Impact of Ph on the Properties of Spherical Silver Nanoparticles Capped by PVA

Abstract

Spherical shaped silver nanoparticles have been synthesized through chemical reduction method using tri sodium citrate as reductant and PVA as surfactant. We have studied the pH influence on the properties of synthesized silver nanoparticles. Broadened XRD peaks confirmed the formation of small nano-sized silver particles with face centered cubic (FCC) structure. The average particle size of the silver nanoparticles decreased from 32 nm to 20 nm when the pH is increased from 6 to 10. The particle size decreased with increasing pH value was confirmed by both XRD and FESEM studies. FTIR measurements concluded that intact of PVA with silver nanoparticles