Heterogeneous electro-Fenton process for degradation of bisphenol A using a new graphene/cobalt ferrite hybrid catalyst

Santos, Clécia Andrade dos; Cruz, Daiane Requião de Souza; Silva, Wenes Ramos da; Jesus, Gleyce Kelly de; Santos, Alessandra Ferreira dos; Cunha, Graziele C.; Wisniewski, Alberto; Romão, Luciane Pimenta Cruz

doi:10.1007/s11356-020-11913-7

Cited by 15 publications

(1 citation statement)

References 78 publications

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“…A suitable current density will promote the electron transfer between the electrolyte and the cathode, 40 and thus the reaction will occur at the active sites of the cathode. However, when the current density reaches too high, the amount of H 2 O 2 production decreases, since high current density will promote the cathode 4e − transfer to generate the side reaction product H 2 O and the hydrogen precipitation side reaction, 41 and accelerate the oxidation decomposition of the generated H 2 O 2 at the anode. Therefore, too high a current is not conducive to the generation of H 2 O 2 , and the optimal current density was chosen to be 50 mA cm −2 under experimental conditions.…”

Section: Resultsmentioning

confidence: 99%

Performance Study of ACET/PTFE Modified Graphite Felt Electrode for Electrocatalytic H₂O₂ Reaction

Yu,

Wang,

Chen

et al. 2023

ECS Adv.

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Multiphase electro-Fenton is considered a promising technology for the degradation of organic pollutants, and in order to ensure its effectiveness and to make it cheaper and easier, this study develops novel cathodes for in situ H2O2 generation. Graphite felt modified by acetylene black (ACET)/polytetrafluoroethylene (PTFE) was selected to prepare a superhydrophobic electrode (APGF), and the effects of each factor of ACET:PTFE, oxygen flux, and current density on the production of H2O2 were investigated, and the rate of H2O2 production under the optimized conditions of the experiment was 35.96 mg h-1 cm-2 which can meet the requirements of Electro-Fenton technology. The physicochemical characterization of RGF and APGF electrodes was analyzed, and the electrocatalytic performance was evaluated by using an electrochemical workstation to test APGF (7:1~1:3). Probing the mechanism analysis, the APGF electrode surface is hydrophobic and the C/F functional groups synergize to increase the reactive sites and improve the reactivity and selectivity. Dissolved oxygen in the electrolyte diffused to the active center on the cathode surface escaped from the liquid phase, forming a new phase with bubble adsorption for easier activation, and e-conjugated H+ to produce *OOH intermediates, and then e-conjugated H+ to obtain H2O2.

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Section: Resultsmentioning

confidence: 99%

Performance Study of ACET/PTFE Modified Graphite Felt Electrode for Electrocatalytic H₂O₂ Reaction

Yu,

Wang,

Chen

et al. 2023

ECS Adv.

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show abstract

Electrochemical treatment of wastewater to remove contaminants from the production and disposal of plastics: a review

et al. 2022

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Wastewater is major source of contaminants originating from the production, usage, and disposal of plastic materials. Due to their poor biodegradability of these contaminants in municipal wastewater treatment plants, additional advanced oxidation processes such as electrochemical treatments have been developed to improve the standard biological treatment. Here we review the applications of electrochemical treatments of wastewater for the removal of the following plastic contaminants: bisphenol A, phthalic acid esters, and benzotriazoles. We present the effectiveness of treatment in terms of contaminant removal and mineralization; the identification of transformation products; toxicity assessment; and process energy requirements. In the present review, we have focused on the applications of electrochemical treatments of wastewater for the removal of three important groups of contaminants originating mainly from plastics: bisphenol A, phthalic acid esters, and benzotriazoles. The review focuses on the research of electrochemical treatments for these contaminants from the last five years. The papers are assessed from the point of i) effectiveness of treatment in terms of contaminant removal and mineralization; ii) identification of transformation products; iii) toxicity assessment; iv) processes’ energy requirements. Electrochemical treatments were confirmed to be a viable option for the removal of selected contaminants from wastewater.

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High efficiency of graphene/CoFe2O4 nanomaterial in the photocatalytic conversion of CO2 dissolved in water under solar irradiation simulator

dos Santos,

Perini,

Irikura

et al. 2024

J Mater Sci

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Heterogeneous electro-Fenton process for degradation of bisphenol A using a new graphene/cobalt ferrite hybrid catalyst

Cited by 15 publications

References 78 publications

Performance Study of ACET/PTFE Modified Graphite Felt Electrode for Electrocatalytic H₂O₂ Reaction

Performance Study of ACET/PTFE Modified Graphite Felt Electrode for Electrocatalytic H₂O₂ Reaction

Electrochemical treatment of wastewater to remove contaminants from the production and disposal of plastics: a review

High efficiency of graphene/CoFe2O4 nanomaterial in the photocatalytic conversion of CO2 dissolved in water under solar irradiation simulator

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Heterogeneous electro-Fenton process for degradation of bisphenol A using a new graphene/cobalt ferrite hybrid catalyst

Cited by 15 publications

References 78 publications

Performance Study of ACET/PTFE Modified Graphite Felt Electrode for Electrocatalytic H2O2 Reaction

Performance Study of ACET/PTFE Modified Graphite Felt Electrode for Electrocatalytic H2O2 Reaction

Electrochemical treatment of wastewater to remove contaminants from the production and disposal of plastics: a review

High efficiency of graphene/CoFe2O4 nanomaterial in the photocatalytic conversion of CO2 dissolved in water under solar irradiation simulator

Contact Info

Product

Resources

About

Performance Study of ACET/PTFE Modified Graphite Felt Electrode for Electrocatalytic H₂O₂ Reaction

Performance Study of ACET/PTFE Modified Graphite Felt Electrode for Electrocatalytic H₂O₂ Reaction