Title

Efficient electro-Fenton catalysis by self-supported CFP@CoFeO electrode

Document Type

Journal Article

Publication Title

Journal of hazardous materials

Volume

423

Issue

Pt A

First Page

127033

PubMed ID

34481397

Publisher

Elsevier

School

School of Engineering

Comments

Guo, M., Lu, M., Zhao, H., Lin, F., He, F., Zhang, J., ... & Zhao, C. (2022). Efficient electro-Fenton catalysis by self-supported CFP@ CoFe2O4 electrode. Journal of Hazardous Materials, 423, 127033. https://doi.org/10.1016/j.jhazmat.2021.127033

Abstract

In this work, the bimetallic iron oxide self-supported electrode was prepared by a simple solvothermal as well as thermal method. CoFeO magnetic nanoparticles were grown in situ on the CFP surface and characterized to reveal the morphology, composition, and electrochemical properties of the electrode. Compared to CFP and CFP@Co-Fe, CFP@CoFeO equipped more efficient mineralization current efficiency and lower energy consumption due to the improved electrocatalytic capacity of CoFeO properly grown on the conductive substrate surface. Further studies showed that the manufactured electrode maintained a high level of stability after continuous operation. According to the free radical trapping experiment, EPR, and liquid mass spectrometry analysis, the rational reaction mechanism of p-nitrophenol was finally proposed, in which ·OH and SO· were considered as the main active oxidants. This work demonstrated the great potential of establishing an electro-Fenton system based on CoFeO immobilized self-supporting cathode for environmental remediation.

DOI

10.1016/j.jhazmat.2021.127033

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