Synthesis and Characterization of Silver Choromate Nanostructures via a Simple Precipitation Method

In this work, Ag2CrO4 nanostructures have been synthesized via a precipitation method using silver salicylate, [Ag(HSal)], as a new precursor. At first, silver salicylate was prepared at room temperature through a precipitation method. So, silver nitrate and sodium salicylate were used as starting materials. Besides, the effect of silver precursor and surfactant concentration on the morphology of the products was investigated by SEM images. SEM images showed that particle-like powders with particle size of 250–300 nm and capsule-like nanostructures of Ag2CrO4 with diameters ~100 nm and lengths 130–140 nm have been produced using AgNO3 and [Ag(HSal)], respectively. In several experiments to decrease the particle size of products, sodium dodecyl sulfate (SDS) was applied as surfactant. The as-synthesized products were characterized by energy dispersive spectrometry (EDS), powder X-ray diffraction (XRD), thermogravimetric and differential thermal analyses (TGA/DTA), scanning electron microscopy (SEM), and transmission electron microscopy (TEM).