Coupling cathodic electro-fenton with anodic photo-electrochemical oxidation: A feasibility study on the mineralization of paracetamol

Benjamin O. Orimolade; Busisiwe N. Zwane; Babatunde A. Koiki; Matthieu Rivallin; Mikhael Bechelany; Nonhlangabezo Mabuba; Geoffroy Lesage; Marc Cretin; Omotayo A. Arotiba

doi:10.1016/j.jece.2020.104394

Coupling cathodic electro-fenton with anodic photo-electrochemical oxidation: A feasibility study on the mineralization of paracetamol

Benjamin O. Orimolade, Busisiwe N. Zwane, Babatunde A. Koiki, Matthieu Rivallin, Mikhael Bechelany, Nonhlangabezo Mabuba, Geoffroy Lesage, Marc Cretin, Omotayo A. Arotiba

Chemical Sciences

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Abstract

A cathodic electro-Fenton (EF) process consisting of thermally treated carbon felt and anodic photoelectrochemical (PEC) oxidation process consisting of bismuth vanadate-bismuth oxyiodide electrodeposited on fluorine doped tin oxide glass (FTO-BiVO4/BiOI) were coupled into a single electrochemical advanced oxidation system for the mineralisation of paracetamol. EF degradation of paracetamol yielded 71 % total organic carbon (TOC) removal after 4 h with a current density of 20 mA cm-2. With the coupled EF/PEC system, the complete removal of paracetamol was achieved within 2 h and a higher mineralisation of 92 % TOC removal after 4 h was recorded with a 10 mA cm-2 current density. The specific energy consumption of the EF/PEC process was about 64 % lower than the energy consumption of EF process alone. The treated aqueous solution exhibited reduced toxicity in comparison with the untreated solution with about 1% inhibition of Vibrio fisheri. This EF/PEC system showed a synergic improvement in performance over EF and PEC.

Original language	English
Article number	104394
Journal	Journal of Environmental Chemical Engineering
Volume	8
Issue number	5
DOIs	https://doi.org/10.1016/j.jece.2020.104394
Publication status	Published - Oct 2020

Keywords

Electro-Fenton
Paracetamol
Photoanode
Photoelectrochemical oxidation
Wastewater treatment

ASJC Scopus subject areas

Chemical Engineering (miscellaneous)
Waste Management and Disposal
Pollution
Process Chemistry and Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jece.2020.104394

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Orimolade, B. O., Zwane, B. N., Koiki, B. A., Rivallin, M., Bechelany, M., Mabuba, N., Lesage, G., Cretin, M., & Arotiba, O. A. (2020). Coupling cathodic electro-fenton with anodic photo-electrochemical oxidation: A feasibility study on the mineralization of paracetamol. Journal of Environmental Chemical Engineering, 8(5), Article 104394. https://doi.org/10.1016/j.jece.2020.104394

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title = "Coupling cathodic electro-fenton with anodic photo-electrochemical oxidation: A feasibility study on the mineralization of paracetamol",

abstract = "A cathodic electro-Fenton (EF) process consisting of thermally treated carbon felt and anodic photoelectrochemical (PEC) oxidation process consisting of bismuth vanadate-bismuth oxyiodide electrodeposited on fluorine doped tin oxide glass (FTO-BiVO4/BiOI) were coupled into a single electrochemical advanced oxidation system for the mineralisation of paracetamol. EF degradation of paracetamol yielded 71 % total organic carbon (TOC) removal after 4 h with a current density of 20 mA cm-2. With the coupled EF/PEC system, the complete removal of paracetamol was achieved within 2 h and a higher mineralisation of 92 % TOC removal after 4 h was recorded with a 10 mA cm-2 current density. The specific energy consumption of the EF/PEC process was about 64 % lower than the energy consumption of EF process alone. The treated aqueous solution exhibited reduced toxicity in comparison with the untreated solution with about 1% inhibition of Vibrio fisheri. This EF/PEC system showed a synergic improvement in performance over EF and PEC.",

keywords = "Electro-Fenton, Paracetamol, Photoanode, Photoelectrochemical oxidation, Wastewater treatment",

author = "Orimolade, {Benjamin O.} and Zwane, {Busisiwe N.} and Koiki, {Babatunde A.} and Matthieu Rivallin and Mikhael Bechelany and Nonhlangabezo Mabuba and Geoffroy Lesage and Marc Cretin and Arotiba, {Omotayo A.}",

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AU - Koiki, Babatunde A.

AU - Rivallin, Matthieu

AU - Bechelany, Mikhael

AU - Mabuba, Nonhlangabezo

AU - Lesage, Geoffroy

AU - Cretin, Marc

AU - Arotiba, Omotayo A.

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AB - A cathodic electro-Fenton (EF) process consisting of thermally treated carbon felt and anodic photoelectrochemical (PEC) oxidation process consisting of bismuth vanadate-bismuth oxyiodide electrodeposited on fluorine doped tin oxide glass (FTO-BiVO4/BiOI) were coupled into a single electrochemical advanced oxidation system for the mineralisation of paracetamol. EF degradation of paracetamol yielded 71 % total organic carbon (TOC) removal after 4 h with a current density of 20 mA cm-2. With the coupled EF/PEC system, the complete removal of paracetamol was achieved within 2 h and a higher mineralisation of 92 % TOC removal after 4 h was recorded with a 10 mA cm-2 current density. The specific energy consumption of the EF/PEC process was about 64 % lower than the energy consumption of EF process alone. The treated aqueous solution exhibited reduced toxicity in comparison with the untreated solution with about 1% inhibition of Vibrio fisheri. This EF/PEC system showed a synergic improvement in performance over EF and PEC.

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KW - Paracetamol

KW - Photoanode

KW - Photoelectrochemical oxidation

KW - Wastewater treatment

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Coupling cathodic electro-fenton with anodic photo-electrochemical oxidation: A feasibility study on the mineralization of paracetamol

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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