Hexagonally close-packed three-dimensional nano-flower entrapped on a heteroatom doped carbon sheets: A sensitive electro-catalyst to determine sulfonamide in environmental samples

Saranvignesh Alagarsamy; Kiruthika Mariappan; Shen-Ming Chen; Subramanian Sakthinathan

doi:10.1016/j.foodchem.2023.136826

Hexagonally close-packed three-dimensional nano-flower entrapped on a heteroatom doped carbon sheets: A sensitive electro-catalyst to determine sulfonamide in environmental samples

Food Chem. 2023 Dec 15:429:136826. doi: 10.1016/j.foodchem.2023.136826. Epub 2023 Jul 7.

Authors

Saranvignesh Alagarsamy¹, Kiruthika Mariappan¹, Shen-Ming Chen², Subramanian Sakthinathan³

Affiliations

¹ Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC.
² Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC. Electronic address: smchen78@ms15.hinet.net.
³ Department of Material and Mineral Resources Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC.

PMID: 37453335
DOI: 10.1016/j.foodchem.2023.136826

Abstract

Sulfamethazine (SMZ) is one of the antibiotics frequently found with low concentrations in water bodies including drinking water sources and foodstuffs contamination, which affects the environmental ecosystem and humans. Therefore, the detection of SMZ is necessary to protect the biosphere. This work provides an investigation of the SMZ oxidation process using the electrochemical method by hydrothermally synthesized Barium doped Zinc oxide (BZO) with nitrogen and boron-doped reduced graphene oxide (NBRGO). The BZO/NBRGO composite was characterized using FESEM, EDAX, HR-TEM, Raman-spectroscopy, XRD, and XPS. Further, an electrochemical investigation has also made use of EIS, CV, and DPV. The limit of detection (LOD) of the SMZ has been found 0.003 μM with high sensitivity of 12.804 µA µM^-1 cm^-2 and a linear range (0.01-711 μM). Additionally, the repeatability, reproducibility, and stability of the BZO/NBRGO electrode have an excellent outcome compared with other electrodes. These prepared BZO/NBRGO electrodes have been used for the determination of SMZ in milk and water sample with acceptable recoveries.

Keywords: Anti-biotics; Electro-chemical sensors; Heteroatom doped rGO; Hexagonal zinc oxide; Real sample analysis.

MeSH terms

Carbon* / chemistry
Ecosystem
Electrochemical Techniques / methods
Electrodes
Graphite* / chemistry
Humans
Reproducibility of Results
Sulfamethazine
Sulfanilamide
Water
Zinc

Substances

Carbon
graphene oxide
Graphite
barium oxide
Sulfamethazine
Zinc
Sulfanilamide
Water