| 摘要: |
| 制备了一种铈-金属有机框架/炭黑（Ce-MOF/CB）纳米复合材料,将其修饰于玻碳电极（GCE）上,用于对5-羟色胺（5-HT）的电化学测定. 通过扫描电子显微镜（SEM）、能量色散X射线谱仪（EDS）和傅里叶变换红外光谱（FTIR）对Ce-MOF/CB进行了表征. 电化学实验结果表明：Ce-MOF/CB对5-HT的电化学氧化具有良好的电催化活性. 5-HT的峰电流与该物质的量浓度在6.77×10-8~1.00×10-5 mol·L-1内呈线性关系,检测限（LOD）达1.0×10-8 mol·L-1（信噪比S/N=3）. |
| 关键词: 炭黑（CB） 纳米复合材料 电催化 5-羟色胺（5-HT） |
| DOI：10.3969/J.ISSN.1000-5137.2024.01.007 |
| 分类号:O 646 |
| 基金项目: |
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| Preparation of Ce-MOF/CB nanocomposite and its application for electrochemical determination of 5-hydroxytryptamine |
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CAI Wenjing, ZHUANG Chen, HE Yan, ZHU Ningning
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College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
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| Abstract: |
| A cerium-metal organic framework/carbon black（Ce-MOF/CB）nanocomposit was prepared and modified on the surface of a glassy carbon electrode（GCE） for the electrochemical determination of 5-hydroxytryptamine（5-HT）. The scanning electron microscope（SEM）, energy dispersive X-ray spectroscopy（EDS）, and fourier transform infrared spectroscopy（FTIR） were chosen for the characterization of the composite. The electrochemical experimental results indicate that Ce-MOF/CB nanocomposite has good electrocatalytic activity for the electrochemical oxidation of 5-HT. The oxidation peak currents are linear to the concentration of 5-HT from 6.77×10-8 to 1.00×10-5 mol·L-1. The detection limit（LOD）was down to 1.00×10-8 mol·L-1 （signal-to-noise ratio S/N=3）. |
| Key words: carbon black（CB） nanocomposite electrocatalysis 5-hydroxytryptamine（5-HT） |
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