Investigation of lichen based green synthesis of silver nanoparticles with response surface methodology


YILDIZ N., Ates C., Yilmaz M., Demir D., YILDIZ A., ÇALIMLI A.

GREEN PROCESSING AND SYNTHESIS, vol.3, no.4, pp.259-270, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 3 Issue: 4
  • Publication Date: 2014
  • Doi Number: 10.1515/gps-2014-0024
  • Title of Journal : GREEN PROCESSING AND SYNTHESIS
  • Page Numbers: pp.259-270

Abstract

In this study, silver (Ag) nanoparticles were successfully biosynthesized from AgNO3 through a simple green route using the lichen extract [Cetraria islandica (L) Ach] as a reducing and stabilizing agent. The mean sizes of spherical Ag nanoparticles with diameters ranging from 5 nm to 29 nm were obtained at different reaction conditions. The nanoparticles were characterized using transmission electron microscopy (TEM), energy dispersive X-ray (EDX), ultraviolet-visible (UV-VIS) and Fourier transform infrared spectroscopy (FTIR) techniques. Response surface methodology (RSM) was used to investigate the effects of temperature, reaction time and AgNO3/lichen ratio on green synthesis of Ag nanoparticles. The results showed that the increase in reaction time and AgNO3/lichen ratio caused a decrease of particle size and the increase in temperature resulted in bigger particles.