Synthesis of silver nanoparticles using reducing agents obtained from natural sources (Rumex hymenosepalus extracts)

  • Rodríguez-León E
  • Iñiguez-Palomares R
  • Navarro R
 et al. 
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Abstract

We have synthesized silver nanoparticles from silver nitrate solutions using extracts of Rumex hymenosepalus, a plant widely found in a large region in North America, as reducing agent. This plant is known to be rich in antioxidant molecules which we use as reducing agents. Silver nanoparticles grow in a single-step method, at room temperature, and with no addition of external energy. The nanoparticles have been characterized by ultraviolet-visible spectroscopy and transmission electron microscopy, as a function of the ratio of silver ions to reducing agent molecules. The nanoparticle diameters are in the range of 2 to 40 nm. High-resolution transmission electron microscopy and fast Fourier transform analysis show that two kinds of crystal structures are obtained: face-centered cubic and hexagonal.

Author-supplied keywords

  • Antioxidants
  • Electron microscopy
  • Green synthesis
  • Rumex hymenosepalus
  • Silver nanoparticles

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Authors

  • Ericka Rodríguez-León

  • Ramón Iñiguez-Palomares

  • Rosa Elena Navarro

  • Ronaldo Herrera-Urbina

  • Claudia Iñiguez-Palomares

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