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通过化学还原的方法合成有序介孔碳负载纳米金粒子,并构筑有序介孔碳载金/L-赖氨酸/纳米金复合膜修饰玻碳电极;利用扫描电镜观察介孔碳和介孔碳复合膜的微观结构,并用循环伏安法、电化学阻抗谱表征自组装电极的过程.在此基础上用差分脉冲伏安法研究对苯二酚和邻苯二酚混合物在该电极上的电催化氧化,研制了一种基于有序介孔碳载金/L-赖氨酸/纳米金复合膜修饰电极分别检测对苯二酚和邻苯二酚的传感器.在最优的实验条件下,该传感器在对苯二酚和邻苯二酚浓度为1×10-6～8×10-4mol·L-1的范围内具有良好的线性关系,检出限分别为3×10-7mol·L-1、7×10-7mol·L-1.
The ordered mesoporous carbon supported nano-gold particles were synthesized by chemical reduction method and the ordered mesoporous carbon supported on gold / L-lysine / nano-gold composite films modified glassy carbon electrode. The mesoporous carbon and intermediates were observed by scanning electron microscopy Pore carbon composite films were prepared and characterized by cyclic voltammetry and electrochemical impedance spectroscopy. The differential pulse voltammetry was used to study the effect of hydroquinone and pyrocatechol mixture on the electrode , A sensor based on ordered mesoporous carbon supported on gold / L-lysine / gold nanoparticle composite electrode was developed for the detection of hydroquinone and catechol, respectively. Under the optimal experimental conditions , The sensor has a good linear relationship in the range of 1 × 10-6 ~ 8 × 10-4mol·L-1 hydroquinone and catechol with the detection limits of 3 × 10-7mol · L-1,7 × 10-7 mol·L-1.