Effect of annealing temperature on the surface structure and properties of chromium doped titania
文献类型：期刊论文
| 作者 | Gao Bi-Fen; Ma Ying; Cao Ya-An; Yao Jian-Nian |
| 刊名 | ACTA CHIMICA SINICA
 |
| 出版日期 | 2006-07-14 |
| 卷号 | 64期号:13页码:1329-1333 |
| 关键词 | Semiconductor Doping Titanium Dioxide Chromium Visible Light Absorption |
| ISSN号 | 0567-7351 |
| 英文摘要 | Chromium doped titanium dioxide Cr-TiO2 was prepared by the sol-gel method. The effects of annealing temperature on the crystal structure, oxidation states of chromium, and UV-vis absorption properties of Cr-TiO2 were investigated in details. Experiment results showed that chromium mainly existed on TiO2 surface as Cr2O3 and chromate or dichromate of Cr6+ in Cr-TiO2 annealed at temperature no higher than 723 K. The content of Cr6+ was increased with the increase of temperature. The visible light absorption of Cr-TiO2 within 400 similar to 550 nm should be attributed to the (4)A(2) -->T-4(1) transition of Cr3+ and the O-->Cr6+ charge transfer (1t(1) --> 2e). The absorption within 620 similar to 800 nn was due to the (4)A(2)-->T-4(2) transition of Cr3+. The former was strengthened with the increase of annealing temperature, whereas the latter was weakened. |
| 语种 | 英语 |
| WOS记录号 | WOS:000239181500007 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/59703]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Gao Bi-Fen |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Key Lab Photochem, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Graduated Sch, Beijing 100039, Peoples R China 3.Nankai Univ, Coll Phys, Tianjin 300071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao Bi-Fen,Ma Ying,Cao Ya-An,et al. Effect of annealing temperature on the surface structure and properties of chromium doped titania[J]. ACTA CHIMICA SINICA,2006,64(13):1329-1333. |
| APA | Gao Bi-Fen,Ma Ying,Cao Ya-An,&Yao Jian-Nian.(2006).Effect of annealing temperature on the surface structure and properties of chromium doped titania.ACTA CHIMICA SINICA,64(13),1329-1333. |
| MLA | Gao Bi-Fen,et al."Effect of annealing temperature on the surface structure and properties of chromium doped titania".ACTA CHIMICA SINICA 64.13(2006):1329-1333. |
入库方式： OAI收割
来源：化学研究所
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