Diels-Alder clickable furan-thiosemicarbazide cellulose for selective ruthenium (III) imprinting.

Autor: Aljohani MS; Chemistry Department, Faculty of Science, Taibah University, Yanbu, Saudi Arabia. Electronic address: mssjohani@taibahu.edu.sa., Alnoman RB; Chemistry Department, Faculty of Science, Taibah University, Yanbu, Saudi Arabia., Alharbi HY; Chemistry Department, Faculty of Science, Taibah University, Yanbu, Saudi Arabia., Alnawmasi JS; Department of Chemistry, College of Science, Qassim University, Buraydah, 51452, Qassim, Saudi Arabia., Monier M; Chemistry Department, Faculty of Science, Taibah University, Yanbu, Saudi Arabia; Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt. Electronic address: monierchem@yahoo.com.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2024 Apr; Vol. 263 (Pt 1), pp. 130255. Date of Electronic Publication: 2024 Feb 16.
DOI: 10.1016/j.ijbiomac.2024.130255
Abstrakt: Developing an efficient adsorbent for Ru 3+ ions in wastewater is crucial for both environmental protection and resource recovery. This study introduces a novel approach using cellulose-based adsorbents, specifically modified with furan-thiosemicarbazide (FTC), to enhance their selectivity for Ru 3+ ions. By cross-linking the Ru 3+ /FTC-modified cellulose (FTC-CE) complex with a bis(maleimido)ethane (BME) cross-linker, we created a Ru 3+ ion-imprinted sorbent (Ru-II-CE) that exhibits a strong affinity and selectivity for Ru 3+ ions. The synthesis process was thoroughly characterized using NMR and FTIR spectroscopy, while the surface morphology of the sorbent particles was examined with scanning electron microscopy. The Ru-II-CE sorbent demonstrated exceptional selectivity for Ru 3+ among competing metal cations, achieving optimal adsorption at a pH of 5. Its adsorption capacity was notably high at 215 mg/g, fitting well with the Langmuir isotherm model, and it followed pseudo-second-order kinetics. This study highlights the potential of FTC-CE for targeted Ru 3+ removal from wastewater, offering a promising solution for heavy metal decontamination.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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