首页|Ultrasensitive detection and photocatalytic degradation of polyketide drug tetracycline in environment and food samples using dual-functional Ag doped zinc ferrite embedded functionalized carbon nanofibers

Ultrasensitive detection and photocatalytic degradation of polyketide drug tetracycline in environment and food samples using dual-functional Ag doped zinc ferrite embedded functionalized carbon nanofibers

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The efficient degradation and accurate quantification of tetracycline in environment and food samples is pivotalfor ensuring public health and safety by monitoring potential contamination and maintaining regulatory standards.Hence, in this study, photocatalytic degradation of tetracycline and its electrochemical detection inenvironment and food samples based on dual-functional silver-doped zinc ferrite nanoparticles embeddedchitosan-functionalized carbon nanofibers fabricated on a screen-printed carbon electrode (AgZFO/CHIT-CNF/SPCE) is presented. A hydrothermal method was used in the synthesis of Ag-doped ZFO, and chitosan wasfunctionalized on the CNF surface using a swift and cost-effective chemical modification process of carboxyl groups. Various techniques, such as XRD, HRTEM, elemental mapping, EIS, XPS, FTIR, VSM, BET, UV–Vis DRS,and Raman spectroscopy were used to analyze the characteristics of the prepared nanocomposite. Cyclic voltammetryand differential pulse voltammetry were used to evaluate the surface-controlled electrocatalyticproperties of AgZFO/CHIT-CNF towards tetracycline. Electrochemical tests revealed that the proposed electrodeexhibited excellent sensitivity for detecting tetracycline. The fabricated electrode had a low detection limit of 1nM and a wide linear range (0.2–53.2 μM). The sensor also demonstrated exceptional selectivity, stability, andreusability. The practical feasibility evaluated with real samples, including chicken feed, shrimp, milk, soil, andwastewater, resulted in high recovery values.

Electrochemical sensingEnvironmental safetyTetracyclinePhotocatalysisSurface functionalizationCarbon nanofibers

Neethu Sebastian、Wan-Chin Yu、Deepak Balram、Guo-Ting Hong、Salman S. Alharthi、Hamed M. Al-Saidi

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Institute of Organic and Polymeric Materials, Department of Molecular Science and Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxiao East Road, Taipei, 106, Taiwan, ROC

Department of Electrical Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxiao East Road, Taipei, 106, Taiwan, ROC

Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia

Department of Chemistry, University College in Al-Jamoum, Umm Al-Qura University, 21955, Makkah, Saudi Arabia

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2024

10.1016/j.chemosphere.2023.140692

Chemosphere

Chemosphere

ISSN：0045-6535
年,卷(期)：2024.348(Jan.)
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