فهرست نشریات علمی دسترسی آزاد ایران

This study used the pulsed laser ablation in liquids technique to prepare silver nanoparticles from silver. The initial change in the solution’s colour was an indicator of the nanoparticles’ production. Two different wavelengths of Nd: YAG laser (1064 nm and 532 nm) were used to sculpt silver nanoparticles in 30 ml of distilled water. The process was carried out using energies ranging from 100 mj to 1000 mj and with pulse counts ranging from 100 to 2000. The colour of the distilled water changed from yellow to dark yellow with an increase in the number of pulses, indicating the production of silver nanoparticles. The effect of laser parameters such as wavelength, energy, and pulses on the size and concentration of nanoparticles prepared by the pulsed laser ablation technique in distilled water was studied. The study showed that the wavelengths (532 nm and 1064 nm) at an energy of 760 mj and 2000 pulse significantly affected the size and concentration of the produced silver nanoparticles. The results indicated that the average size of the prepared silver nanoparticles increases with the increase in laser energy at a wavelength of 532 nm, while the average size decreases with the increase in laser energy at a wavelength of 1064 nm. Furthermore, zeta potential measurements showed the surface charge stability of prepared AgNPs after two months.