An effective electrochemical destruction of non-ionic surfactants on bismuth-modified lead dioxide anodes for wastewater pretreatment

Kuznetsov, V. V.; Kapustin, Egor S.; Пирогов, А. В.; Kurdin, Kirill A.; Филатова, Е. В.; Kolesnikov, V.

doi:10.1007/s10008-019-04483-3

Cited by 7 publications

(3 citation statements)

References 44 publications

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“…It is clear from XRD spectrum that intensity of characteristics peaks declined and shifted by incline in the concentration of dopant bismuth, indicating the presence of Bi in the crystal lattice. Similar consequences of lead oxide pronounce variation with Bi incorporation are documented in literature [31] . Only the intensity of the peak was reduced by doping, which was confirmed by increasing the concentration of dopant crystal size.…”

Section: Resultssupporting

confidence: 86%

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Synthesis of Pure and Bi‐Doped Lead Oxides via Microwave‐Assisted Solvothermal Methodology and their Electrochemical Characterization

Danish,

Mehmood,

Sandhu

et al. 2024

ChemistrySelect

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In this study, we have reported the synthesis of both pure and bismuth‐doped lead oxide nanoparticles using solvothermal method. The synthesized nanomaterials were analyzed to assess their structure, crystallinity, phase, maximum absorption and band gap. The electrical characteristics of the fabricated nanostructures were evaluated using cyclic voltammetry (CV) and electron impedance spectroscopy (EIS). The maximum specific capacitance and energy density, 349.96 F/g and 95.27 Wh/g respectively, were attained at a scan rate of 200 mV/s in pure lead oxide. The synthesized pure lead oxide has displayed remarkable cyclic stability, retaining approximately 83 % of its performance even after undergoing 2000 cycles. The addition of bismuth to the lead oxide appeared to inhibit the electrochemical properties of lead oxide due to bismuth ion adsorption. This effect is directly concerned with the amount of dopant which predicted the increase in bismuth contents potentially suppressed the performance of the lead oxide. Our study provides insights into the possible uses of lead oxides in energy storage and conversion devices by revealing a previously unexplored method for optimizing their electrochemical characteristics. The understanding of oxide‐based materials in materials science and electrochemistry is expected to advance with the use of this novel technology.

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Section: Resultssupporting

confidence: 86%

“…Similar consequences of lead oxide pronounce variation with Bi incorporation are documented in literature. [31] Only the intensity of the peak was reduced by doping, which was confirmed by increasing the concentration of dopant crystal size. It is known that width of diffraction peak is inversely proportional to crystalline size.…”

Section: Xrd Analysismentioning

confidence: 81%

Synthesis of Pure and Bi‐Doped Lead Oxides via Microwave‐Assisted Solvothermal Methodology and their Electrochemical Characterization

Danish,

Mehmood,

Sandhu

et al. 2024

ChemistrySelect

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show abstract

“…Electrochemical treatment has recently been successfully applied to the degradation of paracetamol [36] and tetracycline [37] in aqueous solutions. The efficiency of electrooxidation for the decomposition of such difficult-to-oxidize compounds, such as nonionic surfactants based on ethers, was shown in [38]. The mechanism of electrooxidation is mainly divided into direct and indirect mechanisms [39].…”

Section: Introductionmentioning

confidence: 99%

Study of the Process of Electrochemical Oxidation of Active Pharmaceutical Substances on the Example of Nitrofurazone ((2E)-2-[(5-Nitro-2-furyl)methylene]hydrazine Carboxamide)

Kuznetsov,

Ivantsova,

Kuzin

et al. 2023

Water

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The effective mineralization of nitrofurazone (10–100 mg L−1) was performed in aqueous solutions in the presence of chloride ions by electrochemical treatment. The destruction of the organic pollutant molecules was due to their interaction with active oxygen- and chlorine-containing species forming at the inert anode (Pt/Ti or BDD) during electrolysis. Measurements of nitrofurazone concentration, chemical oxygen demand (COD) and total organic carbon (TOC) were used to estimate the removal efficiency of the pollutant. Both the pollutant oxidation rate and the degree of its mineralization were higher for the BDD anode due to the higher anode potentials on it in the course of electrolysis, which provides a high rate of active oxidizer species generation. As a result, practically full nitrofurazone molecule destruction (>99%) was achieved in 30 min at an anodic current density of 0.1 A cm−2, a volume current density of 1.33 A L−1 and pH 2 using BDD anodes. On the other hand, the nitrafurazone degradation efficiency was about 95% for Pt/Ti anodes under the same conditions. Additionally, byproducts of nitrofurazone electrooxidation were investigated by means of liquid chromato-mass-spectrometry (LC/MS). It was found that the initial decolorization of nitrofurazone solution, which occurs during the first 5 min of electrolysis, is due to the formation of a dichloro derivative of nitrofurazone, which causes the destruction of the π−conjugated bond system. Further electrolysis resulted in the almost complete destruction of the dichloro derivative within 30 min of electrochemical treatment.

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Parametric study on the electrochemical performance and stability of PbO2-coated titanium electrodes for electrowinning applications

2023

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An effective electrochemical destruction of non-ionic surfactants on bismuth-modified lead dioxide anodes for wastewater pretreatment

Cited by 7 publications

References 44 publications

Synthesis of Pure and Bi‐Doped Lead Oxides via Microwave‐Assisted Solvothermal Methodology and their Electrochemical Characterization

Synthesis of Pure and Bi‐Doped Lead Oxides via Microwave‐Assisted Solvothermal Methodology and their Electrochemical Characterization

Study of the Process of Electrochemical Oxidation of Active Pharmaceutical Substances on the Example of Nitrofurazone ((2E)-2-[(5-Nitro-2-furyl)methylene]hydrazine Carboxamide)

Parametric study on the electrochemical performance and stability of PbO2-coated titanium electrodes for electrowinning applications

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