Physicochemical mechanisms of plasma-liquid interactions within plasma channels in liquid

Franclemont, Joshua; Fan, Xiangru; Thagard, Selma Mededovic

doi:10.1088/0022-3727/48/42/424004

Cited by 20 publications

(10 citation statements)

References 13 publications

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“…Very different effective reaction rates or reaction efficiencies can be expected compared to gas phase discharges. For example, hydroxyl radicals ( • OH), with reaction rates that are basically diffusion controlled will react at the plasma-liquid interface or after penetration into the liquid by only a few micrometers [37]. Understanding the formation of reactive species and secondary chemical compounds by plasmas in liquids, including reactions rates, poses considerable challenges for diagnostic methods and the development of models.…”

Section: Direct Liquid Phase Plasmasmentioning

confidence: 99%

Plasma–liquid interactions: a review and roadmap

Bruggeman

Kushner

Locke

et al. 2016

Plasma Sources Sci. Technol.

1,221

885

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Plasma-liquid interactions represent a growing interdisciplinary area of research involving plasma science, fluid dynamics, heat and mass transfer, photolysis, multiphase chemistry and aerosol science. This review provides an assessment of the state-of-the-art of this multidisciplinary area and identifies the key research challenges. The developments in diagnostics, modeling and further extensions of cross section and reaction rate databases that are necessary to address these challenges are discussed. The review focusses on nonequilibrium plasmas.

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Section: Direct Liquid Phase Plasmasmentioning

confidence: 99%

Plasma–liquid interactions: a review and roadmap

Bruggeman

Kushner

Locke

et al. 2016

Plasma Sources Sci. Technol.

1,221

885

View full text Add to dashboard Cite

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“…The results show that H 2 O 2 production greatly depends on the experimental setup, and energy yields span almost three orders of magnitude (4 × 10 −2 -80 g kWh −1 ). Hydrogen peroxide concentrations up to several mmol l −1 were reported, depending on numerous factors, including the nature of the gas phase and aqueous phase, discharge polarity, etc [14,15,20,21]. In an underwater corona discharge a drastic reduction in the concentration of H 2 O 2 was reported in the presence of organic compounds [21,22].…”

Section: Formation Of Active Species In Plasmamentioning

confidence: 99%

Plasma processes for the treatment of water contaminated with harmful organic compounds

Măgureanu

Bradu

Pârvulescu

2018

J. Phys. D: Appl. Phys.

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The presence of organic contaminants in water raises considerable concern due to the negative impact on the environment, as well as to potential human exposure. In addition, scarcity of freshwater resources leads to serious consideration for water reuse by wastewater treatment. Non-thermal plasma treatment could address these problems by reducing water pollution. Highly reactive species generated in plasma in liquid or gas-liquid environment attack the pollutant molecules and degrade them. This paper reviews the literature results on the removal of pesticides in water by plasma treatment. The work is mainly focused on the attempts to improve the efficiency of the degradation process and on the mechanisms responsible for the degradation of pesticides belonging to various classes.

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“…At least one more phenomenon has to take place in this process to create these typical structures. We know that the chemistry at the interface is strongly changed with the formation of a lot of radicals and ions species strongly reactive [11][12] so it is possible that the reactions with the acids can be different and lead to those various structures. In order to confirm our hypothesis, we will soon observe the electrical discharges with a fast camera and compare their shapes with the foam strands.…”

Section: Effect Of the Acid Naturementioning

confidence: 99%

Ultra-low density metallic foams synthesized by contact glow discharge electrolysis (CGDE) for laser experiments

Rocher¹,

Botrel²,

Durut³

et al. 2018

Eur. Phys. J. Appl. Phys.

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Abstract. The goal of this work is to realize metallic foams synthesized by contact glow discharge electrolysis with specific characteristics. In this paper, we show the results of our studies, consisting in investigating parameters that influence the foams characteristics. Thus, the morphology of metallic foams is examined through scanning electron microscopy (SEM) observations with the acid nature. Moreover, the evolution of the mass and the volume of metallic foams with two experimental parameters (overvoltage and gold concentration) is also investigated. The acid nature affects the foams microscopic structure highlighted by the SEM observations, but for now no valid explanation to this behaviour was found. We prove that the mass deposited on the electrode is dependent on the ionic salt concentration, whereas the overvoltage only affects the foam overall density.

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Physicochemical mechanisms of plasma-liquid interactions within plasma channels in liquid

Cited by 20 publications

References 13 publications

Plasma–liquid interactions: a review and roadmap

Plasma–liquid interactions: a review and roadmap

Plasma processes for the treatment of water contaminated with harmful organic compounds

Ultra-low density metallic foams synthesized by contact glow discharge electrolysis (CGDE) for laser experiments

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