Cr-MOF-Based Electrochemical Sensor for the Detection of P-Nitrophenol

被引:20
|
作者
Hu, Chao [1 ]
Pan, Ping [2 ]
Huang, Haiping [1 ]
Liu, Hongtao [2 ,3 ]
机构
[1] Jiangxi Univ Sci & Technol, Sch Chem & Chem Engn, Ganzhou 341000, Peoples R China
[2] Cent South Univ, Staff Hosp, Changsha 410083, Peoples R China
[3] Cent South Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China
来源
BIOSENSORS-BASEL | 2022年 / 12卷 / 10期
基金
国家重点研发计划; 中国国家自然科学基金;
关键词
nanoparticle; modified electrode; electrochemical sensor; electrocatalytic activity; detection limit; METAL-ORGANIC FRAMEWORK; POROUS CARBON; MORPHOLOGY; ADSORPTION; PHENOL;
D O I
10.3390/bios12100813
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Cr-MOF nanoparticles were synthesized by a simple hydrothermal method, and their morphology and structure were characterized by SEM, TEM, and XRD techniques. The Cr-MOF modified glassy carbon electrode (Cr-MOF/GCE) was well constructed and served as an efficient electrochemical sensor for the detection of p-nitrophenol (p-NP). It was found that the Cr-MOF nanoparticles had significant electrocatalytic activity toward the reduction of p-NP. The Cr-MOF-based electrochemical sensor exhibited a low detection limit of 0.7 mu M for p-NP in a wide range of 2 similar to 500 mu M and could maintain excellent detection stability in a series of interfering media. The electrochemical sensor was also practically applied to detect p-NP in a local river and confirmed its validity, showing potential application prospects.
引用
收藏
页数:8
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