Wetting and Photocatalytic Properties of TiO2 Nanotube Arrays Prepared via Anodic Oxidation of E-Beam Evaporated Ti Thin Films
TiO2 nanotube arrays (TNAs) are fabricated on quartz substrate by anodizing E-beam evaporated Ti films. E-beam evaporated Ti films are directly anodized at various anodizing voltages ranging from 20 to 45 V and their morphological, wetting, and photocatalytic properties are examined. The photocataly...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2015/320625 |
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| _version_ | 1832549502931697664 |
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| author | Soon Wook Kim Hong Ki Kim Jong Won Yun Eui Jung Kim Sung Hong Hahn |
| author_facet | Soon Wook Kim Hong Ki Kim Jong Won Yun Eui Jung Kim Sung Hong Hahn |
| author_sort | Soon Wook Kim |
| collection | DOAJ |
| description | TiO2 nanotube arrays (TNAs) are fabricated on quartz substrate by anodizing E-beam evaporated Ti films. E-beam evaporated Ti films are directly anodized at various anodizing voltages ranging from 20 to 45 V and their morphological, wetting, and photocatalytic properties are examined. The photocatalytic activity of the prepared TNAs is evaluated by the photodecomposition of methylene blue under UV illumination. The TNAs prepared at an anodizing voltage of 30 V have a high roughness of 30.1 nm and a low water contact angle of 7.5°, resulting in a high photocatalytic performance. The surface roughness of the TNAs is found to correlate inversely with the water contact angle. High roughness (i.e., high surface area), which leads to high hydrophilicity, is desirable for effective photocatalytic activity. |
| format | Article |
| id | doaj-art-48940001dd754f87a943c56b405688ea |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-48940001dd754f87a943c56b405688ea2025-02-03T06:11:10ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2015-01-01201510.1155/2015/320625320625Wetting and Photocatalytic Properties of TiO2 Nanotube Arrays Prepared via Anodic Oxidation of E-Beam Evaporated Ti Thin FilmsSoon Wook Kim0Hong Ki Kim1Jong Won Yun2Eui Jung Kim3Sung Hong Hahn4Department of Physics, University of Ulsan, Ulsan 680-749, Republic of KoreaDepartment of Physics, University of Ulsan, Ulsan 680-749, Republic of KoreaDepartment of Physics, University of Ulsan, Ulsan 680-749, Republic of KoreaDepartment of Chemical Engineering, University of Ulsan, Ulsan 680-749, Republic of KoreaDepartment of Physics, University of Ulsan, Ulsan 680-749, Republic of KoreaTiO2 nanotube arrays (TNAs) are fabricated on quartz substrate by anodizing E-beam evaporated Ti films. E-beam evaporated Ti films are directly anodized at various anodizing voltages ranging from 20 to 45 V and their morphological, wetting, and photocatalytic properties are examined. The photocatalytic activity of the prepared TNAs is evaluated by the photodecomposition of methylene blue under UV illumination. The TNAs prepared at an anodizing voltage of 30 V have a high roughness of 30.1 nm and a low water contact angle of 7.5°, resulting in a high photocatalytic performance. The surface roughness of the TNAs is found to correlate inversely with the water contact angle. High roughness (i.e., high surface area), which leads to high hydrophilicity, is desirable for effective photocatalytic activity.http://dx.doi.org/10.1155/2015/320625 |
| spellingShingle | Soon Wook Kim Hong Ki Kim Jong Won Yun Eui Jung Kim Sung Hong Hahn Wetting and Photocatalytic Properties of TiO2 Nanotube Arrays Prepared via Anodic Oxidation of E-Beam Evaporated Ti Thin Films International Journal of Photoenergy |
| title | Wetting and Photocatalytic Properties of TiO2 Nanotube Arrays Prepared via Anodic Oxidation of E-Beam Evaporated Ti Thin Films |
| title_full | Wetting and Photocatalytic Properties of TiO2 Nanotube Arrays Prepared via Anodic Oxidation of E-Beam Evaporated Ti Thin Films |
| title_fullStr | Wetting and Photocatalytic Properties of TiO2 Nanotube Arrays Prepared via Anodic Oxidation of E-Beam Evaporated Ti Thin Films |
| title_full_unstemmed | Wetting and Photocatalytic Properties of TiO2 Nanotube Arrays Prepared via Anodic Oxidation of E-Beam Evaporated Ti Thin Films |
| title_short | Wetting and Photocatalytic Properties of TiO2 Nanotube Arrays Prepared via Anodic Oxidation of E-Beam Evaporated Ti Thin Films |
| title_sort | wetting and photocatalytic properties of tio2 nanotube arrays prepared via anodic oxidation of e beam evaporated ti thin films |
| url | http://dx.doi.org/10.1155/2015/320625 |
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