Synthesis of Silver Nanoparticles by Pulsed Laser Ablation in Liquid (PLAL) with variation of time, laser wavelengths, energy, concentration, and variation of dispersants has been investigated. Colloidal nanoparticles with optimum absorbance were obtained by pulsed laser Nd: YAG with 532 nm wavelength, the laser pulse energy of 30 mJ, at a repetition rate 10 Hz, 0.01 wt% PVP as 10 mL with irradiation for 40 min respectively. UV???visible absorption, Particle Size Analyzer and Transmission Electron Microscope were justed for the characterization of Silver Nanopartical (NPs). The absorption spectra of the colloids showed that a plasmon absorption peak was around 400 nm. Transmission Electron Microscopy demonstrated that the obtained nanoparticles were spherical with average size varying from 6.4 nm to 19.2 nm. The average of diameter and distribution of Ag-NPs particles significantly depends on parameters.
展开▼
