Effects of the pulse width and oxygen admixture on the production of reactive species in gas- and liquid-phases exposed by bipolar microsecond-pulsed atmospheric pressure helium plasma jets

2019 ◽  
Vol 26 (5) ◽  
pp. 053509 ◽  
Author(s):  
Hea Min Joh ◽  
Eun Jeong Baek ◽  
Sun Ja Kim ◽  
T. H. Chung
Keyword(s):  
Atmospheric Pressure ◽  
Pulse Width ◽  
Reactive Species ◽  
Plasma Jets ◽  
Helium Plasma ◽  
Liquid Phases

scholarly journals Tailoring the Chemistry of Plasma-Activated Water Using a DC-Pulse-Driven Non-Thermal Atmospheric-Pressure Helium Plasma Jet

Plasma ◽  
2019 ◽  
Vol 2 (2) ◽  
pp. 127-137 ◽  
Author(s):  
Oh ◽  
Szili ◽  
Hatta ◽  
Ito ◽  
Shirafuji
Keyword(s):  
Hydrogen Peroxide ◽  
Atmospheric Pressure ◽  
Pulse Width ◽  
Plasma Jet ◽  
Plasma Jets ◽  
Helium Plasma ◽  
Uv Absorption Spectroscopy ◽  
Pulse Polarity ◽  
Plasma Activated Water

We investigate the use of a DC-pulse-driven non-thermal atmospheric-pressure He plasma jet in the regulation of hydrogen peroxide (H2O2), nitrite (NO2−), nitrate (NO3−), and oxygen (O2) in deionized (DI) water. The production of these molecules is measured by in situ UV absorption spectroscopy of the plasma-activated water (PAW). Variations in the pulse polarity and pulse width have a significant influence on the resultant PAW chemistry. However, the trends in the concentrations of H2O2, NO2−, NO3−, and O2 are variable, pointing to the possibility that changes in the pulse polarity and pulse width might influence other plasma variables that also impact on the PAW chemistry. Overall, the results presented in this study highlight the possibility of using DC-pulse-driven plasma jets to tailor the chemistry of PAW, which opens new opportunities for the future development of optimal PAW formulations across diverse applications ranging from agriculture to medicine.

Effects of nitrogen impurity on the atmospheric pressure helium plasma jets exposed to a nitrogen environment

2020 ◽  
Vol 27 (10) ◽  
pp. 103511
Author(s):  
YuanYuan Jiang ◽  
Yanhui Wang ◽  
Shiyuan Cong ◽  
Jiao Zhang ◽  
Dezhen Wang
Keyword(s):  
Atmospheric Pressure ◽  
Plasma Jets ◽  
Helium Plasma ◽  
Nitrogen Impurity

Two-dimensional numerical study of two counter-propagating helium plasma jets in air at atmospheric pressure

2014 ◽  
Vol 21 (6) ◽  
pp. 063505 ◽  
Author(s):  
Wen Yan ◽  
Fucheng Liu ◽  
Chaofeng Sang ◽  
Dezhen Wang
Keyword(s):  
Atmospheric Pressure ◽  
Numerical Study ◽  
Plasma Jets ◽  
Helium Plasma ◽  
Two Dimensional

scholarly journals Influence of helium mole fraction distribution on the properties of cold atmospheric pressure helium plasma jets

2012 ◽  
Vol 112 (3) ◽  
pp. 033305 ◽  
Author(s):  
Ranhua Xiong ◽  
Qing Xiong ◽  
Anton Yu. Nikiforov ◽  
Patrick Vanraes ◽  
Christophe Leys
Keyword(s):  
Mole Fraction ◽  
Atmospheric Pressure ◽  
Plasma Jets ◽  
Helium Plasma ◽  
Fraction Distribution
Sign in / Sign up

Export Citation Format

Share Document