Preparation and photocatalytic activity of ZnO/TiO2/SnO2 mixture
文献类型：期刊论文
| 作者 | Wang, C; Xu, BQ; Wang, XM; Zhao, JC |
| 刊名 | JOURNAL OF SOLID STATE CHEMISTRY
 |
| 出版日期 | 2005-11-01 |
| 卷号 | 178期号:11页码:3500-3506 |
| 关键词 | Zinc Oxide Titanium Dioxide Tin Dioxide Mixed Oxides Solid-state Reaction Photocatalysis Inverse Spinel Zn2ti0.5sn0.5o4 |
| ISSN号 | 0022-4596 |
| DOI | 10.1016/j.jssc.2005.09.005 |
| 英文摘要 | ZnO/TiO2/SnO2 Mixture was prepared by mixing its component solid oxides ZnO, TiO2 and SnO2 in the molar ratio of 4:1:1, followed by calcining the solid mixture at 200-1300 degrees C. The products and solid-state reaction process during the calcinations were characterized with powder X-ray diffraction (XRD), thermogravimetric and differential thermal analysis (TG-DTA), UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS) and Brunauer-Emmett-Teller measurement of specific surface area. Neither solid-state reaction nor change of crystal phase composition took place among the ZnO, TiO2 and SnO2 powders on the calcinations up to 600 degrees C. However, formation of the inverse spinel Zn2TiO4 and Zn2SnO4 was detected at 700-900 and 1100-1200 degrees C, respectively. Further increase of the calcination temperature enabled the mixture to form a single-phase solid solution Zn2Ti0.5Sn0.5O4 with an inverse spinel structure in the space group of O-h(7) - Fd3m. The ZnO/TiO2/SnO2 mixture was photocatalytically active for the degradation of methyl orange in water; its photocatalytic mass activity was 16.4 times that of SnO2, 2.0 times that of TiO2, and 0.92 times that of ZnO after calcination at 500 degrees C for 2 It. But, the mass activity of the mixture decreased with increasing the calcination temperature at above 700 degrees C because of the formation of the photoinactive Zn2TiO4, Zn2SnO4 and Zn2Ti0.5Sn0.5O4. The sample became completely inert for the photocatalysis after prolonged calcination at 1300 degrees C (42 h), since all of the active component oxides were reacted to form the solid solution Zn(2)Ti(0.5)Sno(0.5)O(4) with no photocatalytic activity. (c) 2005 Elsevier Inc. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000233894400038 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/56195]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Xu, BQ |
| 作者单位 | 1.Tsing Hua Univ, Dept Chem, Key Lab Organ Optoelect & Mol Engn, Innovat Catalysis Program, Beijing, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, C,Xu, BQ,Wang, XM,et al. Preparation and photocatalytic activity of ZnO/TiO2/SnO2 mixture[J]. JOURNAL OF SOLID STATE CHEMISTRY,2005,178(11):3500-3506. |
| APA | Wang, C,Xu, BQ,Wang, XM,&Zhao, JC.(2005).Preparation and photocatalytic activity of ZnO/TiO2/SnO2 mixture.JOURNAL OF SOLID STATE CHEMISTRY,178(11),3500-3506. |
| MLA | Wang, C,et al."Preparation and photocatalytic activity of ZnO/TiO2/SnO2 mixture".JOURNAL OF SOLID STATE CHEMISTRY 178.11(2005):3500-3506. |
入库方式： OAI收割
来源：化学研究所
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