Enhanced Electrochemical Sensing Based on Perylenetetracarboxylic Acid Functionalized Carbon Nanohorns Hybrids Modified Electrode
Enhanced Electrochemical Sensing Based on Perylenetetracarboxylic Acid Functionalized Carbon Nanohorns Hybrids Modified Electrode
复制标题
基于苝四甲酸功能化碳纳米角杂化修饰电极的增强电化学传感
DOI：
10.1149/2.0041709jes
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发表时间：
2017
影响因子：
3.9
通讯作者：
Wu Xiangyang
中科院分区：
文献类型：
--
作者：
Zhu Gangbing;Qian Junjuan;Sun Heng;Yi Yinhui;Wu Xiangyang
目前，基于碳纳米角（CNH）的电化学传感研究报道较少，主要障碍之一是CNH在常规溶剂中的溶解性差。本文利用二萘嵌苯四甲酸（perylenetetracarboxylic acid，PTCA）分子通过π-π堆积作用对CNH表面进行功能化，形成了一种新型的纳米杂化PTCA-CNH。有趣的是，PTCA-CNH在各种溶剂中显示出优异的分散性。为了验证PTCA-CNHs纳米杂化物的电化学传感性能，将其修饰在玻碳电极上，测定了3种有害物质（α-萘胺、双酚A和罗丹明B）的电化学行为。结果表明，三种被测物在PTCA-CNHs/GCE上的峰电流均远高于CNHs/GCE和裸GCE。PTCA-CNHs/GCE对双酚A的线性响应范围为0.01-2.3 μM，检出限为0.004 μM。
Presently, there are only few reports for electrochemical sensing based on carbon nanohorns (CNHs), one of the major obstacles is the poor dispersibility of CNHs in conventional solvents. Herein, perylenetetracarboxylic acid (PTCA) molecule was used to functionalize CNHs surface via π-π stacking interactions to form a novel naohybrid PTCA-CNHs. Interesting, the PTCA-CNHs shows excellent dispersibility in various solvent. For demonstrating electrochemical sensing performance of the PTCA-CNHs nanohybrids, the obtained nanohybrids were used to modify glassy carbon electrode (GCE) to measure the electrochemical behaviors of three harmful analytes (α-naphthalenamine, bisphenol A and rhodamine B). The results show that the peak currents of three analytes at PTCA-CNHs/GCE are much higher than those at CNHs/GCE and bare GCE. And the PTCA-CNHs/GCE has a linear response range of 0.01–2.3 μM with a detection limit of 0.004 μM for bisphenol A detection.