Oxidative degradation of formic acid in aqueous solution upon dielectric-barrier discharge treatment

Grinevich, V. I.; Plastinina, Nina A.; Рыбкин, В. В.; Bubnov, A. G.

doi:10.1134/s001814390902012x

Cited by 7 publications

(5 citation statements)

References 8 publications

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“…In previous studies [42,43] devoted to plasma treatment of acetic and formic acids, it was shown that their decomposition resulted in the formation of appropriate aldehydes and carbon dioxide only, whereas carbon monoxide and dioxide were formed during formaldehyde plasma destruction [44]. Possible reaction pathways of the acids transformation into aldehydes are proposed in previous studies [42,43] as well. In our case, the formation of carboxylic acids and aldehydes was observed as well (Fig.…”

Section: Discussion About Probable Mechanism Of Phenol Decompositionmentioning

confidence: 93%

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: Discussion About Probable Mechanism Of Phenol Decompositionmentioning

confidence: 93%

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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“…This type of kinetic curve shows that the carboxylic acids formed during the destruction of THC are intermediate products, the decomposition of which leads to the formation of carbon oxides and aldehydes. It should be noted that similar regularities (the sequence of formation of acids, aldehydes, and CO 2 ) were observed during the decomposition of aqueous solutions of phenol, 19 carboxylic acids, 20,21 and 2,4-dichlorophenol. 16 Apparently, these kinetics are common for derivatives of aromatic compounds.…”

Section: W K Nmentioning

confidence: 52%

Reducing the Toxicity of Tetracycline Solutions and the Kinetics of Decomposition under the Action of DBD in Oxygen

et al. 2019

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The effects of a dielectric barrier discharge (DBD) in oxygen on the kinetics of the decomposition and of product formation of aqueous solutions of tetracycline (THC) were studied. The kinetics of THC decomposition obeyed the first kinetic order, and the degree of decomposition reached 90%. The rate constants and the energy efficiency of the decomposition process were determined. The decomposition products of THC were carboxylic acids, aldehydes, CO, and CO 2 . The toxic effect of water was determined by the survival rate of freshwater crustaceans Daphnia magna Straus and fish Poecillia reticulata Peters. Treatment with DBD led to a significant reduction in the toxicity of the solutions (by 94.8%).

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“…Also, in study [15] it was shown that under the action of oxygen DBD discharge on the solution of formic acid the formaldehyde and CO 2 were formed only. At the same time, a formaldehyde degradation in the same conditions resulted in the formation of carbon oxides only [16].…”

Section: Resultsmentioning

confidence: 97%

A Study of Sulfonol Decomposition in Water Solutions Under the Action of Dielectric Barrier Discharge in the Presence of Different Heterogeneous Catalysts

Bobkova

Grinevich

Ivantsova³

et al. 2011

Plasma Chem Plasma Process

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The decomposition kinetics of sulfonol (surfactant) in water solutions as well as the formation kinetics of decomposition products under the action of an oxygen dielectric barrier discharge (DBD) at atmospheric pressure in the presence or absence of TiO 2 , NiO and Ag 2 O catalysts in the plasma zone was studied. The DBD discharge was shown to have high decomposition efficiency (phenol-up to 98%, sulfonol-up to 80%). In a plasma-catalytic hybrid process, the efficiency of organic substances decomposition was higher than efficiency for the DBD treatment without catalyst. The catalysts application resulted in a change in the ratio and yield of decomposition products.

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Oxidative degradation of formic acid in aqueous solution upon dielectric-barrier discharge treatment

Cited by 7 publications

References 8 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

Reducing the Toxicity of Tetracycline Solutions and the Kinetics of Decomposition under the Action of DBD in Oxygen

A Study of Sulfonol Decomposition in Water Solutions Under the Action of Dielectric Barrier Discharge in the Presence of Different Heterogeneous Catalysts

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