| BiFeO3/TiO2 core-shell structured nanocomposites as visible-active photocatalysts and their optical response mechanism | |
| Li, Shun ; Lin, Yuan-Hua ; Zhang, Bo-Ping ; Li, Jing-Feng ; Nan, Ce-Wen | |
| 2010-10-12 ; 2010-10-12 | |
| 关键词 | bismuth compounds catalysts nanocomposites nanofabrication nanoparticles photochemistry precipitation (physical chemistry) radiation effects red shift semiconductor materials titanium compounds ultraviolet spectra visible spectra HYDROGEN EVOLUTION LIGHT NANOPARTICLES SURFACE PHOTOELECTROLYSIS SEMICONDUCTORS PREDICTION PARTICLES ELECTRON SYSTEMS Physics, Applied |
| 中文摘要 | Anatase titania-coated bismuth ferrite nanocomposites (BiFeO3/TiO2) have been fabricated via a hydrothermal approach combined with a hydrolysis precipitation processing. Analysis of the microstructure and phase composition reveals that a core-shell BiFeO3/TiO2 structure can be formed, which results in a significant redshift in the UV-vis absorption spectra as compared to a simple mechanical mixture of BiFeO3-TiO2 nanopowders. The core-shell structured BiFeO3/TiO2 nanocomposites exhibit higher photocatalytic activity for photodegradation of Congo red under visible-light (lambda>400 nm) irradiation, which should be attributed to the enhancement of the quantum efficiency by separating the electrons and holes effectively. The obtained BiFeO3/TiO2 nanocomposites can be used as potential visible-light driven photocatalysts. |
| 语种 | 英语 ; 英语 |
| 出版者 | AMER INST PHYSICS ; MELVILLE ; CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/78289]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Li, Shun,Lin, Yuan-Hua,Zhang, Bo-Ping,et al. BiFeO3/TiO2 core-shell structured nanocomposites as visible-active photocatalysts and their optical response mechanism[J],2010, 2010. |
| APA | Li, Shun,Lin, Yuan-Hua,Zhang, Bo-Ping,Li, Jing-Feng,&Nan, Ce-Wen.(2010).BiFeO3/TiO2 core-shell structured nanocomposites as visible-active photocatalysts and their optical response mechanism.. |
| MLA | Li, Shun,et al."BiFeO3/TiO2 core-shell structured nanocomposites as visible-active photocatalysts and their optical response mechanism".(2010). |
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