Volume 9, Issue 4 (3-2022)
jmsthums 2022, 9(4): 12-24 |
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H P, N M, A H, H K, H A. Photocatalytic removal of the antibiotic Ciprofloxacin from aqueous solutions using Fe-dopedTiO2@Fe3O4 magnetic nanoparticles. jmsthums 2022; 9 (4) : 2
URL: http://jms.thums.ac.ir/article-1-1021-en.html
URL: http://jms.thums.ac.ir/article-1-1021-en.html
1- Faculty of Natural Sciences and Environment, Department of Environmental Engineering, Tehran Science and Research Branch, Islamic Azad University, Tehran, Iran
2- Faculty of Natural Sciences and Environment, Department of Environmental Engineering, Tehran Science and Research Branch, Islamic Azad University, Tehran, Iran
3- Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
4- Chemistry Department, Central Tehran Branch, Islamic Azad University, Tehran, Iran
2- Faculty of Natural Sciences and Environment, Department of Environmental Engineering, Tehran Science and Research Branch, Islamic Azad University, Tehran, Iran
3- Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
4- Chemistry Department, Central Tehran Branch, Islamic Azad University, Tehran, Iran
Abstract: (2302 Views)
Background & Aim: Antibiotics are stable compounds with low biodegradability that are generally not removable by conventional wastewater treatment processes. The aim of this study was to investigate the ability of Fe-doped TiO2@Fe3O4 magnetic nanoparticles in the presence of ultraviolet irradiation to photocatalytic removal of ciprofloxacin from aqueous solutions.
Methods: The sol-gel method was used for the synthesis of Fe-doped TiO2@Fe3O4 nanoparticles and the physical and chemical properties of the catalyst were investigated by SEM, EDX, XRD, VSM and DRS analyzes. Then, the effect of different parameters including pH (3-9), initial concentration of ciprofloxacin (25-75 mg/l) and catalyst dose (0.6 to 0.2 g/l) at different times in photocatalytic elimination of ciprofloxacin were studied.
Results: The results showed that the highest removal efficiency 99.1 % and reaction rate constant of ciprofloxacin the presence of 15-watt UVC radiation was obtained at pH 9, initial concentration of 25 mg/l, catalyst dose of 0.6 g/l and contact time of 60 min, respectively. The stability of nanoparticles after 5 reuses had a good removal rate.
Conclusion: Due to the appropriate removal efficiency of ciprofloxacin by the integrated system Fe-doped TiO2@Fe3O4 + UVC, the application of this process in water and wastewater treatment processes is recommended.
Article number: 2
Type of Study: Research |
Subject:
Special
Received: 2021/12/5 | Accepted: 2022/02/15 | Published: 2022/05/31
Received: 2021/12/5 | Accepted: 2022/02/15 | Published: 2022/05/31
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This work is licensed under a Creative Commons Attribution 4.0 International License.
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