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Preparation and Characterization of the Photocatalysts Transition Metal-Doped Ti-SCM  

Jung, Won-Chae (Environment & Resource Center, Korea Research Institute of Chemical Technology)
Hong, Ji-Sook (Environment & Resource Center, Korea Research Institute of Chemical Technology)
Suh, Jeong-Kwon (Environment & Resource Center, Korea Research Institute of Chemical Technology)
Suh, Dong-Hack (Department of Chemical Engineering, Hanyang University)
Publication Information
Applied Chemistry for Engineering / v.21, no.4, 2010 , pp. 445-451 More about this Journal
Abstract
$TiO_2$ shows considerably efficient photoreaction activity under the ultraviolet range but it has disadvantage that there is no activity in the visible light range. In this study, it was tried to find a solution for the problem of this kind of photocatalyst by utilizing transition metal, which can show electronic transition with $TiO_2$ in the visible light area. Photocatalyst was prepared, which can have photocatalytic activity in the wide wavelength range, not only ultraviolet region but also visible light area and prevent the combination of electron and hole hindering the photoreaction. For this purpose, by using the ion exchange method, $TiO_2$ precursor and transition metal precursor were dipped into H typed strong acid ion-exchange resin. And two kind photocatalysts (Ti-M-SCM) in which transition metal and titanium dioxide coexist through the carbonization/activation process was prepared. Moreover, photolytic reaction under the wavelength 254 nm and 365 nm was performed for humic acid (HA) in the continuous reactor in order to estimate the efficiency of produced Ti-M-SCM.
Keywords
$TiO_2$; transition metal; photocatalytic; ion-exchange; humic acid;
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Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 1
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