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电化学(中英文) ›› 2008, Vol. 14 ›› Issue (3): 298-303.  doi: 10.61558/2993-074X.1910

• 研究论文 • 上一篇    下一篇

新型纳米金修饰玻碳电极对水杨酸的电催化氧化

崔艳萍;杨昌柱;黄健;濮文虹;张敬东;   

  1. 中国地质大学环境学院;华中科技大学环境科学与工程学院;福建师范大学闽南科技学院生化工程系;华中科技大学化学与化工系;
  • 收稿日期:2008-08-28 修回日期:2008-08-28 出版日期:2008-08-28 发布日期:2008-08-28

Electrocatalytic Oxidation of Salicylic Acid at Novel Gold Nanoparticle-modified Glassy Carbon Electrode

CUI Yan-ping1,2,YANG Chang-zhu2,HUANG Jian3,PU Wen-hong2,ZHANG Jing-dong4   

  1. (1.School of Environment Studies,China University of Geosciences,Wuhan 430074,China;2.College of Environmental Science and Engineering,Huazhong University of Scienceand Technology,Wuhan 430074,China;3.College of Biochemical Engineering MinnanScience and Technology Institute of Fujian Normal University,Quanzhou 362332,Fujian,China;4.College of Chemistry and Chemical Engineering,Huazhong University of Science and Techonlogy,Wuhan 430074,China
  • Received:2008-08-28 Revised:2008-08-28 Published:2008-08-28 Online:2008-08-28

摘要: 借助"种子媒介纳米金属生长法"制备新型的纳米金修饰玻碳电极,应用场发射扫描电镜、紫外-可见光谱分析和电化学方法等,研究该电极的表面形貌及其电化学性能.结果表明,该修饰电极对水杨酸的电化学氧化有明显的电催化作用,电极响应灵敏度是裸玻碳电极表面的1.8倍.其氧化峰电流与水杨酸浓度在5.0×10-7~8.0×10-5mol/L范围内呈良好的线性关系,可用于水中痕量水杨酸的检测.

关键词: 纳米金, 水杨酸, 电催化氧化

Abstract: A gold nano-particles modified glassy carbon electrode(GNP/GCE) was prepared by the"seed-mediated gold nano-particles growth method".Field emission scanning electron microscopy,ultraviolet-visible(UV-vis) spectroscopy analysis and electroalaylsis were employed to study the morphology and electrochemical performances.The resulting electrode showed excellent electro-catalytic activity toward the oxidation of salicylic acid and the response sensitivity was 1.8 fold than that obtained on GCE.Good linear relationship was obtained between response current and salicylic acid concentration in the range of 5.0 × 10-7 ~8.0 × 10-5 mol/L,which could be used in the detection of trace salicylic acid.

Key words: gold nanoparticle, salicylic acid, electrocatalytic oxidation

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