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A red anatase TiO2 photocatalyst for solar energy conversion
文献类型：期刊论文
| 作者 | Liu, G ; Yin, LC ; Wang, JQ（王建强） ; Niu, P ; Zhen, C ; Xie, YP ; Cheng, HM |
| 刊名 | ENERGY & ENVIRONMENTAL SCIENCE
 |
| 出版日期 | 2012 |
| 卷号 | 5期号:11 |
| ISSN号 | 1754-5692 |
| 英文摘要 | Narrowing the bandgap of wide-bandgap semiconductor photocatalysts (for instance, anatase TiO2) by introducing suitable heteroatoms has been actively pursued for increasing solar absorption, but usually suffers from a limited thermodynamic/kinetic solubility of substitutional dopants in bulk and/or dopant-induced recombination centres. Here we report a red anatase TiO2 microsphere with a bandgap gradient varying from 1.94 eV on its surface to 3.22 eV in its core by a conceptually different doping approach for harvesting the full spectrum of visible light. This approach uses a pre-doped interstitial boron gradient to weaken nearby Ti-O bonds for the easy substitution of oxygen by nitrogen, and consequently it substantially improves the nitrogen solubility. Furthermore, no nitrogen-related Ti3+ was formed in the red TiO2 due to a charge compensation effect by boron, which inevitably occurs in common nitrogen doped TiO2. The red anatase TiO2 exhibits photoelectrochemical water splitting activity under visible light irradiation. The results obtained may shed light on how to increase high visible light absorbance of wide-bandgap photocatalysts. |
| 语种 | 英语 |
| WOS记录号 | WOS:000310006200046 |
| 公开日期 | 2013-09-11 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/13080]  |
| 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 |
| 推荐引用方式 GB/T 7714 | Liu, G,Yin, LC,Wang, JQ,et al. A red anatase TiO2 photocatalyst for solar energy conversion[J]. ENERGY & ENVIRONMENTAL SCIENCE,2012,5(11). |
| APA | Liu, G.,Yin, LC.,Wang, JQ.,Niu, P.,Zhen, C.,...&Cheng, HM.(2012).A red anatase TiO2 photocatalyst for solar energy conversion.ENERGY & ENVIRONMENTAL SCIENCE,5(11). |
| MLA | Liu, G,et al."A red anatase TiO2 photocatalyst for solar energy conversion".ENERGY & ENVIRONMENTAL SCIENCE 5.11(2012). |
入库方式： OAI收割
来源：上海应用物理研究所
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