Noncovalently copper-porphyrin functionalized reduced graphene oxide for sensitive electrochemical detection of dopamine

被引：12
作者：
Huang, Dong-Lan [1 ,2 ]
Wang, Jian [3 ]
Yuan, Hui-Qing [1 ]
Guo, Hui-Shi [2 ]
Ying, Xiao [3 ]
Zhang, Hao [1 ]
Liu, Hai-Yang [1 ]
机构：
[1] South China Univ Technol, Dept Chem, Key Lab Fuel Cell Technol Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China
[2] Shaoguan Univ, Coll Chem & Environm Engn, Shaoguan 512005, Peoples R China
[3] South China Univ Technol, Dept Appl Phys, Guangzhou 510641, Guangdong, Peoples R China
来源：
JOURNAL OF PORPHYRINS AND PHTHALOCYANINES | 2018年 / 22卷 / 9-10期
基金：
中国国家自然科学基金;
关键词：
graphene; porphyrin; copper; dopamine; electrochemical sensor; HIGH-PERFORMANCE; ASCORBIC-ACID; QUANTUM DOTS; SENSOR; OXIDATION; ELECTRODES; BIOSENSOR; REDUCTION; ELECTROCATALYST; NANOCOMPOSITE;
D O I：
10.1142/S1088424618500761
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The nanocomposite of an electron-deficient flat tetrakis-(ethoxycarbonyl) porphyrin copper(II) (Cu-TECP) and reduced grapheme oxide (RGO) was prepared and used for electrochemical detection of dopamine (DA). The prepared nanocomposite was characterized by scanning electron microscopy, Raman spectroscopy, FT-IR spectroscopy, ultraviolet-visible spectroscopy and electrochemical impedance spectroscopy. Electrochemical studies of the modified glass carbon electrode (GCE) were carried out by the cyclic voltammetry and differential pulse voltammograms (DPV) methods. The RGO/Cu-TECP/GCE exhibited enhanced electrocatalytic activity towards the detection of dopamine (DA). The detection limit was 0.58 mu M, while the linear range was from 2 to 200 mM (R-2 = 0.997).
引用
收藏
页码：853 / 862
页数：10
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