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Abstract
In this study, novel Ag₂Se sensitized TiO₂ nanocomposites were prepared by facile sonochemical assisted synthesis method. The as-prepared products were characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM) with energy dispersive X-ray (EDX) analysis, transmission electron microscopy (TEM), and N₂ adsorption BET analysis. The as-prepared Ag₂Se/TiO₂ nanocomposites simultaneously possessed great adsorptivity for organic dyes and efficient charge separation properties. In the decolorization of rhodamine B, a significant enhancement in the reaction rate was observed for the Ag2Se/TiO₂ nanocomposite compared to the cases of using pure P25 or TiO₂. The sonocatalysis activity was higher due to the greater formation of reactive radicals, as well as to the increase of the active surface area of the Ag₂Se/TiO₂ nanocomposite.
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