Laser induced photocatalytic activity enhancement of TiO_2 thin films
In this paper, the photocatalytic activity enhancement of TiO2 thin films was realized by laser irradiation. The H2 yield of the as-irradiated film is 79 μmol/(h*m2), which is 33% more than that of the as-deposited TiO2 film. Spectrophotometer, X-ray diffraction and Raman system were employed to cha...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2018
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/89829 http://hdl.handle.net/10220/46375 |
| _version_ | 1811685305746456576 |
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| author | Jing, Ming Hong, Ruijin Shao, Wen Lin, Hui Zhang, Dawei Zhuang, Songlin Zhang, Daohua |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Jing, Ming Hong, Ruijin Shao, Wen Lin, Hui Zhang, Dawei Zhuang, Songlin Zhang, Daohua |
| author_sort | Jing, Ming |
| collection | NTU |
| description | In this paper, the photocatalytic activity enhancement of TiO2 thin films was realized by laser irradiation. The H2 yield of the as-irradiated film is 79 μmol/(h*m2), which is 33% more than that of the as-deposited TiO2 film. Spectrophotometer, X-ray diffraction and Raman system were employed to characterize the samples. The results showed that both the scanning rate and line spacing of the laser modification have effects on photocatalytic activity. It suggests that a phase junction is formed between the amorphous and rutile phases. The increment of H2 generation could be attributed to the alignment of Fermi levels in the phase junction. |
| first_indexed | 2024-10-01T04:42:25Z |
| format | Journal Article |
| id | ntu-10356/89829 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:42:25Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/898292020-03-07T14:02:35Z Laser induced photocatalytic activity enhancement of TiO_2 thin films Jing, Ming Hong, Ruijin Shao, Wen Lin, Hui Zhang, Dawei Zhuang, Songlin Zhang, Daohua School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering Thin Films Surface Photochemistry In this paper, the photocatalytic activity enhancement of TiO2 thin films was realized by laser irradiation. The H2 yield of the as-irradiated film is 79 μmol/(h*m2), which is 33% more than that of the as-deposited TiO2 film. Spectrophotometer, X-ray diffraction and Raman system were employed to characterize the samples. The results showed that both the scanning rate and line spacing of the laser modification have effects on photocatalytic activity. It suggests that a phase junction is formed between the amorphous and rutile phases. The increment of H2 generation could be attributed to the alignment of Fermi levels in the phase junction. Published version 2018-10-19T04:30:01Z 2019-12-06T17:34:25Z 2018-10-19T04:30:01Z 2019-12-06T17:34:25Z 2017 Journal Article Jing, M., Hong, R., Shao, W., Lin, H., Zhang, D., Zhuang, S., & Zhang, D. (2017). Laser induced photocatalytic activity enhancement of TiO_2 thin films. Optics Express, 25(24), A1132-A1138. doi:10.1364/OE.25.0A1132 1094-4087 https://hdl.handle.net/10356/89829 http://hdl.handle.net/10220/46375 10.1364/OE.25.0A1132 en Optics Express © 2017 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. 7 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering Thin Films Surface Photochemistry Jing, Ming Hong, Ruijin Shao, Wen Lin, Hui Zhang, Dawei Zhuang, Songlin Zhang, Daohua Laser induced photocatalytic activity enhancement of TiO_2 thin films |
| title | Laser induced photocatalytic activity enhancement of TiO_2 thin films |
| title_full | Laser induced photocatalytic activity enhancement of TiO_2 thin films |
| title_fullStr | Laser induced photocatalytic activity enhancement of TiO_2 thin films |
| title_full_unstemmed | Laser induced photocatalytic activity enhancement of TiO_2 thin films |
| title_short | Laser induced photocatalytic activity enhancement of TiO_2 thin films |
| title_sort | laser induced photocatalytic activity enhancement of tio 2 thin films |
| topic | DRNTU::Engineering::Electrical and electronic engineering Thin Films Surface Photochemistry |
| url | https://hdl.handle.net/10356/89829 http://hdl.handle.net/10220/46375 |
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