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. 2021 Aug 20;14(16):4702. doi: 10.3390/ma14164702

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Adsorption isotherm for metal ions adsorption by cyshtcc-Fe₃O₄, (a): Langmuir fit; (b): Freundlich fit; (c): Sips fit. Reused with permission from [155].