| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1604963 | Journal of Alloys and Compounds | 2017 | 8 Pages |
Abstract
TiO2 hollow spheres are prepared by a template method, and TiO2@V2O5 core-shell hollow porous microspheres are successfully synthesized through a facile hydrothermal progress followed by sol-gel technique. The diameters of TiO2@V2O5 core-shell hollow porous microspheres are quite uniform ranging from 700Â nm to 900Â nm. It is found that the photodegradation rate of TiO2@V2O5 core-shell hollow porous microspheres towards benzene is greatly enhanced compared with that of TiO2 hollow porous microspheres and P25, and TiO2@V2O5-10% core-shell hollow porous microspheres possess the best photocatalytic activity of 100% in 55Â min and 68.9% in 75Â min under UV-visible and visible light irradiation, respectively. The reason lies in the fact that the light absorption range is extended due to the narrowed band gap of TiO2@V2O5 core-shell hollow porous microspheres, and the photogenerated electrons and holes are effectively separated as well as the surface charge carrier transfer rate is promoted.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Yueli Liu, Linlin Wang, Wei Jin, Chao Zhang, Min Zhou, Wen Chen,