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Synthesis of triethoxysilylated cyclen derivatives, grafting on magnetic mesoporous silica nanoparticles and application to metal ion adsorption

Hao Li, Mathilde Ménard, Ani Vardanyan, Clarence Charnay, Laurence Raehm, Erwan Oliviero, Gulaim A. Seisenbaeva*, Roser Pleixats, Jean Olivier Durand

*Autor correspondiente de este trabajo

Producción científica: Contribución a una revistaArtículoInvestigaciónrevisión exhaustiva

Resumen

The synthesis through click chemistry of triethoxysilylated cyclen derivative-based ligands is described. Different methods were used such as the copper catalyzed Huisgen's reaction, or thiol-ene reaction for the functionalization of the cyclen scaffold with azidopropyltriethoxysilane or mercaptopropyltriethoxysilane, respectively. These ligands were then grafted on magnetic mesoporous silica nanoparticles (MMSN) for extraction and separation of Ni(ii) and Co(ii) metal ions from model solutions. The bare and ligand-modified MMSN materials revealed high adsorption capacity (1.0-2.13 mmol g−1) and quick adsorption kinetics, achieving over 80% of the total capacity in 1-2 hours.

Idioma originalInglés
Páginas (desde-hasta)10777-10784
Número de páginas8
PublicaciónRSC ADVANCES
Volumen11
N.º18
DOI
EstadoPublicada - 12 mar 2021

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