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- W4285402423 abstract "• The triple-cathode electro-Fenton was designed for efficient dye degradation. • The MFC cathode boosted regeneration of Fe 2+ through green electrons. • The Nickle foam supported GDE cathode efficiently catalyzed H 2 O 2 production. • The SSM activated H 2 O 2 through one-electron reduction and H* reduction. Electro-Fenton (EF) has shown great advantages in the effecient degradation of recalcitrant organic pollutants through in situ generation of •OH, and the main limitations on system performance are the efficiencies of H 2 O 2 activation and Fe 2+ regeneration. In this research, a triple-cathode EF system with a microbial fuel cell (MFC) cathode for the acceleration of Fe 2+ regeneration, a gas diffusion electrode for H 2 O 2 production and a stainless steel mesh (SSM) for electro-activation of H 2 O 2 was designed for efficient degradation of organic pollutants. The triple-cathode EF exhibited improved removal rate for recalcitrant organic pollutants with an average electricity consumption of 18.2 kWh Kg −1 TOC for Rhodamine B degradation, and the dosage of Fe 2+ could be reduced to 0.1 mM due to better utilization of H 2 O 2 and inhibition of parasitic reactions. Electrochemical characterization and theoretical calculation revealed that both one-electron reduction and H*-mediated activation contributed to the electro-activation of H 2 O 2 on SSM. This work demonstrates a novel construction and feasible approach for efficient EF with low cost." @default.
- W4285402423 created "2022-07-14" @default.
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- W4285402423 date "2022-10-01" @default.
- W4285402423 modified "2023-10-10" @default.
- W4285402423 title "A triple-cathode electron-Fenton system for efficient Fe2+ regeneration and in-situ H2O2 electro-activation" @default.
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- W4285402423 doi "https://doi.org/10.1016/j.seppur.2022.121704" @default.
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