Heterogeneous catalytic degradation of ciprofloxacin with FeS micro-flakes
The common water contaminant ciprofloxacin (CIP) poses a significant threat to the health of both aquatic species and humans. Current iron-sulfide-based catalysts, predominantly nanoparticles, face limitations including aqueous instability, narrow pH adaptability, and agglomeration. To overcome thes...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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| Series: | Results in Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211715625003674 |
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| author | Shaoming Zeng Xiaofang Lai Hai Li Rongtao Ji Duan Zhao Jikang Jian |
| author_facet | Shaoming Zeng Xiaofang Lai Hai Li Rongtao Ji Duan Zhao Jikang Jian |
| author_sort | Shaoming Zeng |
| collection | DOAJ |
| description | The common water contaminant ciprofloxacin (CIP) poses a significant threat to the health of both aquatic species and humans. Current iron-sulfide-based catalysts, predominantly nanoparticles, face limitations including aqueous instability, narrow pH adaptability, and agglomeration. To overcome these bottlenecks, we developed a new iron-sulfide-based catalyst. This study used FeS micro-flakes to degrade CIP. The degradation efficiency and reusability of FeS micro-flakes were evaluated under different conditions. The results indicate that FeS micro-flakes can achieve a removal efficiency of over 99 % within 10 min at pH 6, a temperature of 30 °C, a FeS dosage of 0.8 g/L, and an H2O2 concentration of 10 mmol/L. even after five cycles, the removal efficiency of FeS remained above 99 %. The hydroxyl radical (HO·) was identified as the primary reactive oxygen species (ROS) by chemical quenching experiments and electron paramagnetic resonance (EPR). These results demonstrate the exceptional performance and reusability of the FeS heterogeneous Fenton catalyst |
| format | Article |
| id | doaj-art-b6e3b8d13fbb4e60919a33ff3d04b5cc |
| institution | Kabale University |
| issn | 2211-7156 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Chemistry |
| spelling | doaj-art-b6e3b8d13fbb4e60919a33ff3d04b5cc2025-08-20T04:00:33ZengElsevierResults in Chemistry2211-71562025-07-011610238410.1016/j.rechem.2025.102384Heterogeneous catalytic degradation of ciprofloxacin with FeS micro-flakesShaoming Zeng0Xiaofang Lai1Hai Li2Rongtao Ji3Duan Zhao4Jikang Jian5School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, ChinaCorresponding authors.; School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, ChinaSchool of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, ChinaSchool of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, ChinaSchool of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, ChinaCorresponding authors.; School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, ChinaThe common water contaminant ciprofloxacin (CIP) poses a significant threat to the health of both aquatic species and humans. Current iron-sulfide-based catalysts, predominantly nanoparticles, face limitations including aqueous instability, narrow pH adaptability, and agglomeration. To overcome these bottlenecks, we developed a new iron-sulfide-based catalyst. This study used FeS micro-flakes to degrade CIP. The degradation efficiency and reusability of FeS micro-flakes were evaluated under different conditions. The results indicate that FeS micro-flakes can achieve a removal efficiency of over 99 % within 10 min at pH 6, a temperature of 30 °C, a FeS dosage of 0.8 g/L, and an H2O2 concentration of 10 mmol/L. even after five cycles, the removal efficiency of FeS remained above 99 %. The hydroxyl radical (HO·) was identified as the primary reactive oxygen species (ROS) by chemical quenching experiments and electron paramagnetic resonance (EPR). These results demonstrate the exceptional performance and reusability of the FeS heterogeneous Fenton catalysthttp://www.sciencedirect.com/science/article/pii/S2211715625003674FeS micro-flakesFenton reactionCatalytic degradationCiprofloxacinReactive oxygen species |
| spellingShingle | Shaoming Zeng Xiaofang Lai Hai Li Rongtao Ji Duan Zhao Jikang Jian Heterogeneous catalytic degradation of ciprofloxacin with FeS micro-flakes Results in Chemistry FeS micro-flakes Fenton reaction Catalytic degradation Ciprofloxacin Reactive oxygen species |
| title | Heterogeneous catalytic degradation of ciprofloxacin with FeS micro-flakes |
| title_full | Heterogeneous catalytic degradation of ciprofloxacin with FeS micro-flakes |
| title_fullStr | Heterogeneous catalytic degradation of ciprofloxacin with FeS micro-flakes |
| title_full_unstemmed | Heterogeneous catalytic degradation of ciprofloxacin with FeS micro-flakes |
| title_short | Heterogeneous catalytic degradation of ciprofloxacin with FeS micro-flakes |
| title_sort | heterogeneous catalytic degradation of ciprofloxacin with fes micro flakes |
| topic | FeS micro-flakes Fenton reaction Catalytic degradation Ciprofloxacin Reactive oxygen species |
| url | http://www.sciencedirect.com/science/article/pii/S2211715625003674 |
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