Co3O4-chitosan/biomass-derived porous carbon molecularly imprinted polymer integrated electrode for selective detection of glucose

被引：17
作者：
Peng, Canwei [1 ]
Miao, Longfei [2 ]
Qiu, Dan [1 ]
Chen, Shouhui [1 ]
机构：
[1] Jiangxi Normal Univ, Coll Chem & Chem Engn, Key Lab Fluorine & Silicon Energy Mat & Chem, Minist Educ, 99 Ziyang Rd, Nanchang 330022, Jiangxi, Peoples R China
[2] Wuhan Univ, Inst Adv Studies IAS, Wuhan 430072, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2022年 / 48卷 / 16期
基金：
中国国家自然科学基金;
关键词：
Cobalt tetroxide; Porous carbon; Molecularly imprinted polymer; Glucose electrochemical sensor; CO3O4; SENSOR; SUPERCAPACITOR; NANOSTRUCTURE; NANOFIBERS; MORPHOLOGY; BIOSENSOR;
D O I：
10.1016/j.ceramint.2022.04.294
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The detection of glucose (Glu) is of great significance in medical diagnosis, food processing and biotechnology. Rapid, accurate and convenient detection technology is particularly important. Herein, the Co3O4-PC nanocomposite grown on biomass-derived porous carbon (PC) was prepared by hydrothermal method and subsequent air calcination. Chitosan (CS) was electrodeposited on the surface of Co3O4-PC by potentiostatic deposition with Glu as the template molecule. Finally, the template molecule was eluted by cyclic voltammetry to create specific recognition sites for Glu, and a highly selective and stable Glu sensor was constructed. The obtained MIP (molecularly imprinted polymer)-Glu-CS/Co3O4/PC nanocomposites were characterized by scanning electron microscopy, Raman spectroscopy, cyclic voltammetry, chronoamperometry and so on. The results showed that the MIP-Glu-CS/Co3O4-PC had great catalytic performance for Glu detection with a linear range of 12.17 mu M-2.3 mM, a detection limit of 4.01 mu M, and a sensitivity of 407.5 mu A cm(-2) mM(-1). The sensor has excellent selectivity and stability. This work provides a guide for improving the selectivity of nanozymes.
引用
收藏
页码：23137 / 23144
页数：8
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