Novel Technique for Preparing a Nano-Silver Water Suspension by the Arc-Discharge Method

摘要

Studies on nanoparticles have become the target of major interest in modern science. Fabrication and characterization of silver nanoparticles has attracted considerable attention as a result of their significant applications in nano-technology and nano-biotechnology. The unique physical, chemical and mechanical properties of nanoparticles are the effect, among other things, of the high ratio of total surface area to their volume. Here we propose a means of preparing silver nanoparticles, suspended in pure water, using the arc-discharge method. The SEM image, size distribution, and UV-VIS spectrum are shown. The experimental results suggest that fabrication of silver nanoparticles in pure water without any surfactants and stabilizers by the arc-discharge method is relatively cheap and pollution free, and is a good alternative to other chemical methods. Our innovative studies demonstrate the safe and effective fabrication of silver nanoparticles free from any anions or cations in pure water.