A bisphenol A sensor based on novel self-assembly of zinc phthalocyanine tetrasulfonic acid-functionalized graphene nanocomposites

被引:26
|
作者
Hou, Keyu [1 ,2 ,3 ]
Huang, Lei [2 ,3 ]
Qi, Yongbo [2 ,3 ]
Huang, Caixia [1 ,2 ,3 ]
Pan, Haibo [1 ,2 ,3 ]
Du, Min [1 ]
机构
[1] Fuzhou Univ, Fujian Key Lab Med Instrument & Pharmaceut Techno, Fuzhou 350002, Fujian, Peoples R China
[2] Fuzhou Univ, Inst Res Funct Mat, Fuzhou 350002, Fujian, Peoples R China
[3] Fuzhou Univ, Coll Chem, Fujian 3501196, Fujian, Peoples R China
来源
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2015年 / 49卷
基金
中国国家自然科学基金;
关键词
Graphene; Self-assembly; pi-pi stack; Bisphenol A detection; Metallophthalocyanine; GLASSY-CARBON ELECTRODE; SINGLE-WALLED CARBON; ELECTROCHEMICAL SENSOR; SENSITIVE DETECTION; NANOPARTICLES; OXIDE; NANOTUBES; EXPOSURE; LEUKEMIA;
D O I
10.1016/j.msec.2015.01.064
中图分类号
TB3 [工程材料学]; R318.08 [生物材料学];
学科分类号
0805 ; 080501 ; 080502 ;
摘要
In this work, a novel zinc phthalocyanine tetrasulfonic acid (ZnTsPc)-fiinctionalized graphene nanocomposites (f-GN) was synthesized by a simple and efficient electrostatic self-assembly method, where the positive charged GN decorated by (3-aminopropyl) triethoxysilane (APES) was self-assemblied with ZnTsPc, a two dimensional (2-D) molecules. It not only enhanced its stability for the hybrid structure, but also avoided the reaggregation of ZnTsPc or f-GN themselves. Based on layered ZnTsPc/f-GN nanocomposites modified glassy carbon electrode, a rapid and sensitive sensor was developed for the determination of bisphenol A (BPA). Under the optimal conditions, the oxidation peak current increased linearly with the concentration of BPA in the range of 5.0 x 10(-8) to 4.0 x 10(-8) M with correlation coefficient 0.998 and limits of detection 2.0 x 10(-8) M. Due to high absorption nature for BPA and electron deficiency on ZnTsPc/f-GN, it presented the unique electron pathway arising from pi-pi stackable interaction during redox process for detecting BPA. The sensor exhibited remarkable long-term stability, good anti-interference and excellent electrocatalytic activity towards BPA detection. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:640 / 647
页数:8
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