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首页> 外文期刊>International Journal of Electrochemical Science >Copper/hexagonal Boron Nitride Nanosheet Composite as an Electrochemical Sensor for Nitrite Determination
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Copper/hexagonal Boron Nitride Nanosheet Composite as an Electrochemical Sensor for Nitrite Determination

机译：铜/六方氮化硼纳米片复合材料作为亚硝酸盐测定的电化学传感器

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Hexagonal boron nitride nanosheet (h-BNNS), known as a white graphene is a promising candidatematerial for the fabrication of hybrid materials due to its atomically-thick sheet structure, high thermalconductivity, large surface area, unique chemical stability and thermal oxidation-resistance properties.In this paper, h-BNNS was synthesized by a hydrothermal method and then it dropped on the glassycarbon electrode (GCE) to construct h-BNNS/GCE, which has good stability because of the good filmforming ability of h-BNNS. Finally, a modified electrode (Cu-h-BNNS/GCE) was prepared by anelectrodeposition technique. Due to the characteristics of h-BNNS and Cu and their synergistic effects,the modified electrode shows good electrochemical response to nitrite. The morphology and structureof the nanocomposite are studied by X-ray diffraction (XRD) and scanning electron microscopy(SEM). The electrochemical behaviors of nitrite on the as-prepared electrode were evaluated by cyclicvoltammetry (CV) and differential pulse voltammetry (DPV). Under optimal conditions, the oxidationpeak current of nitrite was linearly proportional to its concentration in the range from 0.09 to 9853.45?M, with a detection limit of 0.03 ?M.
机译：六方氮化硼纳米片（h-BNNS），被称为白色石墨烯，由于其原子厚的片状结构，高导热性，大表面积，独特的化学稳定性和耐热氧化性而成为制造混合材料的有前途的候选材料。本文采用水热法合成了h-BNNS，然后将其滴在玻碳电极（GCE）上以构建h-BNNS / GCE，由于其具有良好的成膜能力，因此具有良好的稳定性。最后，通过电沉积技术制备了修饰电极（Cu-h-BNNS / GCE）。由于h-BNNS和Cu的特性及其协同作用，修饰电极对亚硝酸盐具有良好的电化学响应。通过X射线衍射（XRD）和扫描电子显微镜（SEM）研究了纳米复合材料的形貌和结构。通过循环伏安法（CV）和差示脉冲伏安法（DPV）评估亚硝酸盐在制备电极上的电化学行为。在最佳条件下，亚硝酸盐的氧化峰电流与其浓度成线性比例，范围为0.09至9853.45？M，检出限为0.03？M。

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