Dye-sensitized Pt@TiO<sub>2</sub> core–shell nanostructures for the efficient photocatalytic generation of hydrogen
Pt@TiO<sub>2</sub> core–shell nanostructures were prepared through a hydrothermal method. The dye-sensitization of these Pt@TiO<sub>2</sub> core–shell structures allows for a high photocatalytic activity for the generation of hydrogen from proton reduction under visible-light...
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| Tác giả chính: | , , |
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| Định dạng: | Other |
| Năm xuất bản: |
Beilstein-Institut
2018
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| Chủ đề: | |
| Truy cập Trực tuyến: | http://lrc.quangbinhuni.edu.vn:8181/dspace/handle/DHQB_123456789/4082 |
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| Tóm tắt: | Pt@TiO<sub>2</sub> core–shell nanostructures were prepared through a hydrothermal method. The dye-sensitization of these Pt@TiO<sub>2</sub> core–shell structures allows for a high photocatalytic activity for the generation of hydrogen from proton reduction under visible-light irradiation. When the dyes and TiO<sub>2</sub> were co-excited through the combination of two irradiation beams with different wavelengths, a synergic effect was observed, which led to a greatly enhanced H<sub>2</sub> generation yield. This is attributed to the rational spatial distribution of the three components (dye, TiO<sub>2</sub>, Pt), and the vectored transport of photogenerated electrons from the dye to the Pt particles via the TiO<sub>2</sub> particle bridge. |
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