Hydrothermal synthesis of monodisperse ZnxCd1-xS spheres and their photocatalytic properties

Monodisperse ZnxCd1-xS spheres were successfully fabricated with a high yield by a facile hydrothermal route. The as-prepared samples were characterized by X-ray diffractometry, scanning electron microscopy and UV-vis diffusion reflectance spectroscopy. The results indicate that all the prepared samples have the same hexagonal wurtzite phase and exhibit good size uniformity and regularity. Degradation of rhodamine-B (RhB) was used to evaluate the photocatalytic activities of ZnxCd1-xS samples. Zn0.4Cd0.6S possessed the best photocatalytic activity and exhibited high stability during the reaction.