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Degradation of ciprofloxacin by a constitutive g-C(3)N(4)/BiOCl heterojunction under a persulfate system

Ciprofloxacin (CIP) is a third-generation quinolone antimicrobial with broad-spectrum antimicrobial activity, and is not fully metabolized in the human body, resulting in more than 70% of CIP being excreted into water as a prodrug. In this study, g-C(3)N(4)/BiOCl heterojunction structure composites...

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Detalles Bibliográficos
Autores principales: Lin, Yingzi, Wang, Yu, Shi, Chunyan, Zhang, Dongyan, Liu, Gen, Chen, Lei, Yuan, Baoling, Hou, Ao, Zou, Deqiang, Liu, Xiaochen, Zhang, Qingyu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9892887/
https://www.ncbi.nlm.nih.gov/pubmed/36760283
http://dx.doi.org/10.1039/d2ra06500b
Descripción
Sumario:Ciprofloxacin (CIP) is a third-generation quinolone antimicrobial with broad-spectrum antimicrobial activity, and is not fully metabolized in the human body, resulting in more than 70% of CIP being excreted into water as a prodrug. In this study, g-C(3)N(4)/BiOCl heterojunction structure composites were prepared to study the degradation effect of ciprofloxacin (CIP) under photocatalytic conditions. The results showed that CIP at 10 mg L(−1) was best degraded after 90 min at 0.3 g L(−1) g-C(3)N(4)/BiOCl-2, pH of 5.8 and PS dosing of 1 mM. The quenching experiments and electron spin resonance spectroscopy (ESR) confirmed that ˙OH, ˙SO(4)(−) and h(+) played a major role. After the photocatalytic degradation of this reaction system, the biological toxicity of CIP was effectively controlled. This material is stable and the CIP removal rate remained above 80% after four cycles of experiments.