Spatial Mapping of OH Radicals Produced by Electric Discharge
in Hydrodynamic Cavitation Cloud

J 2025

Spatial Mapping of OH Radicals Produced by Electric Discharge in Hydrodynamic Cavitation Cloud

HORŇÁK, Radek; Jan ČECH; Pavel SŤAHEL; Lubomír PROKEŠ; David TRUNEC et al.

Základní údaje

Originální název

Spatial Mapping of OH Radicals Produced by Electric Discharge in Hydrodynamic Cavitation Cloud

Autoři

HORŇÁK, Radek; Jan ČECH ; Pavel SŤAHEL; Lubomír PROKEŠ; David TRUNEC; Pavel RUDOLF a Blahoslav MARŠÁLEK

Vydání

Journal of Physical Chemistry Letters, Washington DC, AMER CHEMICAL SOC, 2025, 1948-7185

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10305 Fluids and plasma physics

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 4.600 v roce 2024

Označené pro přenos do RIV

Ano

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

CHEMILUMINESCENCE-DETECTION;WATER

Štítky

14312030, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 8. 7. 2025 12:43, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

As strong oxidizers, OH radicals are crucial for water treatment applications involving plasma-liquid interactions. Hydrodynamic cavitation-based systems show promise for disinfection and micropollutant removal at flow rates of several m3/h. Knowledge of the spatial distribution of OH is limited. However, this is vital for enhancing system efficiency. This study maps the spatial distribution of OH generated by electric discharge in a hydrodynamic cavitation cloud. Using Luminol as a chemiluminescent probe, the study addresses challenges related to probe stability and luminescence lifetime in a dynamic cavitation environment. Luminescence decay time was assessed with a fast-frame camera, and spatial mapping was conducted by using an ICCD camera with an optical filter. Strong emission was observed at the collapsing end of the cavitation cloud and within the discharge channel, indicating the production and transport of OH into the liquid.

Návaznosti

GA22-11456S, projekt VaV

Název: Výzkum fundamentálních interakcí hydrodynamické kavitace a nízkoteplotního plazmatu ke zvýšení dezinfekčních účinků

Investor: Grantová agentura ČR, Výzkum fundamentálních interakcí hydrodynamické kavitace a nízkoteplotního plazmatu ke zvýšení dezinfekčních účinků

Citovat

HORŇÁK, Radek; Jan ČECH; Pavel SŤAHEL; Lubomír PROKEŠ; David TRUNEC; Pavel RUDOLF a Blahoslav MARŠÁLEK. Spatial Mapping of OH Radicals Produced by Electric Discharge in Hydrodynamic Cavitation Cloud. Journal of Physical Chemistry Letters. Washington DC: AMER CHEMICAL SOC, 2025, roč. 16, č. 25, s. 6279-6285. ISSN 1948-7185. Dostupné z: https://doi.org/10.1021/acs.jpclett.5c00979.

@article{2507598,
   author = {Horňák, Radek and Čech, Jan and Sťahel, Pavel and Prokeš, Lubomír and Trunec, David and Rudolf, Pavel and Maršálek, Blahoslav},
   article_location = {Washington DC},
   article_number = {25},
   doi = {https://doi.org/10.1021/acs.jpclett.5c00979},
   keywords = {CHEMILUMINESCENCE-DETECTION;WATER},
   language = {eng},
   issn = {1948-7185},
   journal = {Journal of Physical Chemistry Letters},
   title = {Spatial Mapping of OH Radicals Produced by Electric Discharge in Hydrodynamic Cavitation Cloud},
   url = {https://pubs.acs.org/doi/10.1021/acs.jpclett.5c00979},
   volume = {16},
   year = {2025}
}

TY  - JOUR
ID  - 2507598
AU  - Horňák, Radek - Čech, Jan - Sťahel, Pavel - Prokeš, Lubomír - Trunec, David - Rudolf, Pavel - Maršálek, Blahoslav
PY  - 2025
TI  - Spatial Mapping of OH Radicals Produced by Electric Discharge in Hydrodynamic Cavitation Cloud
JF  - Journal of Physical Chemistry Letters
VL  - 16
IS  - 25
SP  - 6279-6285
EP  - 6279-6285
PB  - AMER CHEMICAL SOC
SN  - 19487185
KW  - CHEMILUMINESCENCE-DETECTION;WATER
UR  - https://pubs.acs.org/doi/10.1021/acs.jpclett.5c00979
N2  - As strong oxidizers, OH radicals are crucial for water treatment applications involving plasma-liquid interactions. Hydrodynamic cavitation-based systems show promise for disinfection and micropollutant removal at flow rates of several m3/h. Knowledge of the spatial distribution of OH is limited. However, this is vital for enhancing system efficiency. This study maps the spatial distribution of OH generated by electric discharge in a hydrodynamic cavitation cloud. Using Luminol as a chemiluminescent probe, the study addresses challenges related to probe stability and luminescence lifetime in a dynamic cavitation environment. Luminescence decay time was assessed with a fast-frame camera, and spatial mapping was conducted by using an ICCD camera with an optical filter. Strong emission was observed at the collapsing end of the cavitation cloud and within the discharge channel, indicating the production and transport of OH into the liquid.
ER  -

HORŇÁK, Radek; Jan ČECH; Pavel SŤAHEL; Lubomír PROKEŠ; David TRUNEC; Pavel RUDOLF a Blahoslav MARŠÁLEK. Spatial Mapping of OH Radicals Produced by Electric Discharge in Hydrodynamic Cavitation Cloud. \textit{Journal of Physical Chemistry Letters}. Washington DC: AMER CHEMICAL SOC, 2025, roč.~16, č.~25, s.~6279-6285. ISSN~1948-7185. Dostupné z: https://doi.org/10.1021/acs.jpclett.5c00979.

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