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Decorated Traditional Zeolites with Subunits of Metal–Organic Frameworks for CH 4 /N 2 Separation
Author(s) -
Wu Yaqi,
Yuan Danhua,
He Dawei,
Xing Jiacheng,
Zeng Shu,
Xu Shutao,
Xu Yunpeng,
Liu Zhongmin
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201905014
Subject(s) - zeolite , adsorption , selectivity , metal organic framework , chemical engineering , metal , materials science , selective adsorption , gas separation , molecular sieve , chromatographic separation , chemistry , nanotechnology , organic chemistry , catalysis , engineering , biochemistry , high performance liquid chromatography , membrane
Abstract Metal–organic frameworks (MOF) materials are promising materials for gas separation, but their application still faces various challenges. A strategy is now reported for introducing subunits of MOFs into traditional zeolite frameworks to obtain applicable adsorbents with advantages of both zeolites and MOFs. The subunits of ZIFs were introduced into zeolite Y and zeolite ZSM‐5 for CH 4 /N 2 separation. Both the molecular simulation and experimental results validated that the IAST CH 4 /N 2 selectivity of the resulting samples greatly improved (above 8, at 100 kPa and 25 °C) with the incorporation of ZIF subunits into zeolites structure, and the selectivities were obviously higher than that of zeolites and even better than that of ZIFs. This strategy not only gave rise to an efficient adsorbent for CH 4 /N 2 separation but also provided ideas for design of other adsorption and separation materials.