电邮这篇文章 THERMODYNAMICS OF Cu(II) SORPTION FROM AQUEOUS SOLUTIONS BY HYDROGEL SORBENTS BASED ON CROSSLINKED CHITOSAN
- 作者: Gabrin V.A1, Nikiforova T.E1
-
隶属关系:
- Ivanovo State University of Chemistry and Technology
- 期: 卷 99, 编号 11 (2025)
- 页面: 1635–1640
- 栏目: CURRENT PROBLEMS IN THE THEORY AND PRACTICE OF HETEROGENEOUS CATALYSTS AND ADSORBENTS
- ##submission.dateSubmitted##: 28.01.2026
- ##submission.datePublished##: 15.11.2025
- URL: https://bakhtiniada.ru/0044-4537/article/view/378252
- DOI: https://doi.org/10.7868/S3034553725110041
- ID: 378252
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详细
The dependence of the sorption characteristics of heavy- metal sorbents based on crosslinked chitosan hydrogels on the temperature parameters of the heterogeneous system "aqueous copper(II) sulfate solution - chitosan-based sorbent" was studied in detail. Using experimental data on the static sorption of Cu(II) ions and applying various approaches and models (Langmuir, Freundlich, and the Theory of Volume Filling of Micropores), the key sorption parameters were calculated. Based on the calculated thermodynamic potentials, it was established that the sorption of copper cations is an endothermic process characterized by a sequential, thermodynamically spontaneous filling of the sorption volume of the interfacial surface and the sorption-active sites of the investigated sorbents.
作者简介
V. Gabrin
Ivanovo State University of Chemistry and Technology
Email: gabrinvictoria@gmail.com
Ivanovo, Ivanovo Region, Russia
T. Nikiforova
Ivanovo State University of Chemistry and TechnologyIvanovo, Ivanovo Region, Russia
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