Preparation and photocatalytic properties of Bi2WO6 with different morphologies

Bismuth tungstate (Bi2WO6) microcrystalline with different surfactant were successfully prepared by a facile hydrothermal route. The samples were characterized by X-ray diffiaction(XRD), scanning electron microscopy(SEM), and Brunauer Emmett Teller surface area (BTE) in detail. The photocatalytic activity of the samples was also evaluated using the degradation of Rh B at room temperature under visible light irradiation. It was found that the surfactant played important roles in the formation process of controlling the morphology and structure of the catalyst and also had a great influence on the catalytic activity. SDS and CTAB effectively improved the catalytic activity and PVP was good at controlling morphologies.