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Open AccessArticle

“High-Throughput” Evaluation of Polymer-Supported Triazolic Appendages for Metallic Cations Extraction

Unité de Technologies Chimique et Biologiques pour la Santé (UTCBS), UMR 8258 CNRS, U 1022 Inserm, Ecole Nationale Supérieure de Chimie de Paris (Chimie ParisTech)/PSL Research University, 11 rue Pierre et Marie Curie, 75005 Paris, France
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Academic Editor: Hugo F. Lopez
Metals 2015, 5(1), 418-427; https://doi.org/10.3390/met5010418
Received: 25 February 2015 / Revised: 5 March 2015 / Accepted: 7 March 2015 / Published: 12 March 2015
(This article belongs to the Special Issue Hydrometallurgy)
The aim of this work was to find and use a low-cost high-throughput method for a quick primary evaluation of several metal extraction by substituted piperazines appendages as chelatants grafted onto Merrifield polymer using click-chemistry by the copper (I)-catalyzed Huisgen’s reaction (CuAAC) The polymers were tested for their efficiency to remove various metal ions from neutral aqueous solutions (13 cations studied: Li+, Na+, K+, Mn2+, Fe3+, Co2+, Ni2+, Cu2+, Cd2+, Ba2+, Ce3+, Hg+ and Pb2+) using the simple conductimetric measurement method. The polymers were found to extract all metals with low efficiencies ≤40%), except for Fe3+ and Hg+, and sometimes Pb2+. Some polymers exhibited a selectively for K+, Cd2+ and Ba2+, with good efficiencies. The values obtained here using less polymer, and a faster method, are in fair correspondence (average difference ±16%) with another published evaluation by atomic absorption spectroscopy (AAS). View Full-Text
Keywords: polymer functionalization; click chemistry; CuAAC; complexants; metallic cations; complexation; depollution; catalysis polymer functionalization; click chemistry; CuAAC; complexants; metallic cations; complexation; depollution; catalysis
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Slimi, R.; Girard, C. “High-Throughput” Evaluation of Polymer-Supported Triazolic Appendages for Metallic Cations Extraction. Metals 2015, 5, 418-427.

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