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DMAc used as a reducer for preparation of spherical silver nanoparticles with high dispersion

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Abstract

A silver nanoparticle (AgNP) with good monodispersity was produced by a convenient method for reducing of AgNO3 with N, N-dimethylacetamide in the presence of polyvinyl pyrrolidone (PVP) as the surface modification agent. The shape and size of the AgNP with reaction time were taken as variables. The surface plasmon band transition was monitored with reaction mixture time at different temperatures. The AgNP crystallinity increases with the reaction time, and the reduction efficiency is very low when AgNP solution is dealt at room temperature even after two days, while it is greatly improved at 160 °C only for 25 min. AgNP modified by the as-synthesized PVP has a face-centered cubic crystalline structure, in which AgNP could develop into a spherical morphology with a very narrow size distribution of 2–11 nm. The preparation provides a new reducing agent to form AgNP with simpler operation and shorter time.

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Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China

    Guo-wen He  (贺国文) & Fen-fang Li  (李芬芳)

  2. College of Chemical and Environmental Engineering, Hunan City University, Yiyang, 413000, China

    Guo-wen He  (贺国文) & Jie-bin Wen  (文杰斌)

  3. School of Materials Science and Engineering, Central South University, Changsha, 410083, China

    Jie-bin Wen  (文杰斌)

Authors
  1. Guo-wen He  (贺国文)
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  2. Fen-fang Li  (李芬芳)
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  3. Jie-bin Wen  (文杰斌)
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Corresponding author

Correspondence to Fen-fang Li  (李芬芳).

Additional information

Foundation item: Project(126223) supported by Postdoctoral Fund of Central South University, China; Project(13JJ4102) supported by the Natural Science Foundation of Hunan Province, China; Project(14A025) supported by the Research Foundation of Education Bureau of Hunan Province, China

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He, Gw., Li, Ff. & Wen, Jb. DMAc used as a reducer for preparation of spherical silver nanoparticles with high dispersion. J. Cent. South Univ. 22, 445–449 (2015). https://doi.org/10.1007/s11771-015-2541-7

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  • DOI: https://doi.org/10.1007/s11771-015-2541-7

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