Photocatalytic properties of Z-scheme heterojunction BiO2-x/ZnWO4 on antibiotics in water
Heterojunction combining with two kinds of different band structures semiconductors was constructed, and its photocatalytic performance could be greatly improved with the wider optical response range. The BiO2-x/ZnWO4 composite was prepared by a simple two-step hydrothermal method. The structure, mo...
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| Published in: | Gong ye shui chu li Vol. 44; no. 4; pp. 138 - 146 |
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| Main Authors: | , , , |
| Format: | Journal Article |
| Language: | Chinese |
| Published: |
Editorial Office of Industrial Water Treatment
01-04-2024
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | Heterojunction combining with two kinds of different band structures semiconductors was constructed, and its photocatalytic performance could be greatly improved with the wider optical response range. The BiO2-x/ZnWO4 composite was prepared by a simple two-step hydrothermal method. The structure, morphology and optical properties of BiO2-x/ZnWO4 were characterized by XRD, SEM and UV-vis diffuse reflectometry. The photocatalytic performance and cyclic stability of BiO2-x/ZnWO4 were studied by degrading tetracycline under visible light. The results showed that with the synergistic action between BiO2-x and ZnWO4, the photo-generated carriers of BiO2-x/ZnWO4 could be effectively separated and the light absorption capacity of BiO2-x/ZnWO4 could be significantly enhanced. After 90 min of visible light illumination, the photodegradation efficiency of the composite towards tetracycline reached 86.04%, and the light response range and photocatalytic activity of the composite were better than the monomer BiO2-x and Zn |
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| ISSN: | 1005-829X |
| DOI: | 10.19965/j.cnki.iwt.2023-0256 |