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Tunable molecular separation by nanoporous membranes
Open accessAbstract
Metal-organic frameworks offer tremendous potential for efficient separation of molecular mixtures. Different pore sizes and suitable functionalizations of the framework allow for an adjustment of the static selectivity. Here we report membranes which offer dynamic control of the selectivity by remote signals, thus enabling a continuous adjustment of the permeate flux. This is realized by assembling linkers containing photoresponsive azobenzene-side-groups into monolithic, crystalline membranes of metal-organic frameworks. The azobenzene moieties can be switched from the trans to the cis configuration and vice versa by irradiation with ultraviolet or visible light, resulting in a substantial modification of the membrane permeability and separation factor. The precise control of the cis:trans azobenzene ratio, for example, by controlled irradiation times or by simultaneous irradiation with ultraviolet and visible light, enables the continuous tuning of the separation. For hydrogen:carbon-dioxide, the separation factor of this smart membrane can be steplessly adjusted between 3 and 8.
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Citations
Cites
Seven chemical separations to change the world
Sholl, D. S., & Lively, R. P. (2016) · Nature · doi:10.1038/532435a · Cited by 4,769
Cited by
Proton Transport in Metal–Organic Frameworks
Lim, D.-W., & Kitagawa, H. (2020) · Chemical Reviews · doi:10.1021/acs.chemrev.9b00842 · Cited by 689
Advanced Porous Materials in Mixed Matrix Membranes
Cheng, Y., Ying, Y., Japip, S., Jiang, S., Chung, T., Zhang, S., & Zhao, D. (2018) · Advanced Materials · doi:10.1002/adma.201802401 · Cited by 448
Photophysics Modulation in Photoswitchable Metal–Organic Frameworks
Rice, A. M., Martin, C. R., Galitskiy, V. A., Berseneva, A. A., Leith, G. A., & Shustova, N. B. (2020) · Chemical Reviews · doi:10.1021/acs.chemrev.9b00350 · Cited by 432
Advances in metal–organic framework-based membranes
Cheng, Y., Datta, S. J., Zhou, S., Jia, J., Shekhah, O., & Eddaoudi, M. (2022) · Chemical Society Reviews · doi:10.1039/d2cs00031h · Cited by 423
Linker functionalized metal-organic frameworks
Ali Akbar Razavi, S., & Morsali, A. (2019) · Coordination Chemistry Reviews · doi:10.1016/j.ccr.2019.213023 · Cited by 341
Metadata
- Authors
- Wang, Z., Knebel, A., Grosjean, S., Wagner, D., Bräse, S., Wöll, C., Caro, J., & Heinke, L.
- Venue
- Nature Communications
- Published
- 2016-12-20
- Volume
- 7
- Issue
- 1
- Pages
- 13872-13872
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2566685601
- Cited by
- 257
- References
- 1
- FWCI
- 26.26
- Type
- journal article
- Language
- en
- Open access
- gold
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- Wang, Z., Knebel, A., Grosjean, S., Wagner, D., Bräse, S., Wöll, C., Caro, J., & Heinke, L. (2016). Tunable molecular separation by nanoporous membranes. Nature Communications. https://doi.org/10.1038/ncomms13872
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
