Degradation of organic substances in aqueous solutions under the action of pulsed high-voltage discharges

Yakushin, Roman; Колесников, В. А.; Brodskii, V. A.; Ofitserov, E. N.; Chistolinov, A. V.

doi:10.1134/s1070427215080182

Cited by 4 publications

References 4 publications

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Photocatalytic sensor for chemical oxygen demand flow system using N-TiO₂/Ti electrode: determination of glucose and potassium hydrogen phthalate

Nurdin

Ritonga

Astria

et al. 2021

J. Phys.: Conf. Ser.

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The design of the Chemical Oxygen Demand (COD) flow system using TiO2/Ti and N-TiO2 /Ti electrodes has been carried out. TiO2/Ti electrodes were synthesized from the anodizing process followed by the sol-gel method as nitrogen doping (N) to obtain N-TiO2/Ti electrodes. The test results obtained that TiO2/Ti electrodes are only active in UV light and N-TiO2/Ti electrodes can be active in visible light. Determination of the COD value of the flow system for glucose and potassium hydrogen phthalate at various concentrations respectively of 5, 10, 20, and 30 ppm was carried out using the Multi Pulse Amperommetry (MPA) technique. The results of the COD sensor measurement of the flow system on the potassium hydrogen phthalate and glucose obtained light currents increase in proportion to the increase in concentration, which is also significantly proportional to the increase in COD value. The highest COD values for glucose and potassium hydrogen phthalate were at concentrations of 30 ppm respectively of 29.73 and 31.34 mg/L O2 using TiO2/Ti electrodes and for N-TiO2/Ti electrodes respectively 30.91 and 29.20 mg / L O2.

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Photocatalytic sensor for chemical oxygen demand flow system using N-TiO₂/Ti electrode: determination of glucose and potassium hydrogen phthalate

Nurdin

Ritonga

Astria

et al. 2021

J. Phys.: Conf. Ser.

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Study of the Influence of Nonequilibrium Dielectric-Barrier Discharge Plasma on the Valence State of Transition Metals in Aqueous Solutions

et al. 2018

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Research of Liquid Phase Oxidation of Aliphatic Alcohols in Plasma Chemical Water Treatment

et al. 2021

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Plasma chemistry is part of the development of high technology that meets the modern requirements of greening and resource conservation. The study of physic-chemical laws and processes occurring in the zone of action of electric discharge plasma near the surface of a liquid is of high scientific and applied interest. In the study, developed and patented by a team of authors, plasma-chemical reactors were used, which implement the treatment of a liquid with both barrier and glow discharges near the surface of the liquid phase in a flow-through mode. Solutions of primary and secondary aliphatic alcohols were used as a model object of plasma-chemical treatment. As a result of the study, the mechanisms of liquid-phase oxidation of primary and secondary aliphatic alcohols during plasma-chemical treatment of water were proposed. The emission spectra of electric discharges at the gas-liquid interface in the presence of dissolved organic substances were obtained and analyzed. Spectral studies of electrodischarge plasma in the liquid-liquid zone confirmed the differing composition of the inorganic oxidation products of primary and secondary aliphatic alcohols. When deciphering the spectra of barrier and glow discharges, the characteristic emission bands of nitrogen N2, OH-radicals and nitric oxide, as well as lines of atomic hydrogen H and oxygen O were shown. In addition, the effect of the nature of the organic substances contained in the treated water on the characteristics of the electric discharge plasma was shown

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Degradation of organic substances in aqueous solutions under the action of pulsed high-voltage discharges

Cited by 4 publications

References 4 publications

Photocatalytic sensor for chemical oxygen demand flow system using N-TiO₂/Ti electrode: determination of glucose and potassium hydrogen phthalate

Photocatalytic sensor for chemical oxygen demand flow system using N-TiO₂/Ti electrode: determination of glucose and potassium hydrogen phthalate

Study of the Influence of Nonequilibrium Dielectric-Barrier Discharge Plasma on the Valence State of Transition Metals in Aqueous Solutions

Research of Liquid Phase Oxidation of Aliphatic Alcohols in Plasma Chemical Water Treatment

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Degradation of organic substances in aqueous solutions under the action of pulsed high-voltage discharges

Cited by 4 publications

References 4 publications

Photocatalytic sensor for chemical oxygen demand flow system using N-TiO2/Ti electrode: determination of glucose and potassium hydrogen phthalate

Photocatalytic sensor for chemical oxygen demand flow system using N-TiO2/Ti electrode: determination of glucose and potassium hydrogen phthalate

Study of the Influence of Nonequilibrium Dielectric-Barrier Discharge Plasma on the Valence State of Transition Metals in Aqueous Solutions

Research of Liquid Phase Oxidation of Aliphatic Alcohols in Plasma Chemical Water Treatment

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Photocatalytic sensor for chemical oxygen demand flow system using N-TiO₂/Ti electrode: determination of glucose and potassium hydrogen phthalate

Photocatalytic sensor for chemical oxygen demand flow system using N-TiO₂/Ti electrode: determination of glucose and potassium hydrogen phthalate