Low intensity UV driven dual functional Cu-doped BiVO4 for enhanced methylene blue degradation and Staphylococcus aureus inactivation
This study reported on a dual-functional Cu-doped BiVO4 photocatalyst synthesized via the hydrothermal method. Optimized 1 wt% Cu doping narrowed the bandgap to 2.24 eV, enabling 85% methylene blue (MB) degradation under low-intensity UV (13 W) within 180 min; a 5.1-fold enhancement over bare BiVO4....
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | en |
| Published: |
Nature Research
2025
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/124391/1/124391.pdf http://psasir.upm.edu.my/id/eprint/124391/ https://www.nature.com/articles/s41598-025-17994-z?error=cookies_not_supported&code=66dbc7ab-08cd-474e-ab31-4a4bdcca38c8 |
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| Summary: | This study reported on a dual-functional Cu-doped BiVO4 photocatalyst synthesized via the hydrothermal method. Optimized 1 wt% Cu doping narrowed the bandgap to 2.24 eV, enabling 85% methylene blue (MB) degradation under low-intensity UV (13 W) within 180 min; a 5.1-fold enhancement over bare BiVO4. Radical trapping confirmed hydroxyl radicals (·OH) and superoxide radicals (·O2−) as the dominant reactive species. The catalyst retained > 92% efficiency over three cycles and exhibited moderate antibacterial activity against Staphylococcus aureus (12.6 ± 0.4 mm inhibition zone) in dark conditions, attributed to Cu2⁺ release. Cost analysis further revealed a competitive synthesis cost of approximately RM 7.57 per gram, supporting the economic viability for large-scale environmental remediation applications. The integration of dual photocatalytic and antibacterial functionalities, along with cost efficiency, reinforces the practical potential of Cu-doped BiVO4 in wastewater treatment applications. |
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