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The role of crystal phase in determining photocatalytic activity of nitrogen doped TiO(2)
文献类型：期刊论文
| 作者 | G. Liu ; X. W. Wang ; Z. G. Chen ; H. M. Cheng ; G. Q. Lu |
| 刊名 | Journal of Colloid and Interface Science
 |
| 出版日期 | 2009 |
| 卷号 | 329期号:2页码:331-338 |
| 关键词 | TiO(2) Anatase Rutile Nitrogen doping Crystal phase visible-light photocatalysis titanium-dioxide band-gap photoelectrochemical properties mechanochemical reaction nanocrystalline tio2 thermal-treatment rutile particles surface science mesoporous tio2 |
| ISSN号 | 0021-9797 |
| 中文摘要 | Two series of nitrogen doped TiO(2) samples with different ratios of anatase to rutile phases were prepared by milling the mixture of P25 TiO(2) and C(6)H(12)N(4) in air and gaseous NH(3) atmosphere, respectively. Compared to air, NH(3) atmosphere plays an important role in delaying the crystallite transformation from anatase to rutile in the mechanochemical reaction of TiO(2) and C(6)H(12)N(4). In contrast to the previously reported results for pure TiO(2), it is found that nitrogen doped TiO(2) with higher content of rutile phase demonstrates higher photocatalytic activity in photodegrading pollutant Rhodamine B under both UV light and visible light irradiation (lambda > 420 nm), and the amount of the surface-adsorbed water and hydroxyl groups on nitrogen doped TiO(2) have little correlations with their crystallite phases (anatase or rutile) and photocatalytic activity. The more abundant surface states characterized by photoluminescence spectroscopy together with the lowered valence band maximum of rutile TiO(2) by nitrogen doping are considered as the key factors for the higher activity of nitrogen doped TiO(2) with higher content of rutile phase. (C) 2008 Elsevier Inc. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32083]  |
| 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,X. W. Wang,Z. G. Chen,et al. The role of crystal phase in determining photocatalytic activity of nitrogen doped TiO(2)[J]. Journal of Colloid and Interface Science,2009,329(2):331-338. |
| APA | G. Liu,X. W. Wang,Z. G. Chen,H. M. Cheng,&G. Q. Lu.(2009).The role of crystal phase in determining photocatalytic activity of nitrogen doped TiO(2).Journal of Colloid and Interface Science,329(2),331-338. |
| MLA | G. Liu,et al."The role of crystal phase in determining photocatalytic activity of nitrogen doped TiO(2)".Journal of Colloid and Interface Science 329.2(2009):331-338. |
入库方式： OAI收割
来源：金属研究所
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