Roles of (001) and (101) Facets of Anatase TiO2 in Photocatalytic Reactions
文献类型：期刊论文
| 作者 | Wang Xiang1,2; Li Ren-Gui1,2; Xu Qian1; Han Hong-Xian1; Li Can1 |
| 刊名 | acta physico-chimica sinica
 |
| 出版日期 | 2013-07-01 |
| 卷号 | 29期号:7页码:1566-1571 |
| 关键词 | TiO2 Anatase Photocatalysis Crystal facet Charge separation |
| 英文摘要 | single crystals of anatase tio2 with exposed (001) and (101) facets were synthesized by a hydrothermal method. we carried out photocatalytic reduction reactions to deposit noble metals (au, ag, and pt) and photocatalytic oxidation reactions to deposit metal oxides (pbo2 and mnox) on the surface of tio2. the deposited anatase tio2 samples were characterized by transmission electron microscopy (tem), scanning electron microscopy (sem), energy-dispersive x-ray spectroscopy (edx), and x-ray photoelectron spectroscopy (xps) to study the roles of the two facets of anatase tio2 in photocatalytic reactions. the noble metals were selectively deposited on the exposed (101) facet, while metal oxides were selectively deposited on the exposed (001) facet. this result indicated that photogenerated electrons and holes mainly accumulated on the (101) and (001) facets, and then took part in photocatalytic reduction and oxidation reactions, respectively. these results also suggested that the simultaneous exposure of the two facets could facilitate charge separation. therefore, it was proposed that the simultaneous exposure of two facets with different functions will be a new strategy to effectively promote photocatalytic reaction. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | photogenerated electrons ; orientation dependence ; single-crystals ; water ; separation ; particles ; oxidation ; reduction ; manganese ; surfaces |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000320439300025 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/137794]  |
| 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 Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Xiang,Li Ren-Gui,Xu Qian,et al. Roles of (001) and (101) Facets of Anatase TiO2 in Photocatalytic Reactions[J]. acta physico-chimica sinica,2013,29(7):1566-1571. |
| APA | Wang Xiang,Li Ren-Gui,Xu Qian,Han Hong-Xian,&Li Can.(2013).Roles of (001) and (101) Facets of Anatase TiO2 in Photocatalytic Reactions.acta physico-chimica sinica,29(7),1566-1571. |
| MLA | Wang Xiang,et al."Roles of (001) and (101) Facets of Anatase TiO2 in Photocatalytic Reactions".acta physico-chimica sinica 29.7(2013):1566-1571. |
入库方式： OAI收割
来源：大连化学物理研究所
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。