Synthesis of silver (Ag) nanoparticles in polyvinylpyrolidone (PVP) liquid medium using pulsed laser ablation method.

This study aims to synthesize and characterize the colloidal silver nanoparticles (SNPs) in polyvinylpyrolidone (PVP) liquid with high purity by using the pulsed laser ablation (PLA) procedure. Silver plate, which was placed into PVP liquid inside a cuvette, was shot by a laser beam to produce SNPs colloid. PVP is used as a polymer medium that is expected to make SNPs smaller, stable, and not easily agglomerated. After 150 minutes of laser stroke, colloidal SNPs were successfully produced indicated by discoloration as golden yellow. To know other characterizations, we used a Transmission Electron Microscope (TEM) method and Ultraviolet-Visible (UV-Vis) spectrophotometer method. The TEM image of SNPs marked that these nanoparticles had a spherical shape. The average diameter of the SNPs was 17 nm. The UV-Vis method resulting in the peak of surface plasmon resonance at wavelength 408 nm. [ABSTRACT FROM AUTHOR]