Photodeposition of Pt on the Bi2WO6 nanosheets under irradiation of 365 nm and 450 nm LED lights
| Autor: | Hualin Xie, Jie Wang, Peng Zhang, Shimin Ding, Jianhong Tan, Yuanming Ran |
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| Rok vydání: | 2020 |
| Předmět: |
Excitation wavelength
Materials science Charge separation General Physics and Astronomy 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Adsorption chemistry Irradiation Physical and Theoretical Chemistry 0210 nano-technology Absorption (electromagnetic radiation) Energy source Methylene blue Visible spectrum |
| Zdroj: | Chemical Physics Letters. 739:137019 |
| ISSN: | 0009-2614 |
| Popis: | 365 nm and 450 nm LED lights were used as energy sources to trigger the photodeposition of Pt nanoparticles as cocatalyst on the surface of Bi2WO6 nanosheets, respectively. From the TEM images analysis, more Pt nanoparticles are observed on the surface of the 450-nm-illuminated Pt/Bi2WO6 than the 365-nm-illuminated Pt/Bi2WO6. The 450-nm-illuminated sample showed higher adsorption capacity, higher charge separation efficiency, better optical absorption property in the visible light region, and thus better performance in decolorization of methylene blue (MB). The performance of the photocatalysts with photodeposited Pt as cocatalyst is highly depending on the excitation wavelength in the photodeposition process. |
| Databáze: | OpenAIRE |
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