Controlled synthesis of CaMoO₄ and SrMoO₄ rods by a simple sonochemical method

Abstract

CaMoO₄ and SrMoO₄ rods have been controllably synthesized by a simple sonochemical method without any surfactants at room temperature. The as-prepared powders were characterized by X-ray powder diffraction (XRD) and transmission electron microscopy (TEM). It was found that the ultrasonic time and Na₂MoO₄ and M(NO₃)₂ (M=Ca and Sr) molar ratio played a crucial role on the controllable synthesis of CaMoO₄ and SrMoO₄ rods. This route is proved to be convenient, mild and energy-efficient, and can be extended to the controllable synthesis of tungstates.