导电聚合物膜修饰电极的制备及在农药检测方面的应用
本实验利用N掺杂石墨烯/聚吡咯复合物对电极进行修饰，之后用此修饰电极对农药百草枯进行检测。
关键词 N掺杂氧化石墨烯 聚吡咯 百草枯 电化学检测
毕业论文设计说明书（论文）外文摘要
Title Preparation of the conductive polymerfilm modified electrode and
its application in the detection of pesticides
Abstract
To meet the needs of modern high-performance electrochemical sensors, through a simple,green soft chemical method, the N-doped graphene oxide and polypyrrole two types of functional composite materials by in situ polymerization method for preparing excellent electrochemical performance, stability good, long cycle life, high specific surface area of the modified electrode material and applied to study the electrochemical sensing paraquat and other pesticides.Controlling the reducing degree of regulation of the graphene oxide type and quantity of surface groups,binding characteristics to stabilize itself polypyrrole graphene oxide molecules.The N-doped graphene oxide and polypyrrole organic compound can be overcome easily stacked graphene,and polypyrrole relatively slow charge-transfer material,the use of poor mechanical properties after repeated shortcomings,give full play to their respective advantages and synergies.
In this study,the use of N-doped graphene/polypyrrole composite electrode was modified after using this modified electrode to detect pesticide paraquat.
Keywords graphene polypyrrole paraquat electrochemical-detection
目 次
1 绪论 1
1.1 研究背景 1
1.2 石墨烯的制备 1
1.2.1 机械剥离法 2
1.2.2 氧化石墨-还原法 2
1.2.3 化学气相沉积法 2
1.2.4 电化学方法 2
1.2.5 电弧法 3
1.2.6 外延生长法 3
1.3 石墨烯的功能化 3
1.4 石墨烯在化学中的应用 4
1.4.1 修饰电极 4
1.4.2 化学电源 4
1.4.3 催化剂和药物载体 4
1.4.4 太阳能电池 5
1.5 百草枯介绍 5
1.5.1 百草枯的检测方法 5
1.5.1.1 分光光度法 5
1.5.1.2 气相色谱法 6
1.5.1.3 液相色谱法 6
2 实验部分 7
2.1 化学药品和试剂 7
2.2 设备 7
2.3 N掺杂氧化石墨烯的制备 7
2.4 N掺杂氧化石墨烯与聚吡咯的复合 7
2.5 NGE-PPY电极的制备 8
3 结果与讨论 9
3.1 相关物质的表征 9
3.1.1 相关物质红外图谱 9
3.1.2 相关物质EIS曲线 9
3.1.3 修饰材料表层微观形态 10
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