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Decolorization of a Rhodamine B Using Photoelectrocatalytic and Electrolytic/UV Process
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 Title & Authors
Decolorization of a Rhodamine B Using Photoelectrocatalytic and Electrolytic/UV Process
Kim, Dong-Seog; Park, Young-Seek;
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 Abstract
The feasibility study of the application of the photoelectrocatalytic and electrolytic/UV decolorization of Rhodamine B (RhB) was investigated in the photoelectrocatalytic and electrolytic/UV process with photoelectrode and DSA (dimensionally stable anode) electrode. Three types of photoelectrode were used. Thermal oxidation electrode (Th-) was made by oxidation of titanium metal sheet; sol-gel electrode (5G-) and powder electrode (P-) were made by coating and then heating a layer of titania sol-gel and slurry on titanium sheet. DSA electrodes were Ti and Ru/Ti electrode. The relative performance for RhB decolorization of each of the photoelecoodes and DSA electrodes is: Ru/Ti > Ti > SG- > Th-. It was observed that photoelectrocatalytic decolorization of RhB is similar to the sum of the photocatalytic and electrolytic decolorization. Therefore the synergetic effect was not showed in pthotoelectrocatalytic reaction. and NaCl showed different decolorization effect between pthotoelectrocatalytic and electrolytic/UV reaction. In the presence of the NaCl, RhB decolorization of Ru/Ti DSA electrode was higher than that of the other photoelectrode and Ti electrode. Optimum current, NaCl dosage and UV lamp power of the electrolytic/UV process (using Ru/Ti electrode) were 0.75 A, 0.5 g/L and 16 W, respectively.
 Keywords
Photoelectrocatalytic process;Photoelectrode;Electrolytic/UV process;Electric current;Electrolyte;
 Language
Korean
 Cited by
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