Eco-friendly fabrication of multifunctional magnetic plasmonic photocatalyst for adsorption, SERS monitoring and photodegradation of residual fluoroquinolone antibiotics in water

Wenlong Liao; Li Zheng; Juan Hao; Lijuan Huang; Qinghui Wang; Zhihang Yin; Ting Qi; Lingpu Jia; Kunping Liu

doi:10.1016/j.chemosphere.2023.138842

Eco-friendly fabrication of multifunctional magnetic plasmonic photocatalyst for adsorption, SERS monitoring and photodegradation of residual fluoroquinolone antibiotics in water

Chemosphere. 2023 Aug:331:138842. doi: 10.1016/j.chemosphere.2023.138842. Epub 2023 May 2.

Authors

Wenlong Liao¹, Li Zheng², Juan Hao², Lijuan Huang², Qinghui Wang³, Zhihang Yin², Ting Qi⁴, Lingpu Jia⁵, Kunping Liu⁶

Affiliations

¹ School of Food and Biological Engineering, Chengdu University, Chengdu, 610106, China; Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, College of Pharmacy, Chengdu University, Chengdu, 610106, China. Electronic address: liaowenlong@cdu.edu.cn.
² Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, College of Pharmacy, Chengdu University, Chengdu, 610106, China.
³ School of Food and Biological Engineering, Chengdu University, Chengdu, 610106, China.
⁴ Sichuan Industrial Institute of Antibiotics, College of Pharmacy, Chengdu University, Chengdu, 610106, China.
⁵ Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, College of Pharmacy, Chengdu University, Chengdu, 610106, China; Institute for Advanced Study, Chengdu University, Chengdu, 610106, China.
⁶ Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, College of Pharmacy, Chengdu University, Chengdu, 610106, China. Electronic address: liukunping@cdu.edu.cn.

PMID: 37142102
DOI: 10.1016/j.chemosphere.2023.138842

Abstract

In this work, a kind of multifunctional magnetic plasmonic photocatalyst was prepared by a green and efficient process. Magnetic mesoporous anatase titanium dioxide (Fe₃O₄@mTiO₂) was synthesized by microwave-assisted hydrothermal, and Ag NPs were simultaneously in-situ grown on Fe₃O₄@mTiO₂ (Fe₃O₄@mTiO₂@Ag), graphene oxide (GO) was then wrapped on Fe₃O₄@mTiO₂@Ag (Fe₃O₄@mTiO₂@Ag@GO) to increase its adsorption capacity for fluoroquinolone antibiotics (FQs). Owing to the localized surface plasmon resonance (LSPR) effect of Ag, as well as the photocatalytic capacity of TiO₂, a multifunctional platform based on Fe₃O₄@mTiO₂@Ag@GO was constructed for adsorption, surface-enhanced Raman spectroscopy (SERS) monitoring and photodegradation of FQs in water. The quantitative SERS detection of norfloxacin (NOR), ciprofloxacin (CIP), and enrofloxacin (ENR) was demonstrated with LOD of 0.1 μg mL^-1, and the qualitative analysis was confirmed by density functional theory (DFT) calculation. The photocatalytic degradation rate of NOR over Fe₃O₄@mTiO₂@Ag@GO was about 4.6 and 1.4 times faster than that of Fe₃O₄@mTiO₂ and Fe₃O₄@mTiO₂@Ag, indicating the synergetic effects of Ag NPs and GO, the used Fe₃O₄@mTiO₂@Ag@GO can be easily recovered and recycled for at least 5 times. Thus, the eco-friendly magnetic plasmonic photocatalyst provided a potential solution for the removal and monitoring of residual FQs in environmental water.

Keywords: Fluoroquinolone antibiotics; Magnetic plasmonic photocatalyst; Photodegradation; SERS.

MeSH terms

Adsorption
Anti-Bacterial Agents
Fluoroquinolones*
Magnetic Phenomena
Norfloxacin
Photolysis
Water*

Substances

Water
Fluoroquinolones
Norfloxacin
graphene oxide
Anti-Bacterial Agents