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, cilt.3, sa.4, ss.259-270, 2014 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 3 Konu: 4
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1515/gps-2014-0024
  • Dergi Adı: GREEN PROCESSING AND SYNTHESIS
  • Sayfa Sayıları: ss.259-270

Özet

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.