| Visible-light-activated ni-si co-doped tio2 with photocatalytic performance | |
| Chen, Qifeng1,2; Shi, Weimei1,2; Jiang, Dong1; Xu, Yao1; Wu, Dong1; Sun, Yuhan1 | |
| 刊名 | Acta chimica sinica
 |
| 2010-02-28 | |
| 卷号 | 68期号:4页码:301-308 |
| 关键词 | Anatase tio2 Co-doping Nonaqueous system Visible photocatalysis Rhodamine-b |
| ISSN号 | 0567-7351 |
| 通讯作者 | Chen, qifeng() |
| 英文摘要 | To utilize the solar light more efficiently and enhance the photocatalytic performance of tio2, nickel and silicon co-doped tio2 was synthesized from a compound system of tetrabutyl titanate (tbt), tetraethyl orthosilicate (teos) and nickel nitrate hexahydrate (nnh) at 140 degrees c, which then was annealed at 400 degrees c. the reaction was performed in a teflon-lined steel autoclave with acetic acid as solvent using a non-aqueous method. the as-obtained materials were characterized by x-ray diffraction (xrd), nitrogen adsorption, transmission electron microscopy (tem), x-ray photoelectron spectroscopy (xps), fourier transform infrared spectroscopy (ft-ir), as well as uv-visible diffuse reflectance spectroscopy (uv-vis drs). it was found that all the as-obtained materials were of an anatase phase, which is the tio2 phase with the highest photocatalytic activity among anatase, rutile and brookite. one sample possessed the largest surface area of 303.3 m(2).g(-1). furthermore, nickel and silicon were all introduced into the bulk of tio2. the visible photocatalytic performance of the obtained materials was evaluated by rhodamine-b decomposition. the results showed that the photocatalytic activity of ni-si co-doped tio2 was higher than that of tio2 or ni-doped tio2, which was enhanced with increasing the nickel and silicon contents and then decreased, reaching the maximum at the ni/ti and si/ti molar ratios of 0.01 and 0.20, respectively. the enhanced visible photocatalytic performance was attributed to the synergetic effect of nickel and silicon co-doping. |
| WOS关键词 | TITANIUM-DIOXIDE ; SURFACE ; SILICA ; OXIDE ; PHOTODEGRADATION ; DECOMPOSITION ; TRICHLOROETHYLENE ; NANOPARTICLES ; DEGRADATION ; IRRADIATION |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000275678300003 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2408778 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Chen, Qifeng |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Coal Convers, Inst Coal Chem, 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,Jiang, Dong,et al. Visible-light-activated ni-si co-doped tio2 with photocatalytic performance[J]. Acta chimica sinica,2010,68(4):301-308. |
| APA | Chen, Qifeng,Shi, Weimei,Jiang, Dong,Xu, Yao,Wu, Dong,&Sun, Yuhan.(2010).Visible-light-activated ni-si co-doped tio2 with photocatalytic performance.Acta chimica sinica,68(4),301-308. |
| MLA | Chen, Qifeng,et al."Visible-light-activated ni-si co-doped tio2 with photocatalytic performance".Acta chimica sinica 68.4(2010):301-308. |
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