Ultrasensitive Electrochemical Detection of Butylated Hydroxy Anisole via Metalloporphyrin Covalent Organic Frameworks Possessing Variable Catalytic Active Sites

Three novel two-dimensional metalloporphyrin COFs (MPor−COF−366, M = Fe, Mn, Cu) were fabricated by changing the metal atoms in the center of the porphyrin framework. The physicochemical characteristics of MPor−COF−366 (M = Fe, Mn, Cu) composites were fully analyzed by diverse electron microscopy an...

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Bibliographic Details
Published in:Biosensors (Basel) 2022-11, Vol.12 (11), p.975
Main Authors: Chu, Huacong, Sun, Xin, Zha, Xiaoqian, Khan, Shifa Ullah, Wang, Yang
Format: Article
Language:English
Subjects:
Anisole
BHA
Catalysis
Chemical detectors
Chemical engineering
Chemical engineering research
Chemical properties
Chromatography
Composite materials
Copper
covalent organic frameworks
Design and construction
Electrochemical analysis
Electrochemical apparatus
electrochemical biosensor
Electrochemistry
Electrodes
Electrolytes
Electron microscopy
Ethanol
Food
Iron
Manganese
Measurement
metalloporphyrin
Morphology
Nanomaterials
Petroleum chemicals
Polymers
Porphyrins
Scanning electron microscopy
Sensors
Spectroscopy
Spectrum analysis
Voltammetry
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Summary:Three novel two-dimensional metalloporphyrin COFs (MPor−COF−366, M = Fe, Mn, Cu) were fabricated by changing the metal atoms in the center of the porphyrin framework. The physicochemical characteristics of MPor−COF−366 (M = Fe, Mn, Cu) composites were fully analyzed by diverse electron microscopy and spectroscopy. Under optimal conditions, experiments on determining butylated hydroxy anisole (BHA) at FePor−COF−366/GCE were conducted using differential pulse voltammetry (DPV). It is noted that the FePor−COF−366/GCE sensor showed excellent electrocatalytic performance in the electrochemical detection of BHA, compared with MnPor−COF−366/GCE and CuPor−COF−366/GCE. A linear relationship was obtained for 0.04–1000 μM concentration of BHA, with a low detection limit of 0.015 μM. Additionally, the designed sensor was successfully employed to detect BHA in practical samples, expanding the development of COF-based composites in electrochemical applications.
ISSN:2079-6374
2079-6374
DOI:10.3390/bios12110975