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

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

doi:10.1016/j.chemosphere.2023.140692

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

Chemosphere. 2024 Jan:348:140692. doi: 10.1016/j.chemosphere.2023.140692. Epub 2023 Nov 10.

Authors

Neethu Sebastian¹, Wan-Chin Yu², Deepak Balram³, Guo-Ting Hong¹, Salman S Alharthi⁴, Hamed M Al-Saidi⁵

Affiliations

¹ 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.
² 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. Electronic address: wanchin@ntut.edu.tw.
³ Department of Electrical Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxiao East Road, Taipei, 106, Taiwan, ROC.
⁴ Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia.
⁵ Department of Chemistry, University College in Al-Jamoum, Umm Al-Qura University, 21955, Makkah, Saudi Arabia.

PMID: 37952826
DOI: 10.1016/j.chemosphere.2023.140692

Abstract

The efficient degradation and accurate quantification of tetracycline in environment and food samples is pivotal for 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 in environment and food samples based on dual-functional silver-doped zinc ferrite nanoparticles embedded chitosan-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 was functionalized 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 voltammetry and differential pulse voltammetry were used to evaluate the surface-controlled electrocatalytic properties of AgZFO/CHIT-CNF towards tetracycline. Electrochemical tests revealed that the proposed electrode exhibited excellent sensitivity for detecting tetracycline. The fabricated electrode had a low detection limit of 1 nM and a wide linear range (0.2-53.2 μM). The sensor also demonstrated exceptional selectivity, stability, and reusability. The practical feasibility evaluated with real samples, including chicken feed, shrimp, milk, soil, and wastewater, resulted in high recovery values.

Keywords: Carbon nanofibers; Electrochemical sensing; Environmental safety; Photocatalysis; Surface functionalization; Tetracycline.

MeSH terms

Anti-Bacterial Agents
Carbon / chemistry
Chitosan*
Electrochemical Techniques
Electrodes
Nanofibers* / chemistry
Polyketides*
Tetracycline
Zinc

Substances

Carbon
ferrite
Zinc
Polyketides
Chitosan
Tetracycline
Anti-Bacterial Agents