Evidence map›Paper›PMID 39847169›Full record

ArticleMikrochimica acta2025

Bimetallic metal-organic frameworks as electrode modifiers for enhanced electrochemical sensing of chloramphenicol.

Jiazhen Tang, Jiawei Chen, Ruijie Xu, Junhui Xu, Xiaolun Peng, Yazhen Wang

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Article in Mikrochimica acta, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

Jiazhen TangKey Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, College of Optoelectronic Materials and Technology, Jianghan University, Wuhan, 430056, China.
Jiawei ChenKey Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, College of Optoelectronic Materials and Technology, Jianghan University, Wuhan, 430056, China.
Ruijie XuKey Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, College of Optoelectronic Materials and Technology, Jianghan University, Wuhan, 430056, China.
Junhui XuKey Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, College of Optoelectronic Materials and Technology, Jianghan University, Wuhan, 430056, China.
Xiaolun PengKey Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, College of Optoelectronic Materials and Technology, Jianghan University, Wuhan, 430056, China. pengxl0212@163.com.
Yazhen WangKey Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, College of Optoelectronic Materials and Technology, Jianghan University, Wuhan, 430056, China. yazhenwang@163.com.

Funding

Excellent Discipline Cultivation Project by JHUN 2023XKZ005Hubei Provincial Science and Technology Innovation Talent Plan Project 2023DJC126Research Fund of Jianghan University 2024JCYJ01the Research Start-up Funds of Jianghan University 06590001the Scientific Research Project of Jianghan University of Hubei Province of China 2021yb025
6 · The paper itself

Abstract

An electrochemical sensor is presented for the detection of the chloramphenicol (CAP) based on a bimetallic MIL-101(Fe/Co) MOF electrocatalyst. The MIL-101(Fe/Co) was prepared by utilizing mixed-valence Fe (III) and Co (II) as metal nodes and terephthalic acid as ligands with a simple hydrothermal method and characterized by SEM, TEM, XRD, FTIR, and XPS. Electrochemical measurements such as electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and differential pulse voltammetry (DPV) showed that bimetallic MIL-101(Fe/Co) had the faster electron transfer, larger electroactive area, and higher electrocatalytic activity compared with  their monometallic counterparts due to the strong synergistic effect between bimetals. Inspired by these results, the MIL-101(Fe/Co)-based sensor was used to detect CAP. Some experiment parameters of pH, Fe and Co molar ratio, MIL-101(Fe/Co) volume, and DPV quiet time were optimized. The direct reduction mechanism of CAP was verified to involve four electrons and four protons process. Finally, the sensitive and selective CAP detection in the concentration range 1 to 200 μM with a detection limit of 0.3 μM was realized by the proposed sensor. The satisfactory recoveries in tap water and lake water indicated the practicability of the proposed electrochemical sensor. It is expected that this work may open up a paradigm for the preparation of MOF-based electrode modifiers with desired electrocatalytic performance for environmental pollution monitoring.

Indexed as

Bimetallic MOF electrocatalystChloramphenicol; Differential pulse voltammetry; Modified glassy carbon electrodeElectrochemical sensorElectrode modifier

Identifiers

PMID39847169

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.