Investigation of size distribution of silver nanoparticles

In this work, we present a physical methodology of preparing silver nanoparticles suspended in the deionized water. For this purpose, we apply the DC spark method and present the size distribution (by Zetasizer) and optical properties (by UV/VIS) of the nanoparticles in two different voltages. The obtained results using the DC spark method show that the fabrication of silver nanoparticles in deionized water without any surfactants and stabilizers is relatively cheap and pollution free. Using the method, we could prepare the silver nanoparticles smaller than 5 nm.

► We apply the DC spark method to prepare silver nanoparticles suspended in the deionized water.
► We present the size distribution and optical properties of the nanoparticles in two different voltages.
► Our method shows that the fabrication of silver nanoparticles is relatively cheap and pollution free.
► We could prepare the silver nanoparticles smaller than 5 nm.