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. 2020 Feb 5;12(2):333. doi: 10.3390/polym12020333

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© 2020 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 (http://creativecommons.org/licenses/by/4.0/).

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Kinetic studies of Pb(II) adsorption by the CNC-g-P(AA/AM)-0.5, CNC-g-P(AA/AM)-1, CNC-g-P(AA/AM)-2, and CNC aerogels (C₀ = 200 mg L⁻¹). (a) Effect of contact time, (b) the pseudo-first-order, (c) the pseudo-second-order, and (d) intra-particle diffusion models.