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| 论文编号: |
98 |
| 论文题目: |
Enhanced visible-light photo-oxidation of nitric oxide using bismuth-coupled graphitic carbon nitride composite heterostructures |
| 英文论文题目: |
Enhanced visible-light photo-oxidation of nitric oxide using bismuth-coupled graphitic carbon nitride composite heterostructures |
| 第一作者: |
Li, YH |
| 英文第一作者: |
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| 联系作者: |
Lv, Kangle;Ho, Wingkei |
| 英文联系作者: |
Lv, Kangle;Ho, Wingkei |
| 外单位作者单位: |
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| 发表年度: |
2017 |
| 卷: |
38 |
| 期: |
2 |
| 页码: |
321-329 |
| 摘要: |
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| 英文摘要: |
Pure bismuth (Bi) metal-modified graphitic carbon nitride (g-C3N4) composites (Bi-CN) with a pomegranate-like structure were prepared by an in situ method. The Bi-CN composites were used as photocatalysts for the oxidation of nitric oxide (NO) under visible-light irradiation. The inclusion of pure Bi metal in the g-C3N4 layers markedly improved the light absorption of the Bi-CN composites from the ultraviolet to the near-infrared region because of the typical surface plasmon resonance of Bi metal. The separation and transfer of photogenerated charge carriers were greatly accelerated by the presence of built-in Mott-Schottky effects at the interface between Bi metal and g-C3N4. As a result, the Bi-CN composite photocatalysts exhibited considerably enhanced efficiency in the photocatalytic removal of NO compared with that of Bi metal or g-C3N4 alone. The pomegranate-like structure of the Bi-CN composites and an explanation for their improved photocatalytic activity were proposed. This work not only provides a design for highly efficient g-C3N4-based photocatalysts through modification with Bi metal, but also offers new insights into the mechanistic understanding of g-C3N4-based photocatalysis. |
| 刊物名称: |
CHINESE JOURNAL OF CATALYSIS |
| 英文刊物名称: |
CHINESE JOURNAL OF CATALYSIS |
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| 全文链接: |
http://www.sciencedirect.com/science/article/pii/S1872206716625731 |
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