Modulating the photo-active anatase TiO(2 )by cationic co-dopants: A case of iron and lanthanum
文献类型：期刊论文
| 作者 | Khan, Matiullah; Zeng, Yi; Lan, Zhenhua; Ullah, Asad |
| 刊名 | MATERIALS RESEARCH EXPRESS
 |
| 出版日期 | 2019-06-01 |
| 卷号 | 6期号:6 |
| 关键词 | TiO2 photocatalysis band structure photo-response |
| ISSN号 | 2053-1591 |
| DOI | 10.1088/2053-1591/ab0a45 |
| 文献子类 | Article |
| 英文摘要 | The electronic band structure of TiO2 could be modulated by dopants to harvest the major part of the solar spectrum. A cationic pair of dopant comprising of iron and lanthanum is studied in the lattice of anatase TiO2 and modifications in the geometrical structure, band structure and optical response are observed. Ferrum and lanthanum doping reduced the band gap of TiO2 along with inducing visible light absorption. Isolated states due to Fe are created above top of the valence band in Fe@TiO2. In case of La@TiO2, the La states successfully mixed with the valence and conduction band reducing the band gap. Substitutional La at Ti site in Fe@TiO2 changed the nature of Fe 3d in the band structure and strongly contributed to the narrowing of band gap. The Fe and La co-doped TiO2 possess reduced band gap with superior optical response in the visible regime. The Fe and La as cationic pair of dopant synergistically stabilize the system with the improved optical response explaining the experimental observation of enhanced photoactivity. |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27101]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Khan, Matiullah,Zeng, Yi,Lan, Zhenhua,et al. Modulating the photo-active anatase TiO(2 )by cationic co-dopants: A case of iron and lanthanum[J]. MATERIALS RESEARCH EXPRESS,2019,6(6). |
| APA | Khan, Matiullah,Zeng, Yi,Lan, Zhenhua,&Ullah, Asad.(2019).Modulating the photo-active anatase TiO(2 )by cationic co-dopants: A case of iron and lanthanum.MATERIALS RESEARCH EXPRESS,6(6). |
| MLA | Khan, Matiullah,et al."Modulating the photo-active anatase TiO(2 )by cationic co-dopants: A case of iron and lanthanum".MATERIALS RESEARCH EXPRESS 6.6(2019). |
入库方式： OAI收割
来源：上海硅酸盐研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。