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Crystal-facet-dependent hot-electron transfer in plasmonic-Au/semiconductor heterostructures for efficient solar photocatalysis
| Title: | Crystal-facet-dependent hot-electron transfer in plasmonic-Au/semiconductor heterostructures for efficient solar photocatalysis |
| Authors: | Liu, Guigao Browse this author | | Wang, Tao Browse this author | | Zhou, Wei Browse this author | | Meng, Xianguang Browse this author | | Zhang, Huabin Browse this author | | Liu, Huimin Browse this author | | Kako, Tetsuya Browse this author →KAKEN DB | | Ye, Jinhua Browse this author →KAKEN DB |
| Issue Date: | 7-Aug-2015 |
| Publisher: | Royal Society of Chemistry |
| Journal Title: | Journal of materials chemistry C |
| Volume: | 3 |
| Issue: | 29 |
| Start Page: | 7538 |
| End Page: | 7542 |
| Publisher DOI: | 10.1039/c5tc01406a |
| Abstract: | Here, using Au-BiOCl as models, we show the significant crystal facet effects of the semiconductor on hot-electron transfer within such plasmonic heterostructures under visible light. It is found that {010} facets of BiOCl are greatly advantageous over {001} facets for the hot-electron injection, as evidenced by steady-state diffuse reflectance spectroscopy and photoelectrochemical measurements. Consequently, Au-BiOCl-010 exhibits superior activity for photocatalytic aerobic oxidation of 2-propanol with a quantum efficiency of 1.3%, being 3.5 times higher than that of Au-BiOCl-001. The differences in band structure between the {001} and {010} facets of BiOCl may account for the facet-dependent hot-electron transfer characteristics. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/62627 |
| Appears in Collections: | 総合化学院 (Graduate School of Chemical Sciences and Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 葉 金花
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