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Preparation of Ag–Fe-decorated single-walled carbon nanotubes by arc discharge and their antibacterial effect

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Abstract

A simple one-step approach for the preparation of Ag–Fe-decorated single-walled carbon nanotubes (Ag–Fe/SWCNTs) by DC hydrogen arc discharge is presented in this article. The growth of SWCNTs and the attachment of Ag and Fe nanoparticles to the SWCNTs occur simultaneously during the arc discharge evaporation process. It has been confirmed that the Ag and Fe nanoparticles in the diameter range of 1–10 nm are well dispersed and tightly attached to the outer surfaces of SWCNTs. The as-grown Ag–Fe/SWCNTs have been purified by high-temperature hydrogen treatment to remove amorphous carbon and carbon shells. Antibacterial tests show that the antibacterial activity of the purified Ag–Fe/SWCNT hybrid nanoparticles is excellent against Escherichia coli. The percentage of the E. coli killed by 100 μg/ml Ag–Fe/SWCNTs can reach up to 85.1 % at a short residence time of 2 h, suggesting that the purified Ag–Fe/SWCNTs may have potential antibacterial applications.

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Acknowledgements

Financial support from the National Natural Science Foundation of China (Grant No. 10974131) and Shanghai University-Solar Enertech Research&Development Joint Laboratory is gratefully acknowledged.

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Authors and Affiliations

  1. Department of Physics, and Institute of Low-dimensional Carbons and Device Physics, Shanghai University, Shanghai, 200444, China

    Xing Liu, Liming Yu, Leimei Sheng, Kang An & Xinluo Zhao

  2. School of Life Sciences, Shanghai University, Shanghai, 200444, China

    Feng Liu & Hongxia Chen

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  1. Xing Liu
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  2. Liming Yu
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  3. Feng Liu
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  4. Leimei Sheng
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  5. Kang An
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  7. Xinluo Zhao
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Corresponding authors

Correspondence to Liming Yu or Xinluo Zhao.

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Liu, X., Yu, L., Liu, F. et al. Preparation of Ag–Fe-decorated single-walled carbon nanotubes by arc discharge and their antibacterial effect. J Mater Sci 47, 6086–6094 (2012). https://doi.org/10.1007/s10853-012-6523-y

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  • DOI: https://doi.org/10.1007/s10853-012-6523-y

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