Photodegradation of Veratryl Alcohol on a Titanium Dioxide Photoelectrode in Aqueous Solution Containing Chloride Ions
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- KODAMA Daiyu
- Department of Applied Chemistry, Graduate School of Integrated Science and Technology, Shizuoka University
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- UCHIYAMA Eriko
- Department of Applied Chemistry, Graduate School of Integrated Science and Technology, Shizuoka University
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- KOHNO Yoshiumi
- Department of Applied Chemistry, Graduate School of Integrated Science and Technology, Shizuoka University
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- TOMITA Yasumasa
- Department of Applied Chemistry, Graduate School of Integrated Science and Technology, Shizuoka University
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- KOBAYASHI Kenkichiro
- Department of Applied Chemistry, Graduate School of Integrated Science and Technology, Shizuoka University
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- MAEDA Yasuhisa
- Department of Applied Chemistry, Graduate School of Integrated Science and Technology, Shizuoka University
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Abstract
A titanium dioxide film with nanopores was prepared by the anodic oxidation of titanium in nitric acid solution. The photoactivity of the titanium dioxide film depended on the heat treatment temperature under air. The titanium dioxide electrode treated at 500 ℃ showed a high photoanodic response to veratryl alcohol (VA) in aqueous solution. The photodegradation of VA was rapid in aqueous NaCl solution compared with NaClO4, Na2SO4, and NaNO3 solutions. The oxidants Cl2 or HClO were photogenerated on the titanium dioxide photoanode in NaCl solution. The photoanodic oxidation of VA on the titanium dioxide in NaCl solution was caused by the attack of photogenerated holes and oxidants. High-performance liquid chromatography revealed the formation of vanillyl alcohol, veratraldehyde, vanillin, and benzenetriol as the main intermediates, and the formation of ketomalonic acid, suggesting aromatic ring cleavage on the titanium dioxide electrode during the photoanodic oxidation of VA in aqueous NaCl solution.
Journal
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- Journal of The Surface Finishing Society of Japan
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Journal of The Surface Finishing Society of Japan 66 (9), 420-424, 2015
The Surface Finishing Society of Japan
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Details
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- CRID
- 1390282679093692032
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- NII Article ID
- 130005261641
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- NII Book ID
- AN1005202X
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- ISSN
- 18843409
- 09151869
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- NDL BIB ID
- 026739115
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed