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

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

doi:10.1016/j.jece.2020.104394

Cited by 72 publications

(17 citation statements)

References 56 publications

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“…The mechanism of the oxidation of acetaminophen has been extensively studied in the literature (Figure 8). In the case of CWPO of acetaminophen, the reaction pathway begins with the formation of benzoquinone, which result upon further oxidation in the generation of benzaldehyde and benzoic acid [81][82][83]. These by-products further decompose in smaller aliphatic organic acids such as maleic, oxalic, acetic and formic acids, which are non-toxic products [82,83] The mechanism of the oxidation of acetaminophen has been extensively studied in the literature (Figure 8).…”

Section: Or Peermentioning

confidence: 99%

“…In the case of CWPO of acetaminophen, the reaction pathway begins with the formation of benzoquinone, which result upon further oxidation in the generation of benzaldehyde and benzoic acid [81][82][83]. These by-products further decompose in smaller aliphatic organic acids such as maleic, oxalic, acetic and formic acids, which are non-toxic products [82,83] The mechanism of the oxidation of acetaminophen has been extensively studied in the literature (Figure 8). In the case of CWPO of acetaminophen, the reaction pathway begins with the formation of benzoquinone, which result upon further oxidation in the generation of benzaldehyde and benzoic acid [81][82][83].…”

Section: Or Peermentioning

confidence: 99%

“…These by-products further decompose in smaller aliphatic organic acids such as maleic, oxalic, acetic and formic acids, which are non-toxic products [82,83] The mechanism of the oxidation of acetaminophen has been extensively studied in the literature (Figure 8). In the case of CWPO of acetaminophen, the reaction pathway begins with the formation of benzoquinone, which result upon further oxidation in the generation of benzaldehyde and benzoic acid [81][82][83]. These by-products further decompose in smaller aliphatic organic acids such as maleic, oxalic, acetic and formic acids, which are non-toxic products [82,83].…”

Section: Or Peermentioning

confidence: 99%

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Metal-Loaded Mesoporous MCM-41 for the Catalytic Wet Peroxide Oxidation (CWPO) of Acetaminophen

et al. 2021

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MCM-41 based catalysts (molar ratio Si/Al = 40) were prepared by a hydrothermal route, modified by ionic exchange with different metals (Cu, Cr, Fe and Zn) and finally calcined at 550 °C. The catalysts were fully characterized by different techniques that confirmed the formation of oxides of the different metals on the surfaces of all materials. Low-angle X-ray diffraction (XRD) analyses showed that calcination resulted in the incorporation of metallic Zn, Fe and Cr in the framework of MCM-41, while in the case of Cu, thin layers of CuO were formed on the surface of MCM-41. The solids obtained were tested in the catalytic wet peroxide oxidation (CWPO) of acetaminophen at different temperatures (25–55 °C). The activity followed the order: Cr/MCM-41 ≥ Fe/MCM-41 > Cu/MCM-41 > Zn/MCM-41. The increase of the reaction temperature improved the performance and activity of Cr/MCM-41 and Fe/MCM-41 catalysts, which achieved complete conversion of acetaminophen in short reaction times (15 min in the case of Cr/MCM-41). Fe/MCM-41 and Cr/MCM-41 were submitted to long-term experiments, being the Fe/MCM-41 catalyst the most stable with a very low metal leaching. The leaching results were better than those previously reported in the literature, confirming the high stability of Fe/MCM-41 catalysts synthesized in this study.

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Section: Or Peermentioning

confidence: 99%

Section: Or Peermentioning

confidence: 99%

Section: Or Peermentioning

confidence: 99%

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Metal-Loaded Mesoporous MCM-41 for the Catalytic Wet Peroxide Oxidation (CWPO) of Acetaminophen

et al. 2021

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“…Semiconductors have been taken as effective photocatalytic and electrochemical sensors for direct detection of paracetamol [ 10 , 11 , 12 , 13 ]. Therein, transition metal oxide BiVO 4 , with an excellent charge transport property (hole diffusion length L p = 70 nm) [ 14 , 15 ], has emerged as a highly promising electrocatalytic material with good chemical stability, environmental inertness, and low cost [ 16 , 17 ]. Medeiros et al reported that BiVO 4 nanoparticles could be used as a highly efficient and sensitive photoelectrochemical sensor for paracetamol detection [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Morphology Effect of Bismuth Vanadate on Electrochemical Sensing for the Detection of Paracetamol

Liu

et al. 2022

Nanomaterials

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Morphology-control, as a promising and effective strategy, is widely implemented to change surface atomic active sites and thus enhance the intrinsic electrocatalytic activity and selectivity. As a typical n-type semiconductor, a series of bismuth vanadate samples with tunable morphologies of clavate, fusiform, flowered, bulky, and nanoparticles were prepared to investigate the morphology effect. Among all the synthesized samples, the clavate shaped BiVO4 with high index facets of (112), (301), and (200) exhibited reduced extrinsic pseudocapacitance and enhanced redox response, which is beneficial for tackling the sluggish voltammetric response of the traditional nanoparticle on the electrode surface. Benefiting from the large surface-active area and favorable ion diffusion channels, the clavate shaped BiVO4 exhibited the best electrochemical sensing performance for paracetamol with a linear response in the range of 0.5–100 µmol and a low detection limit of 0.2 µmol. The enhanced electrochemical detection of paracetamol by bismuth vanadate nanomaterials with controllable shapes indicates their potential for applications as electrochemical sensors.

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“…Electro-Fenton (EF) and anodic oxidation (AO) are promising water treatment processes under the class of electrochemical advanced oxidation processes (EAOPs) [11][12][13][14][15]. AO can be carried out, via water oxidation, on active or non-active anode of high overvoltage for oxygen evolution reaction, (Equation ( 1)) [14].…”

Section: Introductionmentioning

confidence: 99%

Combined Electro-Fenton and Anodic Oxidation Processes at a Sub-Stoichiometric Titanium Oxide (Ti4O7) Ceramic Electrode for the Degradation of Tetracycline in Water

Zwane

Orimolade

Koiki

et al. 2021

Water

Self Cite

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The mineralization of tetracycline by electrochemical advanced oxidation processes (EAOPs) as well as the study of the toxicity of its intermediates and degradation products are presented. Electro-Fenton (EF), anodic oxidation (AO), and electro-Fenton coupled with anodic oxidation (EF/AO) were used to degrade tetracycline on carbon felt (cathode) and a sub-stoichiometric titanium oxide (Ti4O7) layer deposited on Ti (anode). As compared to EF and AO, the coupled EF/AO system resulted in the highest pollutant removal efficiencies: total organic carbon removal was 69 ± 1% and 68 ± 1%, at 20 ppm and 50 ppm of initial concentration of tetracycline, respectively. The effect of electrolysis current on removal efficiency, mineralization current efficiency, energy consumption, and solution toxicity of tetracycline mineralization were investigated for 20 ppm and 50 ppm tetracycline. The EF/AO process using a Ti4O7 anode and CF cathode provides low energy and high removal efficiency of tetracycline caused by the production of hydroxyl radicals both at the surface of the non-active Ti4O7 electrode and in solution by the electro-Fenton process at the cathodic carbon felt. Complete removal of tetracycline was observed from HPLC data after 30 min at optimized conditions of 120 mA and 210 mA for 20 ppm and 50 ppm tetracycline concentrations. Degradation products were elucidated, and the toxicity of the products were measured with luminescence using Microtox® bacteria toxicity test.

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

Cited by 72 publications

References 56 publications

Metal-Loaded Mesoporous MCM-41 for the Catalytic Wet Peroxide Oxidation (CWPO) of Acetaminophen

Metal-Loaded Mesoporous MCM-41 for the Catalytic Wet Peroxide Oxidation (CWPO) of Acetaminophen

Morphology Effect of Bismuth Vanadate on Electrochemical Sensing for the Detection of Paracetamol

Combined Electro-Fenton and Anodic Oxidation Processes at a Sub-Stoichiometric Titanium Oxide (Ti4O7) Ceramic Electrode for the Degradation of Tetracycline in Water

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