| Sonochemical Synthesis and Sonocatalysis Performance Behavior of Ag2Se and Ag2Se/TiO2 Nanocomposites |
| Lei Zhu, Won-Chun Oh |
| Department of Advanced Materials Science & Engineering, Hanseo University |
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| ABSTRACT |
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In this study, novel $Ag_2Se$ sensitized $TiO_2$ 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 $Ag_2Se/TiO_2$ 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 $Ag_2Se/TiO_2$ nanocomposite compared to the cases of using pure P25 or $TiO_2$. 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 $Ag_2Se/TiO_2$ nanocomposite. |
| Key words:
Sonochemical, Sonocatalysis, $Ag_2Se/TiO_2$ nanocomposite, Rhodamine B |
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