Iodine doped anatase TiO(2) photocatalyst with ultra-long visible light response: correlation between geometric/electronic structures and mechanisms
文献类型：期刊论文
| 作者 | G. Liu ; C. H. Sun ; X. X. Yan ; L. Cheng ; Z. G. Chen ; X. W. Wang ; L. Z. Wang ; S. C. Smith ; G. Q. Lu ; H. M. Cheng |
| 刊名 | Journal of Materials Chemistry
 |
| 出版日期 | 2009 |
| 卷号 | 19期号:18页码:2822-2829 |
| 关键词 | titanium-dioxide band-gap thin-films photoelectrochemical properties mechanochemical reaction electronic-structures surface science mesoporous tio2 nitrogen degradation |
| ISSN号 | 0959-9428 |
| 中文摘要 | We report that surface iodine doped TiO(2) with coexisting atomic configurations of iodine dopant, I-O-I and I-O-Ti structures, exhibits an extended absorption edge up to 800 nm. Furthermore, photocatalytic activity investigations confirm the efficient generation of important oxidative species (center dot)OH radicals in photocatalysis oxidation processes beyond 600 nm. It is theoretically found that iodine atoms prefer to be doped within the surface due to the strong I-O repulsion. I-doping in the surface led to little change in its intrinsic bandgap, but the distribution and occupation of localized states of iodine strongly depend on the surface iodine configurations. The latter is responsible for the wider range visible light response exhibited in anatase TiO2 with the coexistence of I-O-I and I-O-Ti structures. The coexistence of I-O-I and I-O-Ti structures can distinctly change the surface structure due to the release of local strain energies. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32080]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | G. Liu,C. H. Sun,X. X. Yan,et al. Iodine doped anatase TiO(2) photocatalyst with ultra-long visible light response: correlation between geometric/electronic structures and mechanisms[J]. Journal of Materials Chemistry,2009,19(18):2822-2829. |
| APA | G. Liu.,C. H. Sun.,X. X. Yan.,L. Cheng.,Z. G. Chen.,...&H. M. Cheng.(2009).Iodine doped anatase TiO(2) photocatalyst with ultra-long visible light response: correlation between geometric/electronic structures and mechanisms.Journal of Materials Chemistry,19(18),2822-2829. |
| MLA | G. Liu,et al."Iodine doped anatase TiO(2) photocatalyst with ultra-long visible light response: correlation between geometric/electronic structures and mechanisms".Journal of Materials Chemistry 19.18(2009):2822-2829. |
入库方式： OAI收割
来源：金属研究所
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。