Photocatalytic removal of ciprofloxacin antibiotic from aqueous medium by applying AgI/Ag2O nanocomposite: Activity test, reaction kinetics, and catalyst reusability
Background: This study examined the removal of ciprofloxacin (CIP), which is a very widely used antibiotic, from an aqueous medium by applying AgI/Ag2O photocatalyst under visible light radiation. Methods: AgI/Ag2O was synthesized conveniently by applying a two-stage precipitation method. The syn...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Kerman University of Medical Sciences
2022-09-01
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| Series: | Environmental Health Engineering and Management |
| Subjects: | |
| Online Access: | http://ehemj.com/article-1-1005-en.html |
| Summary: | Background: This study examined the removal of ciprofloxacin (CIP), which is a very widely used
antibiotic, from an aqueous medium by applying AgI/Ag2O photocatalyst under visible light radiation.
Methods: AgI/Ag2O was synthesized conveniently by applying a two-stage precipitation method. The
synthesized compound was characterized by X-ray powder diffraction (XRD), FE- field emission
scanning electron microscopy (FE-SEM), energy dispersive x-ray (EDX), and UV-Vis spectrophotometry.
Different parameters including initial pH of the solution, initial CIP concentration, reaction kinetics,
and catalyst reusability were investigated.
Results: Concurrent use of AgI and Ag2O caused improved photocatalytic properties in the presence of
UV light. The pH and initial concentration of CIP affected the process efficiency; 95% efficiency was
achieved within 100 min at pH 9. Furthermore, the process efficiency was still maintained over 90%
after four consecutive cycles.
Conclusion: The photocatalytic degradation process using AgI/Ag2O nanocomposite under visible
light radiation is a suitable method for removing CIP from aqueous media due to its high efficiency
and stability. |
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| ISSN: | 2423-3765 2423-4311 |