Synthesis and characterization of rod-like CaMoO4 nanostructure via free surfactant sonochemical route and its photocatalytic application

In this research, we have successfully synthesized rod-like calcium molybdate (CaMoO4) nanostructure via free surfactant sonochemical route by utilizing calcium (II) nitrate and ammonium heptamolybdate as the starting materials in an aqueous solution without any surfactant. The formation of CaMoO4 nanostructure and their structure, shape, and elemental composition were analyzed by means of several techniques including X-ray diffraction, energy dispersive X-ray microanalysis, and scanning electron microscopy. In addition, the photocatalyst activity of as-prepared CaMoO4 nanostructures was evaluated by degradation of methyl orange under ultraviolet light irradiation. Based on the author’s knowledge, it is the first report on photocatalyst activity of CaMoO4 nanostructures. The CaMoO4 nanostructure indicated a ferromagnetic behavior, as evidenced by vibrating sample magnetometer.