Effects of pulse frequency of input power on the physical and chemical properties of pulsed streamer discharge plasmas in water

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F13%3A00421971" target="_blank" >RIV/61389021:_____/13:00421971 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1088/0022-3727/46/12/125202" target="_blank" >http://dx.doi.org/10.1088/0022-3727/46/12/125202</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0022-3727/46/12/125202" target="_blank" >10.1088/0022-3727/46/12/125202</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effects of pulse frequency of input power on the physical and chemical properties of pulsed streamer discharge plasmas in water

Popis výsledku v původním jazyce

Positive high-voltage pulses of 20 kV with repetition rates of up to 1 kHz were used to generate discharge in water using point-to-plane electrode geometry.By varying the pulse repetition rate, two distinct modes of discharge plasma were formed in water.The first was characterized by the formation of corona-like discharge propagating through the water in the form of streamer channels.The second mode was formed typically above 500 Hz, when the formation of streamer channels in water was suppressed and all plasma occurred inside a spheroidal aggregate of very fine gas bubbles surrounding the tip of the high-voltage electrode.The production of H2O2, degradation of organic dye Acid Orange 7, and inactivation of bacteria E. coli by the discharge were determined under different plasma modes in dependence with the pulse repetition rate.The efficiency of both chemical and biocidal processes induced by plasma in water decreased significantly using pulse repetition rates above 500 Hz.

Název v anglickém jazyce

Effects of pulse frequency of input power on the physical and chemical properties of pulsed streamer discharge plasmas in water

Popis výsledku anglicky

Positive high-voltage pulses of 20 kV with repetition rates of up to 1 kHz were used to generate discharge in water using point-to-plane electrode geometry.By varying the pulse repetition rate, two distinct modes of discharge plasma were formed in water.The first was characterized by the formation of corona-like discharge propagating through the water in the form of streamer channels.The second mode was formed typically above 500 Hz, when the formation of streamer channels in water was suppressed and all plasma occurred inside a spheroidal aggregate of very fine gas bubbles surrounding the tip of the high-voltage electrode.The production of H2O2, degradation of organic dye Acid Orange 7, and inactivation of bacteria E. coli by the discharge were determined under different plasma modes in dependence with the pulse repetition rate.The efficiency of both chemical and biocidal processes induced by plasma in water decreased significantly using pulse repetition rates above 500 Hz.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

<a href="/cs/project/GD104%2F09%2FH080" target="_blank" >GD104/09/H080: Plazmochemické procesy a jejich technologické aplikace</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Physics D-Applied Physics

ISSN

0022-3727

e-ISSN

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Svazek periodika

46

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

125202-125202

Kód UT WoS článku

000315413600016

EID výsledku v databázi Scopus

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