A facile and versatile method for preparation of colored TiO2 with enhanced solar-driven photocatalytic activity
文献类型：期刊论文
| 作者 | Tan H. Q. ; Zhao Z. ; Niu M. ; Mao C. Y. ; Cao D. P. ; Cheng D. J. ; Feng P. Y. ; Sun Z. C. |
| 刊名 | Nanoscale
 |
| 出版日期 | 2014 |
| 卷号 | 6期号:17页码:10216-10223 |
| ISSN号 | ISBN/2040-3364 |
| 英文摘要 | Colored TiO2 has attracted enormous attention due to its visible light absorption and excellent photocatalytic activity. In this report, we develop a simple and facile solid-state chemical reduction approach for a large-scale production of colored TiO2 at mild temperature (300-350 degrees C). The obtained sample possesses a crystalline core/amorphous shell structure (TiO2@TiO2-x). The oxygen vacancy results in the formation of a disordered TiO2-x shell on the surface of TiO2 nanocrystals. XPS and theoretical calculation results indicate that valence band tail and vacancy band below the conduction band minimum appear for the TiO2-x, which implies that the TiO2@TiO2-x nanocrystal has a narrow band gap and therefore leads to a broad visible light absorption. Oxygen vacancy in a proper concentration promotes the charge separation of photogenerated carriers, which improves the photocatalytic activity of TiO2@TiO2-x nanocrystals. This facile and general method could be potentially used for large scale production of colored TiO2 with remarkable enhancement in the visible light absorption and solar-driven H-2 production. |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/43670]  |
| 专题 | 长春光学精密机械与物理研究所_中科院长春光机所知识产出 |
| 推荐引用方式 GB/T 7714 | Tan H. Q.,Zhao Z.,Niu M.,et al. A facile and versatile method for preparation of colored TiO2 with enhanced solar-driven photocatalytic activity[J]. Nanoscale,2014,6(17):10216-10223. |
| APA | Tan H. Q..,Zhao Z..,Niu M..,Mao C. Y..,Cao D. P..,...&Sun Z. C..(2014).A facile and versatile method for preparation of colored TiO2 with enhanced solar-driven photocatalytic activity.Nanoscale,6(17),10216-10223. |
| MLA | Tan H. Q.,et al."A facile and versatile method for preparation of colored TiO2 with enhanced solar-driven photocatalytic activity".Nanoscale 6.17(2014):10216-10223. |
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