Visible region photocatalysis of ce-si/tio2 synthesized using sol-gel-hydrothermal method
文献类型：期刊论文
| 作者 | Chen Qi-Feng1,2; Jiang Dong1; Xu Yao1; Wu Dong1; Sun Yu-Han1 |
| 刊名 | Acta physico-chimica sinica
 |
| 出版日期 | 2009-04-01 |
| 卷号 | 25期号:4页码:617-623 |
| 关键词 | Titania Ce-si co-doped Sol-gel-hydrothermal method Visible-photocatalysis Rhodamine b |
| ISSN号 | 1000-6818 |
| DOI | 10.3866/pku.whxb20090412 |
| 通讯作者 | Xu yao(xuyao@sxicc.ac.cn) |
| 英文摘要 | Cerium and silica co-doped nanoscale tio2 particles were synthesized from a complex compound system of tetrabutyl titanate (tbt), tetraethyl orthosilicate (teos) and cerium nitrate hexahydrate (cnh) at 140 degrees c. the reaction was carried out in a teflon-lined steel autoclave with water as the solvent using a sol-gel-hydrothermal method. the obtained materials were characterized by x-ray diffraction, nitrogen adsorption, transmission electron microscopy, uv-visible diffuse reflectance spectroscopy, fourier transform infrared spectroscopy as well as x-ray photoelectron spectroscopy. we found that all materials were in the anatase phase, even those calcined at 600 degrees c, and that the samples possessed large surface areas. furthermore, si and ce were successfully doped into the bulk tio2. the photocalalytic activity of the doped material was determined by the degradation of rhodamine b (rb) using visible light irradiation. results showed that both ce-doped tio2 and ce-si co-doped tio2 had better visible photoactivity than pure tio2. these particles were all prepared using the same conditions. the highest photocatalytic activity for these samples was obtained using ce/ti and si/ti molar ratios of 0.010 and 0.10, respectively. these ratios are then considered to be the optimal doping dosages. |
| WOS关键词 | CODOPED TIO2 PHOTOCATALYSTS ; TITANIA-SILICA ; CERIUM OXIDE ; NANOPARTICLES ; TRICHLOROETHYLENE ; CATALYSTS ; SURFACE |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Physical |
| 语种 | 英语 |
| WOS记录号 | WOS:000265197400004 |
| 出版者 | PEKING UNIV PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2394626 |
| 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 Conservat, 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 Qi-Feng,Jiang Dong,Xu Yao,et al. Visible region photocatalysis of ce-si/tio2 synthesized using sol-gel-hydrothermal method[J]. Acta physico-chimica sinica,2009,25(4):617-623. |
| APA | Chen Qi-Feng,Jiang Dong,Xu Yao,Wu Dong,&Sun Yu-Han.(2009).Visible region photocatalysis of ce-si/tio2 synthesized using sol-gel-hydrothermal method.Acta physico-chimica sinica,25(4),617-623. |
| MLA | Chen Qi-Feng,et al."Visible region photocatalysis of ce-si/tio2 synthesized using sol-gel-hydrothermal method".Acta physico-chimica sinica 25.4(2009):617-623. |
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来源：中国科学院大学
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