Origin of Difference in Photocatalytic Activity of ZnO (002) Grown on a- and c-Face Sapphire
The oriented (002) ZnO films were grown on a- and c-face sapphire by pulsed laser deposition. The X-ray diffraction analysis revealed that the oriented (002) ZnO films were epitaxially grown on the substrate successfully. The sample on a-face sapphire had higher crystal quality. However, the photoca...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2014/135725 |
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| author | Guoqiang Li Bingyang Sun Yali Wang Zhou Wu Weifeng Zhang |
| author_facet | Guoqiang Li Bingyang Sun Yali Wang Zhou Wu Weifeng Zhang |
| author_sort | Guoqiang Li |
| collection | DOAJ |
| description | The oriented (002) ZnO films were grown on a- and c-face sapphire by pulsed laser deposition. The X-ray diffraction analysis revealed that the oriented (002) ZnO films were epitaxially grown on the substrate successfully. The sample on a-face sapphire had higher crystal quality. However, the photocatalytic activity for Rhodamine B degradation of ZnO film on c-face sapphire was higher than that on a-face sapphire. The Raman spectrum and XPS analysis suggested that the sample on a-face sapphire had higher concentration of defects. The result of the contact angle measurement revealed that the sample on c-face sapphire had higher surface energy. And the investigation of the surface conductance implied that the higher light conductance was helpful for the photocatalytic activity. |
| format | Article |
| id | doaj-art-b260d4d056e54ce49dcd236bfb15409b |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-b260d4d056e54ce49dcd236bfb15409b2025-02-03T07:25:24ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2014-01-01201410.1155/2014/135725135725Origin of Difference in Photocatalytic Activity of ZnO (002) Grown on a- and c-Face SapphireGuoqiang Li0Bingyang Sun1Yali Wang2Zhou Wu3Weifeng Zhang4Key Laboratory of Photovoltaic Materials of Henan Province and School of Physics & Electronics, Henan University, Kaifeng 475004, ChinaKey Laboratory of Photovoltaic Materials of Henan Province and School of Physics & Electronics, Henan University, Kaifeng 475004, ChinaKey Laboratory of Photovoltaic Materials of Henan Province and School of Physics & Electronics, Henan University, Kaifeng 475004, ChinaKey Laboratory of Photovoltaic Materials of Henan Province and School of Physics & Electronics, Henan University, Kaifeng 475004, ChinaKey Laboratory of Photovoltaic Materials of Henan Province and School of Physics & Electronics, Henan University, Kaifeng 475004, ChinaThe oriented (002) ZnO films were grown on a- and c-face sapphire by pulsed laser deposition. The X-ray diffraction analysis revealed that the oriented (002) ZnO films were epitaxially grown on the substrate successfully. The sample on a-face sapphire had higher crystal quality. However, the photocatalytic activity for Rhodamine B degradation of ZnO film on c-face sapphire was higher than that on a-face sapphire. The Raman spectrum and XPS analysis suggested that the sample on a-face sapphire had higher concentration of defects. The result of the contact angle measurement revealed that the sample on c-face sapphire had higher surface energy. And the investigation of the surface conductance implied that the higher light conductance was helpful for the photocatalytic activity.http://dx.doi.org/10.1155/2014/135725 |
| spellingShingle | Guoqiang Li Bingyang Sun Yali Wang Zhou Wu Weifeng Zhang Origin of Difference in Photocatalytic Activity of ZnO (002) Grown on a- and c-Face Sapphire International Journal of Photoenergy |
| title | Origin of Difference in Photocatalytic Activity of ZnO (002) Grown on a- and c-Face Sapphire |
| title_full | Origin of Difference in Photocatalytic Activity of ZnO (002) Grown on a- and c-Face Sapphire |
| title_fullStr | Origin of Difference in Photocatalytic Activity of ZnO (002) Grown on a- and c-Face Sapphire |
| title_full_unstemmed | Origin of Difference in Photocatalytic Activity of ZnO (002) Grown on a- and c-Face Sapphire |
| title_short | Origin of Difference in Photocatalytic Activity of ZnO (002) Grown on a- and c-Face Sapphire |
| title_sort | origin of difference in photocatalytic activity of zno 002 grown on a and c face sapphire |
| url | http://dx.doi.org/10.1155/2014/135725 |
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