BiVO4/Cu0.4V2O5 composites as a novel Z-scheme photocatalyst for visible-light-driven CO2 conversion
| Autor: | Zeyu Duan, Xiaojun Zhao, Limiao Chen |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Process Chemistry and Technology Heterojunction 02 engineering and technology 010501 environmental sciences 021001 nanoscience & nanotechnology 01 natural sciences Pollution Photocatalysis Chemical Engineering (miscellaneous) Irradiation Composite material 0210 nano-technology Waste Management and Disposal 0105 earth and related environmental sciences Visible spectrum |
| Zdroj: | Journal of Environmental Chemical Engineering. 9:104628 |
| ISSN: | 2213-3437 |
| Popis: | A novel Z-scheme BiVO4/Cu0.4V2O5 heterojunction photocatalyst have been successfully constructed by growing Cu0.4V2O5 nanosheets on the surface of BiVO4 microplates using a simple co-precipitation method. The photocatalytic performance of BiVO4/Cu0.4V2O5 composites for CO2 reduction was evaluated under the visible-light irradiation. It was revealed that the photocatalytic performance of BiVO4/Cu0.4V2O5 composites varied with the Cu0.4V2O5 content and the composites with a mass ratio of 17.8 % Cu0.4V2O5 was found to be optimal for photocatalytic CO2 reduction. Especially, the optimized BiVO4/Cu0.4V2O5 exhibited a high CO evolution rate of 9.49 μmol g−1 h−1, which is about 4.4 times greater than that of the pristine Cu0.4V2O5. The significantly boosted photocatalytic activity of BiVO4/Cu0.4V2O5 composites is mainly ascribed to the superior charge-transport property derived from the novel Z-scheme structure. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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