Preparation and sonophotocatalytic performance of hierarchical BiWO structures and effects of various factors on the rate of Rhodamine B degradation.

Hierarchical BiWO structures with high surface area were prepared in the presence of polyvinylpyrrolidone by using an optimized hydrothermal method. The samples prepared were characterized by X-ray diffraction, field-emission scanning electron microscopy and N adsorption-desorption technique. The results of these characterizations showed the formation of the hierarchical BiWO structures with high surface area (51m/g).