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http://dx.doi.org/10.12925/jkocs.2018.35.3.612

The Evaluation of Electrolytic Nitrate Removal Efficiency of TiO2 Nanotube Plate  

Kim, Da Eun (Graduate School of Energy and Environment, Seoul National University of Science & Technology)
Lee, Yongho (Graduate School of Energy and Environment, Seoul National University of Science & Technology)
Han, Heeju (Graduate School of Energy and Environment, Seoul National University of Science & Technology)
Choi, Hyo yeon (Graduate School of Energy and Environment, Seoul National University of Science & Technology)
Pak, Daewon (Graduate School of Energy and Environment, Seoul National University of Science & Technology)
Publication Information
Journal of the Korean Applied Science and Technology / v.35, no.3, 2018 , pp. 612-621 More about this Journal
Abstract
In this study, $TiO_2$ nanotube plate and metal electrodes(Copper, Nickel, Stainless Steel, Aluminum, Tin, Titanium) were compared on cathodic reduction of nitrate ($NO_3{^-}-N$) during electrolysis. The electrochemical characteristics were compared based on electrochemical impedance spectroscopy (EIS). The surface morphology was obtained using scanning electron microscopy (SEM) method. Brunauer-Emmett-Teller (BET) method was implemented for the specific surface area analysis of the cathodes. To study kinetics, 90 minute batch electrolysis of nitrate solution was performed for each cathodes. In conclusion, under the condition of relatively low ($0.04 A\;cm^{-2}$) current density, $TiO_2$ nanotube plate showed no surface corrosion during the electrolysis, and the reaction rate was measured the highest in the kinetic analysis.
Keywords
Advanced oxidation process; $TiO_2$ nanotube plate; Anodization; Electrolysis; Nitrate reduction;
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Times Cited By KSCI : 1  (Citation Analysis)
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