Detail publikačního výsledku

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

HORNAK, R.; CECH, J.; ST'AHEL, P.; PROKES, L.; TRUNEC, D.; RUDOLF, P.; MARSALEK, B.

Originální název

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

Anglický název

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

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

CaviPlasma;hydrodynamic cavitation;plasma discharge;OH radicals

Klíčová slova v angličtině

CaviPlasma;hydrodynamic cavitation;plasma discharge;OH radicals

Autoři

HORNAK, R.; CECH, J.; ST'AHEL, P.; PROKES, L.; TRUNEC, D.; RUDOLF, P.; MARSALEK, B.

Vydáno

13.06.2025

Nakladatel

Amer Chemical Soc

Periodikum

Journal of Physical Chemistry Letters

Svazek

16

Číslo

25

Stát

Spojené státy americké

Strany od

6279

Strany do

6285

Strany počet

7

URL

https://pubs-acs-org.ezproxy.lib.vutbr.cz/doi/full/10.1021/acs.jpclett.5c00979

BibTex

@article{BUT201059,
  author="{} and  {} and  {} and  {} and  {} and Pavel {Rudolf} and  {}",
  title="Spatial Mapping of OH Radicals Produced by Electric Discharge in Hydrodynamic Cavitation Cloud",
  journal="Journal of Physical Chemistry Letters",
  year="2025",
  volume="16",
  number="25",
  pages="6279--6285",
  doi="10.1021/acs.jpclett.5c00979",
  issn="1948-7185",
  url="https://pubs-acs-org.ezproxy.lib.vutbr.cz/doi/full/10.1021/acs.jpclett.5c00979"
}