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首页> 外文期刊>International Journal of Electrochemical Science >A Highly Effective Copper Nanoparticle Coupled with RGO for Electrochemical Detection of Heavy Metal Ions
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A Highly Effective Copper Nanoparticle Coupled with RGO for Electrochemical Detection of Heavy Metal Ions

机译：高效铜纳米粒子与RGO结合用于电化学检测重金属离子

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A highly effective copper nanoparticle (CuNP) coupled with reduced graphene oxide was successfully prepared by liquid phase reduction. The as-prepared products were tested with X-ray diffraction, field- emission transmission electron microscopy, and scanning electron microscopy. CuNPs were distributed averagely on the surface of reduced graphene oxide. CuNP/RGO nanocomposites modified bare glassy carbon electrode was measured by electrochemical impedance spectroscopy and cyclic voltammetry. The availability of CuNP/RGO nanocomposites was analyzed by square wave anodic stripping voltammetry (SWASV). The nanocomposites showed a high electroanalytical activity and eximious sensitivity to Hg(II), Cu(II), Cd(II) and Pb(II), these ions exhibited sensitivities of 27.76, 25.86, 66.30 and 50.17 μA/μM, respectively, and the limits of detection were 0.051, 0.111, 0.203 and 0.186 μM, respectively. The CuNP/RGO nanocomposite was used firstly to detect individually and simultaneously various heavy metal ions. Furthermore, CuNP/RGO/GCE has good anti-interference properties and stability. In this study, CuNP/RGO nanocomposites are presented as a potential material to detect individually and simultaneously heavy metal ions.
机译：通过液相还原成功地制备了具有还原的氧化石墨烯的高效铜纳米粒子（CuNP）。用X射线衍射，场发射透射电子显微镜和扫描电子显微镜测试所制备的产物。 CuNP平均分布在还原的氧化石墨烯的表面上。用电化学阻抗谱和循环伏安法测定了CuNP / RGO纳米复合材料修饰的玻碳电极。通过方波阳极溶出伏安法（SWASV）分析了CuNP / RGO纳米复合材料的可用性。纳米复合材料显示出高的电分析活性和对Hg（II），Cu（II），Cd（II）和Pb（II）的极高灵敏度，这些离子分别显示出27.76、25.86、66.30和50.17μA/μM的灵敏度，以及检测限分别为0.051、0.111、0.203和0.186μM。首先使用CuNP / RGO纳米复合材料来同时检测各种重金属离子。此外，CuNP / RGO / GCE具有良好的抗干扰性能和稳定性。在这项研究中，CuNP / RGO纳米复合材料是潜在的材料，可以同时检测单个和重金属离子。

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