Abstract：
The facile sonochemical synthesis is reported of zinc cobalt oxide (ZnCo2O4) composited with carbon nanofiber (CNF). Structural, chemical, and morphological were characterized by X-ray diffraction (XRD), X-ray photoluminescent spectroscopy (XPS), field emission scanning electron microscopy (FESEM), and transmittance electron microscopy (TEM), respectively. ZnCo2O4/CNF-modified GCE was applied to the detection of bisphenol A (BPA). The modified GCE shows enhanced sensing performance towards BPA, which includes a linear range (0.2 to 120 μM L-1) alongside a low limit of detection (38.2 nM L-1), low interference, and good stability. Detection of lower concentrations of BPA enables real sample analysis in the food industries (milk, orange juice, yogurt, tap water, and baby feeding bottles). Surprisingly, the BPA was detected in milk 510 nM L-1, orange juice 340 nM L-1, yogurt 1050 nM L-1, and tap water 140 nM L-1. Moreover, an interaction mechanism between the BPA analyte and ZnCo2O4 was discussed.
摘要：
报道了与碳纳米纤维（CNF）复合的锌钴氧化物（ZnCo2O4）的容易的声化学合成。结构,化学,通过X射线衍射(XRD)对其形貌进行表征,X射线光致发光光谱(XPS),场发射扫描电子显微镜（FESEM），和透射电子显微镜（TEM），分别。将ZnCo2O4/CNF修饰的GCE应用于双酚A（BPA）的检测。改进的GCE对BPA显示出增强的传感性能，其中包括线性范围（0.2至120μML-1）以及低检测限（38.2nML-1），低干扰,和良好的稳定性。检测较低浓度的BPA可以在食品工业中进行真实的样品分析（牛奶，橙汁,酸奶,自来水,和婴儿奶瓶）。令人惊讶的是,在牛奶510nML-1，橙汁340nML-1，酸奶1050nML-1和自来水140nML-1中检测到BPA。此外，讨论了BPA分析物与ZnCo2O4之间的相互作用机理。
