Thickness-Dependent Photocatalysis of Ultra-Thin MoS<sub>2</sub> Film for Visible-Light-Driven CO<sub>2</sub> Reduction
The thickness of transition metal dichalcogenides (TMDs) plays a key role in enhancing their photocatalytic CO<sub>2</sub> reduction activity. However, the optimum thickness of the layered TMDs that is required to achieve sufficient light absorption and excellent crystallinity has still...
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| Autores principales: | , , , , , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
MDPI AG
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/83306d4c41904ef587ccd4a368131f32 |
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| Sumario: | The thickness of transition metal dichalcogenides (TMDs) plays a key role in enhancing their photocatalytic CO<sub>2</sub> reduction activity. However, the optimum thickness of the layered TMDs that is required to achieve sufficient light absorption and excellent crystallinity has still not been definitively determined. In this work, ultra-thin molybdenum disulfide films (MoS<sub>2</sub>TF) with 25 nm thickness presented remarkable photocatalytic activity, and the product yield increased by about 2.3 times. The photocatalytic mechanism corresponding to the TMDs’ thickness was also proposed. This work demonstrates that the thickness optimization of TMDs provides a cogent direction for the design of high-performance photocatalysts. |
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