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. 2023 Mar 20;28(6):2798. doi: 10.3390/molecules28062798

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© 2023 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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(A) Preparation of P(MAA-EGDMA)-g-CS IPN hydrogels in presence of Pb(II) ions as template. (B) SEM micrograph of the Pb(II)-imprinted P(MAA-EGDMA)-g-CS IPN hydrogels. Sorption of Pb(II) ions in presence of competitive HMIs from printed circuit board recycling unit wastewaters (C) and sorption of Pb(II) and W(VI) in five consecutive cycles (D) in column setup (pH 6, flow rate 2 mL/min, column: height 7 cm, diameter 8 mm). (Adapted with permission from Ref. [207]. Copyright 2016 American Chemical Society).