One-step fabrication and high photocatalytic activity of porous TiO2 hollow aggregates by using a low-temperature hydrothermal method without templates
文献类型：期刊论文
| 作者 | Liu, Zhaoyang; Sun, Darren D.; Guo, Peng; Leckie, James O. |
| 刊名 | CHEMISTRY-A EUROPEAN JOURNAL
 |
| 出版日期 | 2007 |
| 卷号 | 13期号:6页码:1851-1855 |
| 关键词 | Aggregation Microporous Materials Nanostructures Photocatalysis Titanium Dioxide |
| ISSN号 | 0947-6539 |
| DOI | 10.1002/chem.200601092 |
| 英文摘要 | Porous TiO2 hollow aggregates have been synthesized on a large scale by means of a simple hydrothermal method without using any templates. The as-prepared products were characterized by means of field emission scanning electron microscopy, TEM, nitrogen adsorption, XRD, UV/Vis diffuse reflectance spectroscopy, and FTIR spectroscopy. The photocatalytic activity of the aggregates was demonstrated through the photocatalytic degradation of Rhodamine B. Structural characterization indicates that the porous TiO2 aggregates are 500-800 nm in diameter and display mesoporous structure. ne average pore sizes and BET surface areas of the aggregates are 12 nm and 168 m(2)g(-1), respectively. Optical adsorption investigations show that the aggregates possess an optical band-gap energy of 3.36 eV. The as-prepared products were substantially more effective photocatalysts than the commercially available photocatalyst P25. The dye degradation rate of the porous TiO2 hollow aggregates is more than twice that of P25. The high photoactivities of the aggregates can be attributed to the combined effects of several factors, namely, large surface areas, the existence of mesopores, and the high band-gap energy. In addition, the as-prepared products can be easily recycled. |
| 语种 | 英语 |
| WOS记录号 | WOS:000244577400021 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/60823]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liu, Zhaoyang |
| 作者单位 | 1.Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore 639798, Singapore 2.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China 3.Stanford Univ, Dept Civil & Environm Engn, Stanford, CA 94305 USA |
| 推荐引用方式 GB/T 7714 | Liu, Zhaoyang,Sun, Darren D.,Guo, Peng,et al. One-step fabrication and high photocatalytic activity of porous TiO2 hollow aggregates by using a low-temperature hydrothermal method without templates[J]. CHEMISTRY-A EUROPEAN JOURNAL,2007,13(6):1851-1855. |
| APA | Liu, Zhaoyang,Sun, Darren D.,Guo, Peng,&Leckie, James O..(2007).One-step fabrication and high photocatalytic activity of porous TiO2 hollow aggregates by using a low-temperature hydrothermal method without templates.CHEMISTRY-A EUROPEAN JOURNAL,13(6),1851-1855. |
| MLA | Liu, Zhaoyang,et al."One-step fabrication and high photocatalytic activity of porous TiO2 hollow aggregates by using a low-temperature hydrothermal method without templates".CHEMISTRY-A EUROPEAN JOURNAL 13.6(2007):1851-1855. |
入库方式： OAI收割
来源：化学研究所
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