UV-Enhanced removal of enrofloxacin in water using oyster shell-derived CaO-ZnO composite
The contamination of aquatic environments by enrofloxacin, a commonly used veterinary antibiotic, poses serious risks to both ecosystem health and human safety. This study investigates the potential of calcium oxide-zinc oxide (CaO-ZnO) composites derived from oyster shells for the UV-enhanced degra...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2025-01-01
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| Series: | BIO Web of Conferences |
| Online Access: | https://www.bio-conferences.org/articles/bioconf/pdf/2025/07/bioconf_icfaes24_02011.pdf |
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| Summary: | The contamination of aquatic environments by enrofloxacin, a commonly used veterinary antibiotic, poses serious risks to both ecosystem health and human safety. This study investigates the potential of calcium oxide-zinc oxide (CaO-ZnO) composites derived from oyster shells for the UV-enhanced degradation of enrofloxacin in water. The CaO-ZnO composites were synthesized via calcination of oyster shells mixed with zinc oxide and characterized using X-ray diffraction (XRD) to determine their mineral properties. Enrofloxacin was detected at a maximum absorption wavelength of 272 nm using UV-Vis spectroscopy. The removal efficiency of the CaO-ZnO composites was assessed at room temperature, with varying contact times (30-150 minutes) and pH levels (3, 6, and 9). The results demonstrated that the CaO-ZnO composite achieved the best performance at pH 3, with a removal efficiency of 42.87% after 150 minutes. Under UV light from sunlight, the removal efficiency was significantly enhanced, reaching 61.04% compared to 14.53% for CaO. These findings suggest that CaO-ZnO composites derived from oyster shells are promising materials for the effective UV-enhanced removal of enrofloxacin from contaminated water sources. However, further improvements are needed by optimizing additional parameters to enhance their effectiveness. |
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| ISSN: | 2117-4458 |