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A study on the influence of gas mixtures on the property of plasma‐activated water
Author(s) -
Lai ChengChun,
Deng YongXin,
Liao YingHao
Publication year - 2020
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201900196
Subject(s) - hydrogen peroxide , nitrite , plasma , chemistry , argon , nitrate , hydrogen , analytical chemistry (journal) , materials science , environmental chemistry , organic chemistry , quantum mechanics , physics
The present study applying a plasma jet to activate water in a controllable environment is aimed to investigate the effect of a combination of (working/chamber gas) on the properties of plasma‐activated water. After 10 min of activation, results reveal that a significant decrease in solution pH is observed with the presence of N 2 . Hydrogen peroxide appears to be the major species for most gas mixtures, except [Ar + air/Ar] and [Ar + air/air], where nitrite and nitrate dominate. A gas mixture of [Ar + air/Ar] produces the maximum concentration ofN O 2 − , while the maximumN O 3 − and H 2 O 2 are observed for [Ar + air/air] and (Ar/Ar), respectively. Overall, the antibacterial efficacy correlates well withN O 2 − concentration.
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