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Enhanced Photocatalytic Activity of W-Doped and W-La-Codoped TiO2 Nanomaterials under Simulated Sunlight
| Content Provider | Hindawi |
|---|---|
| Author | Hua, Chenghe Dong, Xiaoli Wang, Xiuying Xue, Mang Zhang, Xiufang Ma, Hongchao |
| Editor | Lai, Yuekun |
| Copyright Year | 2014 |
| Abstract | W-doped TiO2 and W-La-codoped TiO2 nanomaterials were successfully synthesized via the sol-gel method. The products were characterized by X-ray diffraction, UV-vis diffuse reflectance spectrophotometer, transmission electron microscopy, and X-ray photoelectron spectroscopy. The presence of W and La results in significant red shift of absorption edge for TiO2-based nanomaterials. The weight ratios of La and W in the composites play important roles in the absorption edge for TiO2-based nanomaterials. The photocatalytic activities of both W-doped TiO2 and W-La-codoped TiO2 photocatalysts for decolorization of methyl orange solution were evaluated under simulated sunlight irradiation. The results showed that both W-doped and W-La-codoped can effectively improve the photocatalytic behaviors of TiO2 nanomaterials ascribed to the improved photoinduced charge carriers separation, enhanced light absorption, and large surface area. Furthermore, W-La-codoped TiO2 exhibited higher photocatalytic activity than W-doped TiO2. Considering their high photocatalytic activity, the doped TiO2 nanomaterials could be applied in wastewater treatment and environmental purification. |
| Page Count | 10 |
| File Format | |
| ISSN | 16874110 |
| DOI | 10.1155/2014/943796 |
| Journal | Journal of Nanomaterials |
| Volume Number | 2014 |
| e-ISSN | 16874129 |
| Language | English |
| Publisher | Hindawi Publishing Corporation |
| Publisher Date | 2014-10-21 |
| Access Restriction | Open |
| Rights License | This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nanoscience and Nanotechnology |
