Synergic effect of cation doping and phase composition on the photocatalytic performance of TiO2 under visible light
文献类型：期刊论文
| 作者 | Yu, Fuhai1,2; Wang, Yanjie1,2; Tang, Hailian1,2; Zhang, Yanjie1; Jin, Changzi1; Liu, Xin1; Li, Mingrun1; Wang, Junhu1 |
| 刊名 | catalysis communications
 |
| 出版日期 | 2014-06-05 |
| 卷号 | 51期号:1页码:46-52 |
| 关键词 | Cation doping Phase composition Titanium dioxide Synergic effect Visible light Photocatalyst |
| 通讯作者 | 王军虎 |
| 英文摘要 | the synergic effect of cation doping and phase composition for the further improvement of the photocatalytic activity of tio2 under visible light is reported for the first time. fe3+ and sn4+ co-doped tio2 with optimized phase composition were synthesized through a simple soft-chemical solution method. the visible-light-driven photocatalytic activity of fe3+ and sn4+ co-doped tio2 was 5 times of that of evonik p25 tio2 using degradation of methylene blue as model reaction. the synthesized photocatalysts were characterized by powder x-ray diffraction, uv-vis diffuse reflectance spectroscopy, x-ray photoelectron spectroscopy, sn-119 mossbauer spectroscopy, and x-ray absorption fine structure spectroscopy. it is indicated that sn4+ doping can facilitate the phase transition from anatase to rutile. the different ratios of anatase and rutile can be achieved by tuning the amount of se4+ doped into the lattice. furthermore, the doping of se4+ into tio2 lattice can stabilize the phase composition when fe3+ is co-doped. in the fe3+ and se4+ co-doped tio2, sn4+ is mainly used to tune and stabilize the phase composition of tio2 and fe3+ acts as a doping cation to narrow the band gap of tio2. both band gap and phase composition of tio2 can be tuned effectively by the simultaneous introduction of fe3+ and sn4+. the synergic effect of optimized phase composition (anatase/rutile = 25/75) and narrowed band gap should be the two main reasons for the promoted photocatalytic activity of tio2 under visible light. (c) 2014 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 学科主题 | 物理化学 |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | titanium-dioxide ; mossbauer-spectra ; surface phases ; anatase tio2 ; thin-films ; nanoparticles ; rutile ; xafs ; spectroscopy ; degradation |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000336469200011 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/144321]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Fuhai,Wang, Yanjie,Tang, Hailian,et al. Synergic effect of cation doping and phase composition on the photocatalytic performance of TiO2 under visible light[J]. catalysis communications,2014,51(1):46-52. |
| APA | Yu, Fuhai.,Wang, Yanjie.,Tang, Hailian.,Zhang, Yanjie.,Jin, Changzi.,...&Wang, Junhu.(2014).Synergic effect of cation doping and phase composition on the photocatalytic performance of TiO2 under visible light.catalysis communications,51(1),46-52. |
| MLA | Yu, Fuhai,et al."Synergic effect of cation doping and phase composition on the photocatalytic performance of TiO2 under visible light".catalysis communications 51.1(2014):46-52. |
入库方式： OAI收割
来源：大连化学物理研究所
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