Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 11, Issue 8, Pages 7893-7905Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b09204
Keywords
heteroatom; binary metal oxide; environment pollutant; antibiotics; biological sample
Funding
- Ministry of Science and Technology, Taiwan, ROC [MOST 106-2113-M-027-003]
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The construction of efficient and superior nanostructured materials for the precise determination of contaminants that are hazardous to the environment has gained significant attention by the scientific community. In this regard, we fabricated a nanocomposite consisting of praseodymium vanadate (PrVO4; PrV) anchored to sulfur-doped carbon nitride (PrV/SCN) and applied it to the electrochemical detection of the antibiotic drug metronidazole (MTZ). The structural and crystalline features of the as prepared PrV/SCN nanocomposite were characterized by various analytical and spectroscopic methods. More distinctly, the PrV/SCN nanocomposite-modified glassy carbon electrode (GCE) exhibits an outstanding linear range (0.001-2444 mu M), high sensitivity (1.386 mu A/mu M cm(2)), low detection limit (0.8 nM), good reproducibility, and strong anti-interference ability. Notably, the PrV/SCN sensor can determine MTZ in spiked urine and water samples with high recoveries, suggesting its feasibility for real-time applications. Our findings establish PrV/SCN as a robust and promising platform for electrochemical detection. This promotes innovative design for the synthesis of novel functional nanocomposites.
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