Synthesis and Characterization of Silver Nanorods in Aqueous Sodium Dodecylsulfate Solutions

Abstract

The synthesis and characterization of silver (Ag) nanorods through the Turkevich method in aqueous sodium dodecylsulfate (SDS) solutions have been studied in this work. The results have shown that the shape of Ag nanoparticles closely correlated with SDS concentration in the synthesis process. With high SDS concentrations, the majority of the synthesized Ag nanoparticles appeared in the form of nanorods; with low SDS concentrations, the Ag nanoparticles were spherical. This observation might be attributed to that the Ag nanoparticles grew up in SDS micelles and precipitated in the same shape of the micelles, because surfactant micelles were of cylinders in high concentrations and of spheres in low concentrations. © 2012 Copyright Taylor and Francis Group, LLC.