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Anodization of $TiO_2$ with Seawater Electrolyte; Evaluation of Hydrogen Production in PEG and Photocatalytic Cr(VI) Reduction  

Shim, Eun-Jung (Hydrogen Energy Research Center, Korea Insitute of Energy Research)
Park, Min-Sung (Dept. of Chemical and Biomolecular Engineering, Yonsei Univ.)
Her, A-Young (Dept. of Chemical and Biomolecular Engineering, Yonsei Univ.)
Joo, Hyun-Ku (Hydrogen Energy Research Center, Korea Insitute of Energy Research)
Yoon, Jae-Kyung (Hydrogen Energy Research Center, Korea Insitute of Energy Research)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.20, no.5, 2009 , pp. 404-409 More about this Journal
Abstract
The present works were performed that titanium foil was anodized in various dilution ratios of seawater and distilled water with 10V external voltage applied, then annealed at $450^{\circ}C$ to obtain $TiO_2$ on the Ti substrate. The prepared samples were characterized by instruments (XRD, SEM, and photocurrent) and used to investigate rate of hydrogen production in photoelectrochemical cell as well as Cr(VI) reduction. As the results of experiments, the anodized $TiO_2$ in seawater electrolytes, which are ranged from 15 to 50 times dilution of seawater, was showed a relatively higher hydrogen production (ca. 97~110 umol/hr-$cm^2$) and Cr(VI) reduction (ca. 95% reduction).
Keywords
Seawater electrolyte; Anodization; $TiO_2$; Hydrogen; Cr(VI); PEC;
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Times Cited By KSCI : 5  (Citation Analysis)
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