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摘要
Using Ti(SO4)(2), SnCl4, and urea as raw materials, TiO2-SnO2 composite oxide powders with spherical morphology were synthesized by one-step low temperature hydrothermal method in aqueous solutions. The influences of reaction conditions on the structure of the products were investigated. The obtained samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis(EDAX) and UV-Vis spectrometry. The results reveal that uniformly dispersed composite oxides with rutile structure are obtained with average diameters of 2 mu m when the Ti4+/Sn4+ molar ratio is in the range of 6-8 without stirring, the UV absorption of the product is stronger than that of anatase TiO2, SnO2 and commodity P25.
