Enhanced C3H6/C3H8 separation performance on MOF membranes through blocking defects and hindering framework flexibility by silicone rubber coating

The polydimethylsiloxane (PDMS) coating penetrated into the underneath ZIF-8 polycrystalline membrane not only blocking the inter-crystalline defects but also hindering the flexibility of the ZIF-8 framework, resulting in an unusual and highly desired increase in the separation selectivity of the C3...

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Published inChemical communications (Cambridge, England) Vol. 53; no. 55; pp. 7760 - 7763
Main Authors Sheng, Luqian, Wang, Chongqing, Yang, Fan, Xiang, Long, Huang, Xiaojian, Yu, Jian, Zhang, Lixiong, Pan, Yichang, Li, Yanshuo
Format Journal Article
LanguageEnglish
Published 06.07.2017
Subjects
chemical reactions
coatings
polydimethylsiloxane
rubber
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Summary:The polydimethylsiloxane (PDMS) coating penetrated into the underneath ZIF-8 polycrystalline membrane not only blocking the inter-crystalline defects but also hindering the flexibility of the ZIF-8 framework, resulting in an unusual and highly desired increase in the separation selectivity of the C3H6/C3H8 mixture under high feeding pressures.The polydimethylsiloxane (PDMS) coating penetrated into the underneath ZIF-8 polycrystalline membrane not only blocking the inter-crystalline defects but also hindering the flexibility of the ZIF-8 framework, resulting in an unusual and highly desired increase in the separation selectivity of the C3H6/C3H8 mixture under high feeding pressures.
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ISSN:1364-548X
1364-548X
DOI:10.1039/c7cc03887a