双酚F在三聚氰胺/石墨烯- 碳纳米管复合材料修饰玻碳电极上的电催化氧化行为
Electrocatalytic oxidation of bisphenol F at melamine /graphene-multiwalled carbon nanotubes composites-modified electrode
查看参考文献32篇
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文摘
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本文利用多壁碳纳米管(Multiwalled Carbon Nanotubes,MCNTs)和石墨烯(Graphene,GR)表面丰富的离域(电子的静电作用进行插层处理,得到三明治结构的石墨烯-碳纳米管复合材料,再利用三聚氰胺(Melamine, MAM)对GR-MCNTs进行功能化修饰制得MAM/GR-CNTs复合材料。采用TEM,SEM,FTIR等方法对材料进行表征;研究了双酚F(BPF)在MAM/GR-CNTs /GCE上的电化学行为。BPF在MAM/GR-CNTs /GCE上的电化学反应过程是一个受吸附控制的等电子等质子准一级反应过程(扩散系数DBPF = 1.49×10~(-6) cm~2 /s,电子转移系数α= 0.49) 。同时采用示差脉冲伏安法考察了5种常用塑料容器所盛装水样中BPF的氧化峰电流与浓度之间的关系,氧化峰电流与浓度在30.55~ 102.0 μM范围内呈线性关系。最低检测线为12.13μM。本文为BPF的电化学研究、分析检测提供了理论基础,该传感器有望用于水中BPF的电化学检测。 |
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其他语种文摘
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In this work, the Multiwalled Carbon Nanotubes(MCNTs) was used toproceed Graphene(GR) layer by means of intercalation, make the best of electrostatic interaction of abundant delocalised(electronic, and the sandwich structures of GR-MCNTs composite was prepared by self-assembly method.Then, the GR-MCNTs was modified by Melamine(MAM). The MAM/GR-CNTs was characterized by Scanning electron microscopy,Transmission electron microscope,Fourier transform infrared. The electrochemical behaviors of Bisphenol F(BPF) at the modi? ed electrode were studied.The electrochemical behavior of BPF at different experimental conditions was investigated.The electrochemical behaviors of of BPF at MAM/GR-CNTs /GCE was equal protons and electrons transfer process.And the oxidation of BPF on MAM/GR-CNTs /GCE was an adsorption-controlled process.The electro-catalytic oxidation process kinetics parameters of BPF was investigated: diffusion coefficient D= 1.49×10~(-6) cm~2 /s, electron transfer coefficient α= 0.49, the electro-catalytic oxidation of BPF on the MAM/GR-CNTs /GCE is first order reaction process.This work provided the electrochemistry research, analysis, testing theories for BPF. |
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来源
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化学研究与应用
,2017,29(5):622-629 【扩展库】
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关键词
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三聚氰胺
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石墨烯
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碳纳米管
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双酚F
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电催化氧化
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电化学动力学
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地址
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1.
宁夏医科大学药学院, 宁夏, 银川, 750003
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石嘴山市检验检测中心, 宁夏, 石嘴山, 753000
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兰州大学化学化工学院, 甘肃, 兰州, 730030
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1004-1656 |
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学科
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化学 |
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基金
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国家自然科学基金项目
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宁夏自然科学基金重点项目
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文献收藏号
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CSCD:5990463
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