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 μM), high sensitivity (1.386 μA/μM cm²), 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.

中文翻译：

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钒酸钒装饰的硫掺杂氮化碳杂化纳米复合材料：协同电催化剂在检测甲硝唑中的作用

用于精确确定对环境有害的污染物的高效，优良的纳米结构材料的构造已受到科学界的广泛关注。在这方面，我们制备了由钒酸（PrVO ₄； PrV）锚定到硫掺杂的氮化碳（PrV / SCN）组成的纳米复合材料，并将其用于抗生素甲硝唑（MTZ）的电化学检测。通过各种分析和光谱方法表征了所制备的PrV / SCN纳米复合材料的结构和晶体特征。更明显的是，PrV / SCN纳米复合修饰玻碳电极（GCE）表现出出色的线性范围（0.001–2444μM），高灵敏度（1.386μA/μMcm ²），低检测限（0.8 nM），重现性好，抗干扰能力强。值得注意的是，PrV / SCN传感器可以高回收率测定加标尿液和水样品中的MTZ，这表明其在实时应用中的可行性。我们的发现将PrV / SCN确立为电化学检测的强大而有前途的平台。这促进了用于合成新型功能纳米复合材料的创新设计。