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Issue 11, 2019
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A polyoxometalate-modified magnetic nanocomposite: a promising antibacterial material for water treatment

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Abstract

In this work, polyoxometalate-modified magnetic nanocomposite Fe3O4@PDA@POM was prepared by coating [Cu(HL)4]2[P2Mo5O23]2·8H2O (POM, L = 2-aminopyridine) on the surface of a preassembled polydopamine (PDA)-capped carboxyl-functionalized Fe3O4 magnetic microspheres. Our studies on Gram negative bacterium Escherichia coli (E. coli) indicated that owing to the collective effect between preassembled Fe3O4 and POM, the Fe3O4@PDA@POM nanocomposite loaded on nickel foam exhibited outstanding antibacterial activity and reusability, and even after 6 cycles it has a high antibacterial capability of ca. 90%. Further extension of this investigation towards Gram positive bacterium Staphylococcus albus (S. aureus) demonstrated a similar toxicity pattern, confirming the potential applications of this material for water treatment in biochemical processes. The antibacterial mechanism of the Fe3O4@PDA@POM nanocomposite was further investigated by taking E. coli as a model microorganism.

Graphical abstract: A polyoxometalate-modified magnetic nanocomposite: a promising antibacterial material for water treatment

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Publication details

The article was received on 22 Dec 2018, accepted on 31 Jan 2019 and first published on 04 Feb 2019


Article type: Paper
DOI: 10.1039/C8TB03331E
Citation: J. Mater. Chem. B, 2019,7, 1933-1944

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    A polyoxometalate-modified magnetic nanocomposite: a promising antibacterial material for water treatment

    Y. Fang, C. Xing, S. Zhan, M. Zhao, M. Li and H. Liu, J. Mater. Chem. B, 2019, 7, 1933
    DOI: 10.1039/C8TB03331E

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