar MFI (ML-MFI) zeolite. ML-MFI was first exfoliated by melt compounding and then detemplated by treatment with a mixture of H2SO4and H2O2(piranha solution). The obtained OSDA-free MFI nanosheets disperse well in water and can be used for coating applications. Deposits made on porous polybenzimidazole (PBI) supports by simple filtration of these suspensions exhibit an n-butane/isobutane selectivity of 5.4, with an n-butane permeance of 3.5×10−7mol m−2s−1Pa−1(ca. 1000 GPU).

Original languageEnglish (US)
Pages (from-to)7184-7187
Number of pages4
JournalAngewandte Chemie - International Edition
Volume55
Issue number25
DOIs
StatePublished - Jun 13 2016

Bibliographical note

Funding Information:
Support was provided by the ARPA-E program of the Department of Energy (DE-AR0000338 (0670-3240)) and, for certain membrane characterizations (porosimetry and SEM), by the Deanship of Scientific Research at the King Abdulaziz University (D-003/433). Q.X. and X.G. acknowledge support from the National Natural Science Foundation of China (NSFC, 21471131 and 21202116) and the China Scholarship Council. N.L. acknowledges support from the Jiangsu Overseas Research & Training Program for University Prominent Young & Middle-aged Teachers and Presidents and the NSFC (51573122). The TEM characterization (P.K.) was supported as part of the Catalysis Center for Energy Innovation, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences (DE-SC0001004). Parts of this work were carried out in the University of Minnesota Characterization Facility, which receives partial support from the NSF through the MRSEC, ERC, MRI, and NNIN programs.

Publisher Copyright:
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

  • Membranes
  • Nanosheets
  • Separation
  • Zeolites

How much support was provided by MRSEC?

  • Shared

PubMed: MeSH publication types

  • Journal Article

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