Journal
RSC ADVANCES
Volume 5, Issue 106, Pages 87352-87363Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra10027e
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Funding
- MINECO [CTQ2012-38594-C02-01]
- DEC [2014SGR827]
- EU-ITN network Mag(net)icFun [PITN-GA-2012-290248]
- ICIQ Foundation
- MINECO through Severo Ochoa Excellence Accreditation [SEV-2013-0319]
- Agencia de Gestio d'Ajuts Universitaris i de Recerca (AGAUR)
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Crown ethers and monoazacrown ethers supported onto well defined cobalt and Fe3O4 magnetic nanoparticles have been prepared and used as magnetically recoverable extracting materials for Pb2+ from aqueous and organic solutions. The assembly of the functional nanoparticles involves the integration of the complexing units by means of a copper-pcatalysed alkyne-pazide cycloaddition reaction leading to a 1,2,3-ptriazole linker. The same binding motifs have been also used to functionalise polystyrene (PS) and polystyrene-ppolyethyleneglycol (PS-pPEG) resins, and the resulting materials were also employed in the removal of Pb2+ from solutions. The relative merits of these two approaches are compared.
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