Quasi-monodispersed SnO 2 microspheres have been successfully synthesised by a microwave solvothermal method, in which polyethylene glycol is used as template, SnCl 4 .5H 2 O and urea as raw materials. The products have been characterised by X-ray diffraction, a scanning electron microscope, and a transmission electron microscope. Besides, the thermal behaviour of the products synthesised by solvothermal process has been studied through the thermogravimetry differential scanning calorimetry. Photocatalytic activities of the samples have been evaluated by the degradation of rhodamine B (RhB) in different pH values under UV light illumination. Results showed that these microspheres with diameter about 1?0-1?5 mm were composed of numerous SnO 2 nanoparticles with a diameter of y9 nm. The SnO 2 microspheres exhibited a high effective adsorption and an excellent photocatalystic activity of RhB in a wide range of pH values.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.