| Abstrakt: |
The antibiotic drug metronidazole (MNZ), which is derived from nitroimidazole, is frequently used to treat a wide range of illnesses in both humans and domestic animals that are brought on by anaerobic bacteria and protozoa. But due to its high level of danger, possible genotoxic, carcinogenic, and mutagenic side effects, and problems of pharmaceutical waste disposal in the environment, this medicine is prohibited on a number of continents. Rare earth metal vanadates (REVO4, RE = Ce, Pr and Nd) were synthesized by a facile hydrothermal method as they have an effective charge transfer ability and significant catalytic behavior towards the detection of pharmaceutical pollutants. In this work, the structural parameters of three sustainable REVO4electrocatalysts, with variation in RE site in the tetragonal forms are investigated by X-ray diffraction, Fourier transform infrared spectroscopy, and transmission electron microscopy. Sustainable electrocatalysts, such as CeVO4, PrVO4and NdVO4, show a tetragonal phase with space group I41/amdand a single crystalline structure. A CeVO4modified glassy carbon electrode (GCE) exhibits higher electrochemical activity than electrodes modified with PrVO4and NdVO4. MNZ was detected using CeVO4/GCE with a wide linear range of 0.02–75 μM, a low detection limit of 4.5 nM, good stability, and selectivity. Additionally, MNZ in actual water samples can be examined using the constructed CeVO4/GCE electrode. A practical technique to manufacture high-efficiency CeVO4-based electrode materials is presented in this work. |
