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09 January 2021
An ultra-stable microporous supramolecular framework with highly selective adsorption and separation of water over ethanol
Falu Hu1(
),
Mingyan Wu1(
),
),
Mingyan Wu1(
),
Keywords:
supramolecular frameworks, π···π stacking interactions, microporosity, ethanol/water separation, single-crystal-to-single-crystal (SCSC) transformations
Cite this article:
Di Z, Pang J, Hu F, et al.
An ultra-stable microporous supramolecular framework with highly selective adsorption and separation of water over ethanol.
Nano Research,
2021, 14(8): 2584-2588.
https://doi.org/10.1007/s12274-020-3258-y
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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
Falu Hu1(
), Mingyan Wu1(
),
), Mingyan Wu1(
),
Abstract
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.
Keywords:
supramolecular frameworks, π···π stacking interactions, microporosity, ethanol/water separation, single-crystal-to-single-crystal (SCSC) transformations
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Publication history
Copyright
Acknowledgements
Publication history
Received: 08 September 2020
Revised: 19 November 2020
Accepted: 22 November 2020
Published:
09 January 2021
Issue date: August 2021
Copyright
© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020
Acknowledgements
We acknowledged the financial support from the National Key Research and Development Program of China (No. 2017YFA0700102), the National Natural Science Foundation of China (Nos. 21871266 and 21731006), the Key Research Program of Frontier Science CAS (No. QYZDY-SSW-SLH025), and Youth Innovation Promotion Association CAS.
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