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Color Removal of Rhodamine B by Photoelectrochemical Process using Powder TiO$_2$  

Kim, Dong-Seog (Department of Environmental Science, Catholic University of Daegu)
Park, Young-Seek (Department of Health & Environmental, Daegu University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.30, no.8, 2008 , pp. 823-830 More about this Journal
Abstract
The feasibility study for the application of the photoelectrocatalytic decolorization of Rhodamine B(RhB) was performed in the slurry photoelectrochemical reactor with powder TiO$_2$. The photoelectrocatalytic process was consisted of powder TiO$_2$, Pt electrode and three 8 W UV-C lamps. The effects of operating conditions, such as current, electrolyte, air flow rate and electrode material were evaluated. The experimental results showed that optimum TiO$_2$ dosage and current in photoelectrocatalytic process were 0.4 g/L and 0.02 A, respectively. It was found that the RhB could be degraded more efficiently by this photoelectrocatalytic process than the sum of the two individual oxidation processes(photocatalytic and electrolytic process). It demonstrated a synergetic effect between the photo- and electrochemical catalysis. Photoelectrocatalytic process was affected to air flow rate and optimum air flow rate was 2 L/min. The electrode material and NaCl effect of decolorization of RhB were not significant within the experiment conditions.
Keywords
Photoelectrocatalytic Process; Photocatalytic Process; Dye; Electrolyte Effect; Synergetic Effect;
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Times Cited By KSCI : 2  (Citation Analysis)
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