The origin of enhanced photocatalytic activities of hydrogenated TiO2 nanoparticles
文献类型：期刊论文
| 作者 | Wang, JO ; Dua, Y; Hao, WC; Wang JO(王嘉鸥); Liu, YN; Feng, HF; Yan, XB; Yang, HG
|
| 刊名 | DALTON TRANSACTIONS
 |
| 出版日期 | 2017 |
| 卷号 | 46期号:32页码:10694-10699 |
| ISSN号 | 1477-9226 |
| DOI | 10.1039/c7dt00827a |
| 文献子类 | Article |
| 英文摘要 | The photocatalytic activity of semiconductors is largely governed by their light absorption, separation of photoinduced charge carriers and surface catalytically active sites, which are primarily controlled by the morphology, crystalline size, structure, and especially the electronic structure of photocatalysts. Black TiO2 is recognized as one of the most promising visible-light photocatalysts, due to its significantly enhanced visible-light photocatalytic performance in comparison to intrinsic TiO2. In this work, black TiO2 is synthesized through the hydrogenation process. The sample shows a TiO2@TiO2-x core/shell structure which is attributed to hydrogenation. By using X-ray photoelectron spectroscopy (XPS), X-ray absorption spectroscopy (XAS), and nuclear magnetic resonance (NMR) spectroscopy, we identified the featured midgap electronic states in black TiO2, which gave rise to the TiO2-x shell layer. These states lead to the improvement of visible-light absorption and the separation of photoinduced charge carriers, which consequently result in remarkable enhanced photocatalytic activities in black TiO2. |
| 电子版国际标准刊号 | 1477-9234 |
| WOS关键词 | X-RAY-ABSORPTION ; TITANIUM-DIOXIDE ; VISIBLE-LIGHT ; SURFACE MODIFICATION ; DEFECTS ; NANOMATERIALS ; WATER |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000408696500024 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285263]  |
| 专题 | 高能物理研究所_实验物理中心 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Wang, JO,Dua, Y,Hao, WC,et al. The origin of enhanced photocatalytic activities of hydrogenated TiO2 nanoparticles[J]. DALTON TRANSACTIONS,2017,46(32):10694-10699. |
| APA | Wang, JO.,Dua, Y.,Hao, WC.,王嘉鸥.,Liu, YN.,...&Yang, HG.(2017).The origin of enhanced photocatalytic activities of hydrogenated TiO2 nanoparticles.DALTON TRANSACTIONS,46(32),10694-10699. |
| MLA | Wang, JO,et al."The origin of enhanced photocatalytic activities of hydrogenated TiO2 nanoparticles".DALTON TRANSACTIONS 46.32(2017):10694-10699. |
入库方式： OAI收割
来源：高能物理研究所
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