Facile Synthesis of BaWO4 Sub-Micron Sized Octahedron via a Microemulsion Method

摘要

Morphology-controlled synthesis is one of the important issues in the study of inorganic oxides. A variety of synthetic methods have been used for the preparation of the morphology-controlled inorganic oxides. Among these methods, the microemulsion methods have been widely used for the control of the size and morphology of inorganic oxides. The unique atomic arrangements on the surfaces can be obtained from the inorganic oxides with specific morphology. The physical properties, such as optical, cataly-tical, and antibacterial properties, are significantly affected by the surfaces of inorganic oxides. The cubic and octahedral morphologies have attracted considerable interest for their specific surfaces. In recently, the photocatalytic activity of octahedral Cu2O was investigated with comparison of the cubic Cu2O. The results demonstrate that the photocatalytic activity of octahedral Cu2O is much higher than that of cubic Cu2O. Therefore, the morphology-controlled synthesis for the cubic and octahedral inorganic oxides is important for investigating their morphology-dependent physical properties.