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. 2023 Jun 23;14:3765. doi: 10.1038/s41467-023-39402-8

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 4 — SEM and HRTEM images of the TTA-SPDFP COF before (a, b) and after (c, d) UV light irradiation for two hours. In the middle, digital photographs show the aggregated (left) and homogeneous dispersion (right) of the TTA-SPDFP/MCDFP COF samples before and after photoirradiation. e Scheme of the effect of UV light on water permeability in TTA-SPDFP COF and TTA-MCDFP COF.