Magnetic field facilitated electrocatalytic degradation of tetracycline in wastewater by magnetic porous carbonized phthalonitrile resin

Junling Zeng, Wenhao Xie, Ying Guo, Tong Zhao, Heng Zhou*, Qiaoying Wang, Handong Li, Zhanhu Guo, Ben Bin Xu, Hongbo Gu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)

Abstract

Herein, the magnetic field facilitated electrocatalytic degradation of tetracycline is reported for the first time. A magnetic porous carbonized phthalonitrile resin electrocatalyst has been prepared through directly annealing phthalonitrile monomer, polyaniline coated barium ferrite and potassium hydroxide. The tetracycline degradation percentage (DP%) by such electrocatalyst is significantly increased up to 37.42% under magnetic field with the optimal pH value of 5.0 and bias voltage of 1.0 V (vs. SCE). The mechanism of this phenomenon is explained by the spin-selective electron removal process in the reaction between metal-oxygen species and tetracycline on the electrocatalyst. The comparison of degradation pathways for tetracycline with and without magnetic field confirms the improvement of tetracycline DP%. This work opens a new direction for the application of an external magnetic field in the electrocatalytic degradation of antibiotics in wastewater.
Original languageEnglish
Article number123225
Number of pages10
JournalApplied Catalysis B: Environmental
Volume340
Early online date25 Aug 2023
DOIs
Publication statusPublished - 1 Jan 2024

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