Issue |
BIO Web Conf.
Volume 156, 2025
The 6th International Conference on Fisheries, Aquatic, and Environmental Sciences (ICFAES 2024)
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Article Number | 02011 | |
Number of page(s) | 10 | |
Section | Environment (Ecosystem, Habitat Conservation, Climate, Habitat Consultation, Environmental Modeling, Water Resources and Management) | |
DOI | https://doi.org/10.1051/bioconf/202515602011 | |
Published online | 30 January 2025 |
UV-Enhanced removal of enrofloxacin in water using oyster shell-derived CaO-ZnO composite
1 Department of Marine Sciences, Faculty of Marine and Fisheries, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
2 Department of Fisheries Resources Utilization, Faculty of Marine and Fisheries, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
3 Department of Pharmacy, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
4 ARC-PUI Nilam Aceh, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
* Corresponding author: vicky_prajaputra@usk.ac.id
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.
© The Authors, published by EDP Sciences, 2025
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