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Volume 12
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Communication

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

by
Chao Hu
1,†,
Ping Pan
2,†,
Haiping Huang
1,* and
Hongtao Liu
2,3,*
1
School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
2
Staff Hospital of Central South University, Central South University, Changsha 410083, China
3
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
*
Authors to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Biosensors 2022, 12(10), 813; https://doi.org/10.3390/bios12100813
Submission received: 29 August 2022 / Revised: 24 September 2022 / Accepted: 28 September 2022 / Published: 1 October 2022
(This article belongs to the Topic Advanced Nanomaterials for Sensing Applications)
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Abstract

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 μM for p-NP in a wide range of 2~500 μM 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.
Keywords: nanoparticle; modified electrode; electrochemical sensor; electrocatalytic activity; detection limit nanoparticle; modified electrode; electrochemical sensor; electrocatalytic activity; detection limit

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MDPI and ACS Style

Hu, C.; Pan, P.; Huang, H.; Liu, H. Cr-MOF-Based Electrochemical Sensor for the Detection of P-Nitrophenol. Biosensors 2022, 12, 813. https://doi.org/10.3390/bios12100813

AMA Style

Hu C, Pan P, Huang H, Liu H. Cr-MOF-Based Electrochemical Sensor for the Detection of P-Nitrophenol. Biosensors. 2022; 12(10):813. https://doi.org/10.3390/bios12100813

Chicago/Turabian Style

Hu, Chao, Ping Pan, Haiping Huang, and Hongtao Liu. 2022. "Cr-MOF-Based Electrochemical Sensor for the Detection of P-Nitrophenol" Biosensors 12, no. 10: 813. https://doi.org/10.3390/bios12100813

APA Style

Hu, C., Pan, P., Huang, H., & Liu, H. (2022). Cr-MOF-Based Electrochemical Sensor for the Detection of P-Nitrophenol. Biosensors, 12(10), 813. https://doi.org/10.3390/bios12100813

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