Construction and application of an electrochemical sensor based on MIL-101-NH2(Fe)-derived Fe-C porous materials doped with reduced graphene oxide for baicalin detection
文献类型： 外文期刊
作者： Liu, Zhichao 1 ; Cao, Xiyue 1 ; Han, Lida 2 ; Li, Xiaojing 3 ; Xia, Jianfei 1 ; Wang, Zonghua 1 ;
作者机构： 1.Qingdao Univ, Coll Chem & Chem Engn, Shandong Sino Japanese Ctr Collaborat Res Carbon N, Qingdao Applicat Technol Innovat Ctr Photoelect Bi, Qingdao, Peoples R China
2.Chinese Acad Agr Sci, Biotechnol Res Inst, Beijing, Peoples R China
3.Qingdao Univ, Dept Oral Implantol, Affiliated Hosp, Qingdao, Peoples R China
关键词： Electrochemical sensor; Pyrolytic carbon; MIL-101-NH 2 (Fe); Baicalin; Physical doping
期刊名称：MICROCHEMICAL JOURNAL （ 影响因子：5.1； 五年影响因子：4.7 ）
ISSN： 0026-265X
年卷期： 2025 年 208 卷
页码：
收录情况： SCI
摘要： Baicalin (Bn), a natural flavonoid compound, possesses high pharmacological effects. Here, an electrochemical sensor has been proposed based on an MIL-101-NH2(Fe)-derived Fe porous carbon composite (Fe-C) doped with reduced graphene oxide (rGO) for detecting Bn, designated as Fe-C/rGO. Fabricated through a straightforward physical doping process, Fe-C/rGO exhibits remarkable electrochemical activity. This superiority stems primarily from two key factors. Firstly, the porous structure of Fe-C efficiently concentrates Bn, facilitating its capture and recognition. Secondly, graphene oxide, serving as a substrate for anchoring metal-organic frameworks (MOFs), boosts the electrochemical performance of the composite due to its distinctive two-dimensional structure, abundant active sites, and unparalleled stability. The synergistic interaction between Fe-C and rGO maximizes their respective advantages, leading to a significant enhancement in the sensitivity and selectivity of the electrochemical sensor. Boasting a low detection limit of 7.5 nM and a broad detection range spanning from 30 to 180 nM, this sensor holds immense potential in clinical applications and drug monitoring, offering a reliable and efficient method for Bn detection.
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