Ag-si co-doped tio2 photocatalyst synthesized via a nonaqueous method
文献类型：期刊论文
| 作者 | Chen, Qifeng1,2; Shi, Weimei1,2; Xu, Yao1; Wu, Dong1; Sun, Yuhan1 |
| 刊名 | Journal of nanoscience and nanotechnology
 |
| 出版日期 | 2010-11-01 |
| 卷号 | 10期号:11页码:7221-7225 |
| ISSN号 | 1533-4880 |
| 关键词 | Ag-si co-doped Anatase tio2 Visible light Photocatalytic activity |
| DOI | 10.1166/jnn.2010.2778 |
| 通讯作者 | Xu, yao() |
| 英文摘要 | Ag-si/tio2 photocatalysts were synthesized in a nonaqueous system at 140 degrees c, and then annealed at different temperatures. the obtained photocatalysts were characterized by xrd, tem, bet, tg-dta, xps, as well as uv-vis drs. the results showed that all ag-si/tio2 held an anatase phase and high thermal stability and the phase transformation from anatase to rutile was retarded to about 900 degrees c. the ag-si/tio2 particles were highly mono-dispersed and the particles size became smaller compared to tio2. additionally, uv-vis light absorption shifted to visible region after ag doping. si weaved into the matrix of tio2, while ag dispersed on the surface of tio2 particles. the visible light photocatalytic activity was evaluated by rhodamine b (rhb) degradation in an aqueous solution under visible light irradiation. it was found that the photocatalytic activities of the obtained ag-si/tio2 samples were all higher than those of pure tio2 and ag/tio2, reaching the maximum at the ag and si content of 0.5 mol% and 20.0 mol%, respectively. the enhanced visible photocatalytic activity may be attributed to the simultaneous effects of silver and silicon co-doping. |
| WOS关键词 | TITANIA ; SILVER ; PHOTODEGRADATION ; DECOMPOSITION ; DEGRADATION ; XEROGELS ; POWDERS ; SILICA ; OXIDE |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS类目 | Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| 语种 | 英语 |
| 出版者 | AMER SCIENTIFIC PUBLISHERS |
| WOS记录号 | WOS:000283621300051 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2408836 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Xu, Yao |
| 作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Qifeng,Shi, Weimei,Xu, Yao,et al. Ag-si co-doped tio2 photocatalyst synthesized via a nonaqueous method[J]. Journal of nanoscience and nanotechnology,2010,10(11):7221-7225. |
| APA | Chen, Qifeng,Shi, Weimei,Xu, Yao,Wu, Dong,&Sun, Yuhan.(2010).Ag-si co-doped tio2 photocatalyst synthesized via a nonaqueous method.Journal of nanoscience and nanotechnology,10(11),7221-7225. |
| MLA | Chen, Qifeng,et al."Ag-si co-doped tio2 photocatalyst synthesized via a nonaqueous method".Journal of nanoscience and nanotechnology 10.11(2010):7221-7225. |
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来源：中国科学院大学
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