An Unusual Strong Visible-Light Absorption Band in Red Anatase TiO2 Photocatalyst Induced by Atomic Hydrogen-Occupied Oxygen Vacancies
文献类型：期刊论文
| 作者 | Yang, YQ; Yin, LC; Gong, Y; Niu, P; Wang, JQ; Gu, L; Chen, XQ; Liu, G; Wang, LZ; Cheng, HM |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2018 |
| 卷号 | 30期号:6页码:- |
| 关键词 | Electron-spin-resonance State Z-scheme Carbon Nitride Polycrystalline Tio2 Energy-conversion Titanium-dioxide Water Efficiency Evolution Performance |
| ISSN号 | 0935-9648 |
| DOI | 10.1002/adma.201704479 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Increasing visible light absorption of classic wide-bandgap photocatalysts like TiO2 has long been pursued in order to promote solar energy conversion. Modulating the composition and/or stoichiometry of these photocatalysts is essential to narrow their bandgap for a strong visible-light absorption band. However, the bands obtained so far normally suffer from a low absorbance and/or narrow range. Herein, in contrast to the common tail-like absorption band in hydrogen-free oxygen-deficient TiO2, an unusual strong absorption band spanning the full spectrum of visible light is achieved in anatase TiO2 by intentionally introducing atomic hydrogen-mediated oxygen vacancies. Combining experimental characterizations with theoretical calculations reveals the excitation of a new subvalence band associated with atomic hydrogen filled oxygen vacancies as the origin of such band, which subsequently leads to active photo-electrochemical water oxidation under visible light. These findings could provide a powerful way of tailoring wide-bandgap semiconductors to fully capture solar light. |
| 语种 | 英语 |
| WOS记录号 | WOS:000424485100018 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/28928]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Yang, YQ 2.Yin, LC 3.Gong, Y 4.Niu, P 5.Wang, JQ 6.Gu, L 7.Chen, XQ 8.Liu, G 9.Wang, LZ 10.Cheng, HM |
| 推荐引用方式 GB/T 7714 | Yang, YQ,Yin, LC,Gong, Y,et al. An Unusual Strong Visible-Light Absorption Band in Red Anatase TiO2 Photocatalyst Induced by Atomic Hydrogen-Occupied Oxygen Vacancies[J]. ADVANCED MATERIALS,2018,30(6):-. |
| APA | Yang, YQ.,Yin, LC.,Gong, Y.,Niu, P.,Wang, JQ.,...&Cheng, HM.(2018).An Unusual Strong Visible-Light Absorption Band in Red Anatase TiO2 Photocatalyst Induced by Atomic Hydrogen-Occupied Oxygen Vacancies.ADVANCED MATERIALS,30(6),-. |
| MLA | Yang, YQ,et al."An Unusual Strong Visible-Light Absorption Band in Red Anatase TiO2 Photocatalyst Induced by Atomic Hydrogen-Occupied Oxygen Vacancies".ADVANCED MATERIALS 30.6(2018):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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