Removal of malachite green by electrochemical oxidation polymerization and electrochemical reduction precipitation: its kinetics and intermediates

In this paper, removal of malachite green (MG) by two separate processes, namely electrochemical oxidization polymerization and electrochemical reduction precipitation process, was studied. Reaction rate constants ( k 0 ), exchange current density i 0 , the transfer coefficients β and the diffusion...

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Veröffentlicht in:Journal of solid state electrochemistry 2022-10, Vol.26 (10), p.2231-2246
Hauptverfasser: Wang, Li, Wang, Junbo, Yu, Aishui, Yu, Zuolong
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description In this paper, removal of malachite green (MG) by two separate processes, namely electrochemical oxidization polymerization and electrochemical reduction precipitation process, was studied. Reaction rate constants ( k 0 ), exchange current density i 0 , the transfer coefficients β and the diffusion coefficient D values were all tested. TR-FTIR (time-resolved Fourier transform infrared spectroscopy), UPLC-MS (ultra-performance liquid chromatography–mass spectrometry), and GC–MS (gas chromatography–mass spectrometer) analyses were applied to investigate the pathway and mechanism of MG degradation. The results show that both electrochemical oxidization polymerization and electrochemical reduction precipitation process were efficient to remove MG.
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subjects Analytical Chemistry
Characterization and Evaluation of Materials
Chemical precipitation
Chemical reduction
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Diffusion coefficient
Electrochemical oxidation
Electrochemistry
Energy Storage
Fourier transforms
Gas chromatography
Liquid chromatography
Malachite green
Mass spectrometry
Original Paper
Physical Chemistry
Polymerization
Rate constants
title Removal of malachite green by electrochemical oxidation polymerization and electrochemical reduction precipitation: its kinetics and intermediates
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