{"title":"Reactive Oxygen and Nitrogen Species (RONS) Solubility Controlled Activation of Water by Atmospheric Pressure Air Spark Discharge","authors":"","doi":"10.1007/s11090-024-10453-z","DOIUrl":null,"url":null,"abstract":"<h3>Abstract</h3> <p>The activation of water by the atmospheric pressure air plasma is involved in the diffusion of reactive oxygen and nitrogen species (RONS) in air and water, their gas-phase and liquid-phase reactions, and their dissolution and evaporation. In this study, by generating the air spark discharge over the surface of water, we have evaluated the chemical and biological reactivities of direct–plasma treatment (DPT) and remote–plasma treatment (RPT) plasma-activated water (PAW) at different water temperatures. We have found that DPT-PAW is much more effective in increasing both the chemical and biological reactivities of PAW than RPT-PAW, and decreasing the water temperature from 40 to 6 °C leads to the rapid activation of water. Our analysis shows that when the water temperature varies from 6 to 40 °C, the activation of water by the air discharge is RONS solubility controlled, and the gas-phase and liquid-phase RONS diffusion and chemical reactions are not the controlling steps during the activation of water. The direct plasma treatment of water at a relatively low temperature contributes to an obvious increase in the RONS solubility, thus a rapid activation of DPT-PAW.</p>","PeriodicalId":734,"journal":{"name":"Plasma Chemistry and Plasma Processing","volume":null,"pages":null},"PeriodicalIF":2.6000,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plasma Chemistry and Plasma Processing","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s11090-024-10453-z","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The activation of water by the atmospheric pressure air plasma is involved in the diffusion of reactive oxygen and nitrogen species (RONS) in air and water, their gas-phase and liquid-phase reactions, and their dissolution and evaporation. In this study, by generating the air spark discharge over the surface of water, we have evaluated the chemical and biological reactivities of direct–plasma treatment (DPT) and remote–plasma treatment (RPT) plasma-activated water (PAW) at different water temperatures. We have found that DPT-PAW is much more effective in increasing both the chemical and biological reactivities of PAW than RPT-PAW, and decreasing the water temperature from 40 to 6 °C leads to the rapid activation of water. Our analysis shows that when the water temperature varies from 6 to 40 °C, the activation of water by the air discharge is RONS solubility controlled, and the gas-phase and liquid-phase RONS diffusion and chemical reactions are not the controlling steps during the activation of water. The direct plasma treatment of water at a relatively low temperature contributes to an obvious increase in the RONS solubility, thus a rapid activation of DPT-PAW.
期刊介绍：
Publishing original papers on fundamental and applied research in plasma chemistry and plasma processing, the scope of this journal includes processing plasmas ranging from non-thermal plasmas to thermal plasmas, and fundamental plasma studies as well as studies of specific plasma applications. Such applications include but are not limited to plasma catalysis, environmental processing including treatment of liquids and gases, biological applications of plasmas including plasma medicine and agriculture, surface modification and deposition, powder and nanostructure synthesis, energy applications including plasma combustion and reforming, resource recovery, coupling of plasmas and electrochemistry, and plasma etching. Studies of chemical kinetics in plasmas, and the interactions of plasmas with surfaces are also solicited. It is essential that submissions include substantial consideration of the role of the plasma, for example, the relevant plasma chemistry, plasma physics or plasma–surface interactions; manuscripts that consider solely the properties of materials or substances processed using a plasma are not within the journal’s scope.
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