Research Article

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2021, 14(8): 2584–2588

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https://doi.org/10.1007/s12274-020-3258-y

An ultra-stable microporous supramolecular framework with highly selective adsorption and separation of water over ethanol

Zhengyi Di1,2, Jiandong Pang1, Falu Hu1 (✉), Mingyan Wu1 (✉), and Maochun Hong1

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1 State Key Lab of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
2 University of Chinese Academy of Sciences, Beijing 100049, China

Keywords: supramolecular frameworks, π···π stacking interactions, microporosity, ethanol/water separation, single-crystal-to-singlecrystal (SCSC) transformations
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A microporous supramolecular framework with high water and thermal stability can selectively absorb water molecules over methanol or ethanol due to the suitable channels. The model separation test on columns shows that an ultra-pure ethanol (99.9%) can be obtained from the mixture of ethanol/water (95:5). Additionally, after refluxing the desolvated sample in 95% ethanol at 60 °C for 5 h, the purity of ethanol rises up to 97.43%, which is obviously higher than 96.56% for 4 Å molecular sieves.
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An ultra-stable microporous supramolecular framework with highly selective adsorption and separation of water over ethanol. Nano Res. 2021, 14(8): 2584–2588 https://doi.org/10.1007/s12274-020-3258-y

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