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

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 mercap...

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Bibliographic Details
Published in:RSC advances 2021-03, Vol.11 (18), p.1777-1784
Main Authors: Li, Hao, Ménard, Mathilde, Vardanyan, Ani, Charnay, Clarence, Raehm, Laurence, Oliviero, Erwan, Seisenbaeva, Gulaim A, Pleixats, Roser, Durand, Jean-Olivier
Format: Article
Language:English
Subjects:
Adsorption
Chemical Sciences
Chemical synthesis
Chemistry
Ion adsorption
Ligands
Materialkemi
Materials Chemistry
Metal ions
Nanoparticles
Nickel
NMR
Nuclear magnetic resonance
Organic chemistry
Silicon dioxide
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Summary: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. The adsorption of metal ions through ligand-functionalized magnetic mesoporous silica nanoparticles is described.
ISSN:2046-2069
2046-2069
DOI:10.1039/d1ra01581h