Determination of H2O2 by MnO2 modified screen printed carbon electrode during Fenton and visible light-assisted photo-Fenton based removal of acetamiprid from water

Zbiljić, Jasmina; Vajdle, Olga; Prlina, Biljana; Agbaba, Jasmina; Dalmacija, Božo; Kalcher, Kurt

doi:10.1016/j.jelechem.2015.07.027

Cited by 20 publications

(9 citation statements)

References 46 publications

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“…1b, curve 1. The small signals observed in the buffer solution can be attributed to the Mn(IV) / Mn(III), Mn(II) redox systems in their oxide states, as described previously [10,46]. As no peak current was observed at unmodified nanoSPCE, these results confirm the presence of Manganese species on the surface of the nanoSPCE.…”

Section: Resultssupporting

confidence: 85%

Voltammetric and microscopic characteristics of MnO2 and silica-MnO2hybrid films electrodeposited on the surface of planar electrodes

Kovalyk¹,

Tananaiko²,

Borets³

et al. 2019

Electrochimica Acta

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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Section: Resultssupporting

confidence: 85%

Voltammetric and microscopic characteristics of MnO2 and silica-MnO2hybrid films electrodeposited on the surface of planar electrodes

Kovalyk¹,

Tananaiko²,

Borets³

et al. 2019

Electrochimica Acta

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“…[59][60][61] Given the high oxidation potential of these radicals, 62 they can perform the total degradation of the organic matter (pollutants) to non-harmful molecules (CO2 and water). At the same time, MnO2 can also produce additional HO • radicals through the Fenton-like reaction in the presence of H2O2, 57,[63][64][65][66] resulting in an enhancement of the total oxidation of the organic pollutants.…”

Section: Resultsmentioning

confidence: 99%

Metal-Oxide-Based Microjets for the Simultaneous Removal of Organic Pollutants and Heavy Metals

Villa

Parmar

Vilela

et al. 2018

ACS Appl. Mater. Interfaces

110

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Water contamination from industrial and anthropogenic activities is nowadays a major issue in many countries worldwide. To address this problem, efficient water treatment technologies are required. Recent efforts have focused on the development of self-propelled micromotors that provide enhanced micromixing and mass transfer by the transportation of reactive species, resulting in higher decontamination rates. However, a real application of these micromotors is still limited due to the high cost associated to their fabrication process. Here, we present FeO-decorated SiO/MnO microjets for the simultaneous removal of industrial organic pollutants and heavy metals present in wastewater. These microjets were synthesized by low-cost and scalable methods. They exhibit an average speed of 485 ± 32 μm s (∼28 body length per s) at 7% HO, which is the highest reported for MnO-based tubular micromotors. Furthermore, the photocatalytic and adsorbent properties of the microjets enable the efficient degradation of organic pollutants, such as tetracycline and rhodamine B under visible light irradiation, as well as the removal of heavy metal ions, such as Cd and Pb.

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“…Zbiljić et al showed, that the removal of acetamiprid using photo-Fenton process is http://dx.doi.org/10.1016/j.cattod.2016.11.055 0920-5861/© 2016 Elsevier B.V. All rights reserved. twice as effective (∼10 min) as using Fenton processes only [9]. Imidacloprid transformation needed ∼60 min using both Fenton and photo-Fenton processes combined with hydrodynamic cavitation [10].…”

Section: Introductionmentioning

confidence: 99%

Transformation of Z-thiacloprid by three advanced oxidation processes: Kinetics, intermediates and the role of reactive species

et al. 2017

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Three advanced oxidation processes (AOPs), heterogeneous photocatalysis, vacuum ultraviolet (VUV) photolysis and ␥ radiolysis were used for the generation of reactive primary free radicals to induce the transformation of Z-thiacloprid in aqueous solution. The effects of dissolved oxygen and the initial concentration (from 10 −6 to 10 −4 mol L −1 ) were investigated. The initial reaction rates increased with the initial concentration of thiacloprid, both in oxygen saturated and oxygen free solutions. Dissolved oxygen had significant effect on the transformation rate only in case of heterogeneous photocatalysis. Three main intermediates and the E-thiachloprid were detected using all three methods. One of these intermediates could be related to the reaction with e aq − , while the other two could be related to the • OH-initiated reactions. Heterogeneous photocatalysis showed the highest efficiency regarding the transformation of intermediates in presence of dissolved oxygen, while thiacloprid transformed with the highest initial reaction rate during VUV photolysis. However, according to the Electric energy per order (E EO ) data ␥ radiolysis was found to be the economically most feasible method, requiring several orders of magnitude less energy than VUV photolysis and heterogeneous photocatalysis for reduction of the target compound concentration by one order of magnitude in a unit volume.

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Determination of H2O2 by MnO2 modified screen printed carbon electrode during Fenton and visible light-assisted photo-Fenton based removal of acetamiprid from water

Cited by 20 publications

References 46 publications

Voltammetric and microscopic characteristics of MnO2 and silica-MnO2hybrid films electrodeposited on the surface of planar electrodes

Voltammetric and microscopic characteristics of MnO2 and silica-MnO2hybrid films electrodeposited on the surface of planar electrodes

Metal-Oxide-Based Microjets for the Simultaneous Removal of Organic Pollutants and Heavy Metals

Transformation of Z-thiacloprid by three advanced oxidation processes: Kinetics, intermediates and the role of reactive species

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