One-pot, ligand-free, room-temperature synthesis of Au/Pd/ZnO nanoclusters with ultra-low noble metal loading and synergistically improved photocatalytic performances
| Autor: | Shujuan Lyu, Weiying Sun, Malik Zeeshan Shahid, Yunwei Wei, Shuqiang Lyu |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
General Chemical Engineering Nanoparticle 02 engineering and technology General Chemistry engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Catalysis Nanoclusters X-ray photoelectron spectroscopy Chemical engineering engineering Photocatalysis Noble metal Charge carrier 0210 nano-technology High-resolution transmission electron microscopy |
| Zdroj: | RSC advances. 11(37) |
| ISSN: | 2046-2069 |
| Popis: | Au/Pd/ZnO nanoclusters with ultra-low noble metal loadings were prepared by a one-step and ligand-free method at room temperature. HRTEM, ICP-MS, XPS, and elemental mapping analysis confirmed that the obtained Au/Pd/ZnO nanoclusters were composed of ZnO nanoclusters decorated with well-dispersed AuPd nanoparticles. Au/Pd/ZnO nanoclusters exhibited higher photocatalytic activity compared with those of pristine ZnO, Au/ZnO and Pd/ZnO. Moreover, the high catalytic activity of Au/Pd/ZnO nanoclusters could be maintained even after 5 cycles of photocatalytic reaction. A mechanism for the enhanced photocatalytic performance was also suggested, which was in light of the synergistic effects of the SPR effect from Au and the improved photogenerated charge carrier separation from Pd. |
| Databáze: | OpenAIRE |
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