Photocatalytic Hydrogen or Oxygen Evolution from Water over S- or N-Doped TiO2 under Visible Light
S- or N-doping of TiO2 powder having an anatase or rutile phase extended the photocatalytic activity for water oxidation and reduction under UV light and visible light irradiation. For the reduction of water, anatase-doped TiO2 showed higher level of activity than that of doped TiO2 having a rutile...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2008-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2008/173943 |
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| _version_ | 1832561820257222656 |
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| author | Kazumoto Nishijima Takaaki Kamai Naoya Murakami Toshiki Tsubota Teruhisa Ohno |
| author_facet | Kazumoto Nishijima Takaaki Kamai Naoya Murakami Toshiki Tsubota Teruhisa Ohno |
| author_sort | Kazumoto Nishijima |
| collection | DOAJ |
| description | S- or N-doping of TiO2 powder having an anatase or rutile phase extended the photocatalytic activity for water oxidation and reduction under UV light and visible light irradiation. For the reduction of water, anatase-doped TiO2 showed higher level of activity than that of doped TiO2 having a rutile phase using ethanol as an electron donor. Furthermore, the activity level of S-doped TiO2 for hydrogen evolution was higher than that of N-doped TiO2 photocatalysts under visible light. Photocatalytic oxidation of water on doped TiO2 having a rutile phase proceeded with fairly high efficiency when Fe3+ ions were used as electron acceptors compared to that on doped TiO2 having an anatase phase. In addition, water splitting under visible light irradiation was achieved by construction of a Z-scheme photocatalysis system employing the doped TiO2 having anatase and rutile phases for H2 and O2 evolution and the I−/IO3− redox couple as an electron relay. |
| format | Article |
| id | doaj-art-1534c3932f344667b47d2b6dc25dc01a |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2008-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-1534c3932f344667b47d2b6dc25dc01a2025-02-03T01:24:00ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2008-01-01200810.1155/2008/173943173943Photocatalytic Hydrogen or Oxygen Evolution from Water over S- or N-Doped TiO2 under Visible LightKazumoto Nishijima0Takaaki Kamai1Naoya Murakami2Toshiki Tsubota3Teruhisa Ohno4Department of Material Science, Faculty of Engineering, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata-ku, Fukuoka, Kitakyushu-shi 804-8550, JapanDepartment of Material Science, Faculty of Engineering, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata-ku, Fukuoka, Kitakyushu-shi 804-8550, JapanDepartment of Material Science, Faculty of Engineering, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata-ku, Fukuoka, Kitakyushu-shi 804-8550, JapanDepartment of Material Science, Faculty of Engineering, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata-ku, Fukuoka, Kitakyushu-shi 804-8550, JapanDepartment of Material Science, Faculty of Engineering, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata-ku, Fukuoka, Kitakyushu-shi 804-8550, JapanS- or N-doping of TiO2 powder having an anatase or rutile phase extended the photocatalytic activity for water oxidation and reduction under UV light and visible light irradiation. For the reduction of water, anatase-doped TiO2 showed higher level of activity than that of doped TiO2 having a rutile phase using ethanol as an electron donor. Furthermore, the activity level of S-doped TiO2 for hydrogen evolution was higher than that of N-doped TiO2 photocatalysts under visible light. Photocatalytic oxidation of water on doped TiO2 having a rutile phase proceeded with fairly high efficiency when Fe3+ ions were used as electron acceptors compared to that on doped TiO2 having an anatase phase. In addition, water splitting under visible light irradiation was achieved by construction of a Z-scheme photocatalysis system employing the doped TiO2 having anatase and rutile phases for H2 and O2 evolution and the I−/IO3− redox couple as an electron relay.http://dx.doi.org/10.1155/2008/173943 |
| spellingShingle | Kazumoto Nishijima Takaaki Kamai Naoya Murakami Toshiki Tsubota Teruhisa Ohno Photocatalytic Hydrogen or Oxygen Evolution from Water over S- or N-Doped TiO2 under Visible Light International Journal of Photoenergy |
| title | Photocatalytic Hydrogen or Oxygen Evolution from Water over S- or N-Doped TiO2 under Visible Light |
| title_full | Photocatalytic Hydrogen or Oxygen Evolution from Water over S- or N-Doped TiO2 under Visible Light |
| title_fullStr | Photocatalytic Hydrogen or Oxygen Evolution from Water over S- or N-Doped TiO2 under Visible Light |
| title_full_unstemmed | Photocatalytic Hydrogen or Oxygen Evolution from Water over S- or N-Doped TiO2 under Visible Light |
| title_short | Photocatalytic Hydrogen or Oxygen Evolution from Water over S- or N-Doped TiO2 under Visible Light |
| title_sort | photocatalytic hydrogen or oxygen evolution from water over s or n doped tio2 under visible light |
| url | http://dx.doi.org/10.1155/2008/173943 |
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