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

Metals

Riadh Slimi²  Christian Girard¹ 

[1] 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; E-Mail

关键词: polymer functionalization;    click chemistry;    CuAAC;    complexants;    metallic cations;    complexation;    depollution;    catalysis;   

DOI  :  10.3390/met5010418

来源: mdpi

【 摘 要 】

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).

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.