Green synthesis of silver nanoparticles using 4-acetamido-TEMPO-oxidized curdlan

Carbohydr Polym. 2013 Sep 12;97(2):391-7. doi: 10.1016/j.carbpol.2013.05.049. Epub 2013 May 27.

Abstract

A facile, simple, and eco-friendly method using 4-acetamido-2,2,6,6-tetramethypiperidine-1-oxyl radical-oxidized curdlan (Oc) as both reducing and stabilizing agents was developed for the fabrication of silver nanoparticles (AgNPs) from silver nitrate (AgNO₃). The structure, morphology, and particle size of the as-prepared AgNPs were investigated by ultraviolet-visible spectroscopy, transmission electron microscopy, energy dispersive X-ray spectrometry, X-ray diffraction, and dynamic laser light scattering. The well-dispersed AgNPs were sphere like with a mean diameter of 15 nm. Their formation was dependent on reaction duration, reaction temperature, Oc concentration, and AgNO₃ concentration. Fourier transform-infrared and Raman spectra demonstrated that the as-prepared AgNPs can readily bind covalently with the carboxylate groups of Oc through the strong monodentate interaction in the reaction medium.

Keywords: 4-Acetamido-TEMPO; Curdlan; Green synthesis; Silver nanoparticles.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetamides / chemistry*
  • Chromatography, Gel
  • Cyclic N-Oxides / chemistry*
  • Green Chemistry Technology / methods*
  • Light
  • Metal Nanoparticles / chemistry*
  • Metal Nanoparticles / ultrastructure
  • Molecular Conformation
  • Particle Size
  • Scattering, Radiation
  • Silver / chemistry*
  • Silver Nitrate / chemistry
  • Spectrometry, X-Ray Emission
  • Spectrophotometry, Ultraviolet
  • Spectroscopy, Fourier Transform Infrared
  • Spectrum Analysis, Raman
  • Temperature
  • X-Ray Diffraction
  • beta-Glucans / chemical synthesis*
  • beta-Glucans / chemistry

Substances

  • Acetamides
  • Cyclic N-Oxides
  • beta-Glucans
  • Silver
  • curdlan
  • Silver Nitrate
  • TEMPO