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J. Korean Ceram. Soc. > Volume 52(6); 2015 > Article
Journal of the Korean Ceramic Society 2015;52(6): 489.
doi: https://doi.org/10.4191/kcers.2015.52.6.489
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
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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