First Utilization of Magnetically-Assisted Photocatalytic Iron Oxide-TiO2 Nanocomposites for the Degradation of the Problematic Antibiotic Ciprofloxacin in an Aqueous Environment-Reference-Cited by-同舟云学术

First Utilization of Magnetically-Assisted Photocatalytic Iron Oxide-TiO2 Nanocomposites for the Degradation of the Problematic Antibiotic Ciprofloxacin in an Aqueous Environment

Published:2024-09-06 Issue:9 Volume:10 Page:66
ISSN:2312-7481
Container-title:Magnetochemistry
language:en
Short-container-title:Magnetochemistry

Author:

Radić Josip¹^ORCID,Žerjav Gregor²^ORCID,Jurko Lucija³,Bošković Perica⁴^ORCID,Fras Zemljič Lidija³,Vesel Alenka⁵,Mavrič Andraž⁶^ORCID,Gudelj Martina⁴,Plohl Olivija³^ORCID

Affiliation:

1. Department of Environmental Chemistry, Faculty of Chemistry and Technology, University of Split, R. Boškovića 35, 21000 Split, Croatia

2. Department of Inorganic Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia

3. Laboratory for Characterization and Processing of Polymers, Faculty of Mechanical Engineering, University of Maribor, Smetanova 17, 2000 Maribor, Slovenia

4. Department of Chemistry, Faculty of Science, University of Split, Ruđera Boškovića 33, 21000 Split, Croatia

5. Department of Surface Engineering and Optoelectronics, Jožef Stefan Institute, Teslova 30, 1000 Ljubljana, Slovenia

6. Materials Research Laboratory, University of Nova Gorica, Vipavska 13, 5000 Nova Gorica, Slovenia

Abstract

The emergence of antimicrobial resistance due to antibiotics in the environment presents significant public health, economic, and societal risks. This study addresses the need for effective strategies to reduce antibiotic residues, focusing on ciprofloxacin degradation. Magnetic iron oxide nanoparticles (IO NPs), approximately 13 nm in size, were synthesized and functionalized with branched polyethyleneimine (bPEI) to obtain a positive charge. These IO-bPEI NPs were combined with negatively charged titanium dioxide NPs (TiO2@CA) to form magnetically photocatalytic IO-TiO2 nanocomposites. Characterization techniques, including X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), infrared spectroscopy (IR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), electrokinetic measurements, and a vibrating sample magnetometer (VSM), confirmed the successful formation and properties of the nanocomposites. The nanocomposites exhibited a high specific surface area, reduced mobility of photogenerated charge carriers, and enhanced photocatalytic properties. Testing the photocatalytic potential of IO-TiO2 with ciprofloxacin in water under UV-B light achieved up to 70% degradation in 150 min, with a degradation rate of 0.0063 min−1. The nanocomposite was magnetically removed after photocatalysis and successfully regenerated for reuse. These findings highlight the potential of IO-TiO2 nanocomposites for reducing ciprofloxacin levels in wastewater, helping curb antibiotic resistance.

Funder

Slovenian Research Agency

Publisher

MDPI AG

Link

https://www.mdpi.com/2312-7481/10/9/66/pdf

Reference99 articles.

1. Role of alternatives to antibiotics in mitigating the antimicrobial resistance crisis;Gupta;Indian J. Med. Res.,2022

2. European Commission (2022). Data on Antimicrobial Resistance (AMR): Use of Antibiotics in the EU Decreases but More Needs to be Done, European Commission.

3. Comparison of ciprofloxacin, cotrimoxazole, and doxycycline on Klebsiella pneumoniae: Time-kill curve analysis;Setiawan;Ann. Med. Surg.,2022

4. Shariati, A., Arshadi, M., Khosrojerdi, M.A., Abedinzadeh, M., Ganjalishahi, M., Maleki, A., Heidary, M., and Khoshnood, S. (2022). The resistance mechanisms of bacteria against ciprofloxacin and new approaches for enhancing the efficacy of this antibiotic. Front. Public Health, 10.

5. Li, L., Liu, J., Zeng, J., Li, J., Liu, Y., Sun, X., Xu, L., and Li, L. (2021). Complete degradation and detoxification of ciprofloxacin by a micro-/nanostructured biogenic mn oxide composite from a highly active Mn2+-oxidizing pseudomonas strain. Nanomaterials, 11.