Influence of Various Solid Catalysts on the Destruction Kinetics of Sodium Lauryl Sulfate in Aqueous Solutions by DBD

Bobkova, E. S.; Grinevich, V. I.; Ivantsova, N. A.; Рыбкин, В. В.

doi:10.1007/s11090-012-9373-0

Cited by 16 publications

(6 citation statements)

References 33 publications

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“…A promising technique is the application of various types of gaseous discharges, the so-called advanced oxidation technologies (AOT). To date, many devices have been tested for this purpose (e.g., corona discharge over solution surface [1], contact glow discharge electrolysis [2,3], pulsed streamer discharge in or above solution [4,5], dielectric barrier discharge [6,7] and gliding arc [8]). At the same time, the data on DC discharge at atmospheric pressure with a liquid cathode are rather limited in spite of the fact that such discharge is the simplest for technical realization.…”

Section: Introductionmentioning

confidence: 99%

Phenol decomposition in water cathode of DC atmospheric pressure discharge in air

Bobkova

Krasnov

Sungurova

et al. 2016

Korean J. Chem. Eng.

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We studied phenol decomposition in aqueous solution under the action of DC discharge at atmospheric pressure in air. The decomposition efficiency was 0.017 molecules per 100 eV. When the kinetics of forming destruction products was studied in detail, the peculiarities of air plasma action were revealed for the first time. Plasma action not only results in the formation of oxygen-containing products, which are usually formed under oxygen plasma action (hydroxyhenols, carboxylic acids, aldehydes), but also the formation of nitro phenols. The treatment is accompanied by hydrogen peroxide formation, a pH decrease, and nitric and nitrous acids formation. We also discussed the possible mechanism of the processes and the role of some active species in chemical transformations after determining some parameters of the discharge.

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Section: Introductionmentioning

confidence: 99%

Phenol decomposition in water cathode of DC atmospheric pressure discharge in air

Bobkova

Krasnov

Sungurova

et al. 2016

Korean J. Chem. Eng.

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“…Electric discharge in contact with water produces UV irradiation which originates from •OH transitions A 2 Σ + (v=0, 1)→X 2 Π(v=0) (287-309 nm) and N 2 (C-B) transitions (310-440 nm) [41]. Photocatalysts including NiO and Ag 2 O [16], TiO 2 powder/film [16,[42][43][44][45][46][47][48][49] are employed in plasma systems for enhancing the degradation of pollutants. Under UV-vis irradiation of appropriate wavelengths, the valence electrons of photocatalysts transit to the conduction band, leading to the production of oxidative holes (h + ) and reductive electrons.…”

Section: Plasma/catalyst Technologiesmentioning

confidence: 99%

“…Inserting at least one insulating dielectric between the high voltage electrode and the ground electrode produces the so-called DBD, and the insulating dielectric can efficiently restrain the instability of the streamer discharge and its transition to spark or arc breakdown, and covering a dielectric around electrodes helps to develop the electric field for ignition of electric discharges, so the treatment of high conductivity water often includes the use of DBD plasma. DBD plasma can be directly produced in contact with water [14][15][16][17] and is often also employed for the production of reactive species in the gas phase and then these species are injected into water for the degradation of aqueous pollutants [18,19].…”

Section: Introductionmentioning

confidence: 99%

Hybrid electric discharge plasma technologies for water decontamination: a short review

Shang

Morent

2019

Plasma Sci. Technol.

129

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Electric discharge plasma (EDP) can efficiently degrade aqueous pollutants by its in situ generated strong oxidative species (•OH, •O, H 2 O 2 , O 3 , etc) and other physiochemical effects (UV irradiation, shockwaves, local high temperature, etc), but a high energy consumptions limit the application of EDP in water treatment. Some adsorbents, catalysts, and oxidants have been employed for enhancing the degradation of pollutants by discharge plasma. These hybrid plasma technologies offer improved water treatment performance compared to discharge plasma alone. This paper reviews the water decontamination performance and mechanisms of these hybrid plasma technologies, and some suggestions on future water treatment technologies based on discharge plasma are also proposed.

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“…The degradation of this substance in air atmo spheric pressure dc discharge at a discharge current of 40 mA was investigated in [13]. Relevant data were also obtained for DBR in oxygen in [14], but only one value of the discharge power was used.…”

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confidence: 99%

Influence of parameters of oxygen atmospheric-pressure dielectric barrier discharge on the degradation kinetics of sulfonol in water

et al. 2015

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The kinetics of the degradation of Sulfonol and the formation of its degradation products by the action of oxygen atmospheric pressure dielectric barrier discharge on an aqueous solution at discharge pow ers of 0.4-4 W have been measured. It has been shown that the degradation products are carboxylic acids and aldehydes in the liquid phase and carbon dioxide in the gas phase. The energy efficiency of the degradation has been found to be (4.4-12.7) × 10 -3 molecule per 100 eV of input energy. Mechanisms for the processes have been proposed.

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Influence of Various Solid Catalysts on the Destruction Kinetics of Sodium Lauryl Sulfate in Aqueous Solutions by DBD

Cited by 16 publications

References 33 publications

Phenol decomposition in water cathode of DC atmospheric pressure discharge in air

Phenol decomposition in water cathode of DC atmospheric pressure discharge in air

Hybrid electric discharge plasma technologies for water decontamination: a short review

Influence of parameters of oxygen atmospheric-pressure dielectric barrier discharge on the degradation kinetics of sulfonol in water

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