High photocatalytic activity of lanthanum doped Bi2MoO6 nanosheets with exposed (0 0 1) facets
| Autor: | Peisi Liao, Chuxuan Yu, Yunan Yi, Yifan Zhou, Wei Li, Bin Li, Renwei Tian, Pan Zhang, Mei Zhou, Lihui Dong, Minguang Fan |
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| Rok vydání: | 2018 |
| Předmět: |
Photoluminescence
Materials science Diffuse reflectance infrared fourier transform Band gap chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Photochemistry 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials X-ray photoelectron spectroscopy chemistry Photocatalysis Lanthanum Electrical and Electronic Engineering 0210 nano-technology High-resolution transmission electron microscopy Visible spectrum |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 29:8617-8629 |
| ISSN: | 1573-482X 0957-4522 |
| DOI: | 10.1007/s10854-018-8876-8 |
| Popis: | Bi2MoO6 nanosheets with the different lanthanum contents were prepared by the facile hydrothermal method. The samples were characterized by X-ray diffraction, field emission scanning electron microscopy, high resolution transmission electron microscopy, X-ray photoelectron spectroscopy, Brunauer–Emmett–Teller surface area, UV–Visible diffuse reflectance spectroscopy, and photoluminescence emission spectra. Results indicated that Bi2MoO6 nanosheets selectively exposed (0 0 1) facets as the main external surfaces with the manifold of La content. When the molar ratio of La:Bi is 0.5%, the obtained Bi2MoO6 sample exhibited the highest catalytic performance for RhB degradation under the visible light, which can be attributed to the synergic effect of optimum bandgap and the effectively separation of photogenerated electron–hole. The possible photolytic degradation mechanism was further discussed and the photogenerated holes (h+) was found to be the major active species. |
| Databáze: | OpenAIRE |
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