Surface oxygen-vacancy induced photocatalytic activity of La(OH)(3) nanorods prepared by a fast and scalable method
文献类型：期刊论文
| 作者 | Dong, Fan; Xiao, Xiang; Jiang, Guangming; Zhang, Yuxin; Cui, Wen; Ma, Jinzhu |
| 刊名 | PHYSICAL CHEMISTRY CHEMICAL PHYSICS
 |
| 出版日期 | 2015 |
| 卷号 | 17期号:24页码:16058-16066 |
| 英文摘要 | Uniform one-dimensional defective La(OH)(3) nanorods were synthesized by a facile, fast and scalable method. This simple method avoids treatment at high temperature, utility of surfactants or templates, and can be finished within a short time. The results indicate that oxygen-vacancies were formed in La(OH)(3) nanorods, which could extend the photoresponse range. The XPS, PL, solid state ESR measurements and DFT calculations revealed the pivotal role of oxygen-vacancy in the formation of an impurity level in the band gap of La(OH)(3). The as-prepared La(OH)(3) nanorods exhibited efficient photocatalytic activity in the removal of NO at the ppb-level under ultraviolet illumination. The highly enhanced photocatalytic activity of La(OH)(3) nanorods could be ascribed to the synergy of the lower impurity level below the conduction band and the high separation efficiency of photogenerated electron-hole pairs. DMPO-ESR spin trapping results imply that the hydroxyl radicals are the main reactive species that are responsible for NO photooxidation. On the basis of combined experimental and theoretical investigation, an oxygen vacancy-mediated photocatalysis mechanism of defective La(OH)(3) nanorods was proposed. This work could not only provide a fast and environmentally friendly approach for the synthesis of nanostructured photocatalysts, but also new insights into the understanding of the role of vacancy in semiconductor photocatalysis. |
| 研究领域[WOS] | Chemistry, Physical ; Physics, Atomic, Molecular & Chemical |
| WOS记录号 | WOS:000356056000066 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32486]  |
| 专题 | 生态环境研究中心_大气污染控制中心 |
| 推荐引用方式 GB/T 7714 | Dong, Fan,Xiao, Xiang,Jiang, Guangming,et al. Surface oxygen-vacancy induced photocatalytic activity of La(OH)(3) nanorods prepared by a fast and scalable method[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2015,17(24):16058-16066. |
| APA | Dong, Fan,Xiao, Xiang,Jiang, Guangming,Zhang, Yuxin,Cui, Wen,&Ma, Jinzhu.(2015).Surface oxygen-vacancy induced photocatalytic activity of La(OH)(3) nanorods prepared by a fast and scalable method.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,17(24),16058-16066. |
| MLA | Dong, Fan,et al."Surface oxygen-vacancy induced photocatalytic activity of La(OH)(3) nanorods prepared by a fast and scalable method".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 17.24(2015):16058-16066. |
入库方式： OAI收割
来源：生态环境研究中心
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