A mechanism for enhanced photocatalytic activity of silver-loaded titanium dioxide
文献类型：期刊论文
| 作者 | Liu, SX; Qu, ZP; Han, XW; Sun, CL |
| 刊名 | catalysis today
 |
| 出版日期 | 2004-09-01 |
| 卷号 | 93-5期号:93-95页码:877-884 |
| 关键词 | photocatalytic activity silver-loaded TiO2 photogenerated reactive species |
| 产权排序 | 1;1 |
| 英文摘要 | in this paper, silver-loaded tio2 photocatalyst was prepared by photochemical impregnation method and characterized by transmission electron microscopy (tem), diffuse reflectance spectra (drs), photooxidation of phenol and photoreduction of cr(vi). electron paramagnetic resonance (epr) was used to detect photoproduced paramagnetic radicals. the correlation of photocatalytic activity and photogenerated reactive species was discussed, and the mechanism of silver-loaded tio2 for enhancement of photocatalytic activity was elucidated. the results show that deposited silver on tio2 surface acts as a site where electrons accumulate. the better separation between electrons and holes on the modified tio2 surface allowed more efficiency for the oxidation and reduction reactions. the enhanced photocatalytic activity was mainly attributed to the increased amounts of o-2(.-) reactive species and surface ti3+ reactive center on silver-loaded tio2 photocatalyst. (c) 2004 published by elsevier b.v. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, applied ; chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | electron-paramagnetic-resonance ; uv irradiation ; tio2 colloids ; anatase ; water ; res |
| 收录类别 | ISTP ; SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000223973200126 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/81009]  |
| 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, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.NE Forest Univ, Harbin 150040, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, SX,Qu, ZP,Han, XW,et al. A mechanism for enhanced photocatalytic activity of silver-loaded titanium dioxide[J]. catalysis today,2004,93-5(93-95):877-884. |
| APA | Liu, SX,Qu, ZP,Han, XW,&Sun, CL.(2004).A mechanism for enhanced photocatalytic activity of silver-loaded titanium dioxide.catalysis today,93-5(93-95),877-884. |
| MLA | Liu, SX,et al."A mechanism for enhanced photocatalytic activity of silver-loaded titanium dioxide".catalysis today 93-5.93-95(2004):877-884. |
入库方式： OAI收割
来源：大连化学物理研究所
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