Photocatalytic removal of ciprofloxacin antibiotic from aqueous medium by applying AgI/Ag2O nanocomposite: Activity test, reaction kinetics, and catalyst reusability
|
Mehdi Ahmadmoazzam , Afshin Takdastan , Abdolkazem Neisi , Mehdi Ahmadi , Ali Babaei , Sahand Jorfi |
Corresponding author: Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran , afshin_ir@yahoo.com |
|
Abstract: (1023 Views) |
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. |
|
Keywords: Ciprofloxacin, Nanocomposites, Photolysis, Catalysis, Antibiotic, Aqueous medium |
|
Full-Text [PDF 848 kb]
(1022 Downloads)
|
Type of Study: Original Article |
Subject:
General Received: 2022/09/11 | Accepted: 2022/07/1 | Published: 2022/09/19
|
|
|
|