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Article Dans Une Revue ChemPlusChem Année : 2023

Bis‐catecholamide‐based materials for uranium extraction

Résumé

This work reports the synthesis of formo‐phenolic resins containing four catecholamide (CAM) moieties with admixture of phenol, catechol or resorcinol. These chelating resins have been developed to selectively extract U(VI) from seawater. This media is a challenging environment due to a pH around 8.2 and a large excess of alkaline and earth‐alkaline cations. From the various sorption experiments investigated, the results indicate that the synthesized material exhibit good sorbent properties for U(VI) with uptake capacity about 50 mg/g for the more promising resins with a pronounced selectivity for uranium even under saline conditions. Thermodynamic and kinetic adsorption data were determined for the best resin (Langmuir adsorption model and pseudo‐second order model).

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Chimie
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Origine : Publication financée par une institution
Licence : CC BY NC - Paternité - Pas d'utilisation commerciale

Dates et versions

hal-04384497 , version 1 (10-01-2024)

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Guillaume Mossand, Evan Lelong, Chen Xing, Frantz Ndebulia Watchou, Antoine Leydier, et al.. Bis‐catecholamide‐based materials for uranium extraction. ChemPlusChem, 2023, 88, pp.e202200412. ⟨10.1002/cplu.202200412⟩. ⟨hal-04384497⟩
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