Novel N -(2-((4-vinylbenzyl)thio)ethyl)Acetamide Functionalized Magnetite Nanoparticle: Synthesis and Test Selective Sil
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Novel N-(2-((4-vinylbenzyl)thio)ethyl)Acetamide Functionalized Magnetite Nanoparticle: Synthesis and Test Selective Silver(I) Removal Study Abiodun D. Aderibigbe1,2 · Andrew J. Clark1 Received: 25 July 2020 / Accepted: 18 August 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Magnetic nanoparticles embody a valuable suite of technologies for the selective recovery of metals from the aqueous phase owing to their high surface area, the ease of recovery using an externally applied magnetic field and their ability to be custom designed. Ligands bearing sulfur (S-) and nitrogen (N-) donors are suited for such functionalization due to their proven selectivity’s for Ag(I) binding. Herein, we report the synthesis of a novel ligand—N-(2-((4-vinylbenzyl)thio)ethyl)acetamide in two steps and with a 76% yield. Also, the attachment of the ligand to the surface of magnetite nanoparticle with the aid of azobisisobutyronitrile (AIBN) was achieved under mild conditions. The ligand-magnetite nanosorbent demonstrated excellent removal efficiency (99.9%) and outstanding selectivity for Ag(I) recovery under the prevailing experimental conditions. Taking together, the results indicate that N-(2-((4-vinylbenzyl)thio)ethyl)acetamide on magnetite nanoparticles is an efficient sorbent for the selective recovery of Ag(I) from the aqueous phase. Graphical Abstract
Keywords Selective silver removal · Acetamide · AIBN · Magnetite · Soft donor
1 Introduction and Background
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10904-020-01716-1) contains supplementary material, which is available to authorized users. * Abiodun D. Aderibigbe [email protected] 1
Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK
Department of Chemistry, Federal University of Technology Akure, P.M.B. 704, Akure, Ondo State, Nigeria
2
Silver (Ag) is an important part of our everyday life being a major component of our phones [1], batteries [2], wound dressings [3], and catalysts [4]. Due to silver’s outstanding thermal, electrical and antimicrobial properties [5], the demand for Ag will only continue to increase. Currently, the supply of Ag from mining is at risk owing to depreciating ore grades, a situation which is driving the search for substitute sources of Ag like urban mining of end-of-life products [6–10]. Howbeit, Ag is often found as a component of a complex mixture containing other metals and compounds [11], which has caused substantial setbacks with the
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Fig. 1 Illustration of the step-wise synthesis of N-(2-((4-vinylbenzyl)thio)ethyl)acetamide on iron oxide@2-bromo-2-methyl-N-(3(triethoxysilyl)propyl) propenamide ( Fe3O4@BMTP@VTEA)
industrial scale urban mining. Consequently, exceptionally efficient technologies are needed for steady Ag recovery to meet growing global demands. Extensive work has been conducted on the selective removal of Ag ions from the aqueous phase by solvent extract
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