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Journal of Materials Science

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08-03-2018 | Chemical routes to materials

Removal and reuse of Ag nanoparticles by magnetic polyaniline/Fe₃O₄ nanofibers

Author: Qi Yang

Published in: Journal of Materials Science | Issue 12/2018

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Abstract

For the treatment of wastewater containing Ag nanoparticles (NPs), PANI/Fe₃O₄ nanofibers were firstly prepared by a novel self-assemble. And then, the efficiency for the removal of Ag NPs from wastewater was investigated. The magnetic performance of PANI/Fe₃O₄ nanofibers could be optimized by adjusting the pH of the self-assemblied system. Under pH of 3, the as-prepared nanofibers exhibited the highest magnetism and also displayed good efficiency (> 12 mg g⁻¹) for the removal of Ag NPs. Importantly, the resulted product (PANI/Fe₃O₄/Ag composite) could act as a catalysis for cleaning durable pollutant, 4-nitrophenol. After 10 cycles, only slight decrease in rate constant was found, indicating excellent reusability. Those approaches provide a new way to merge the recovery of Ag NPs as pollutants and reuse of recovered Ag NPs as recyclable material for environmental remediation.

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Title: Removal and reuse of Ag nanoparticles by magnetic polyaniline/Fe3O4 nanofibers
Author: Qi Yang
Publication date: 08-03-2018
Publisher: Springer US
Published in: Journal of Materials Science / Issue 12/2018
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-018-2181-z

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