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Chemical processes initiated by a nonequilibrium plasma in solutions

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Abstract

Oxidation of I-, Br∼, S2∼, Cr2+, and Mn2+ ions, as well as monochlorotriazine blue, in aqueous solutions was studied. The process was initiated by a steady-state discharge between a metal anode and an electrolyte solution. These reactions were found to be associated with active particles generated in both the gas-discharge plasma zone and the surface layer of the solution.

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Abbreviations

A = ξLC = ln(J/J 0):

optical density of a solution

C:

solute concentration, mol/1

I:

discharge current, mA

J o :

intensity of a light beam that enters the solution

J :

intensity of the light beam that leaves the solution

k :

bimolecular-reaction rate constant, mol-1 s-1

L :

solution layer thickness (light beam path in the solution), m

l:

distance between the anode and the solution surface acting as cathode, m

t :

time, s

U :

potential difference, V

W :

discharge power, W

/gx:

light wavelength, nm

X :

molar extinction coefficient of the solution, l/(mol m)

Τ:

plasma treatment time, s

Ω:

rate of active particle generation in the solution subjected to a gas discharge, mol/s

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Authors and Affiliations

  1. Institute of Chemistry of Solutions, Russian Academy of Sciences, Akademicheskaya ul. 1, 153000, Ivanovo, Russia

    A. M. Kutepov, A. G. Zakharov & A. I. Maksimov

Authors
  1. A. M. Kutepov
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  2. A. G. Zakharov
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  3. A. I. Maksimov
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Kutepov, A.M., Zakharov, A.G. & Maksimov, A.I. Chemical processes initiated by a nonequilibrium plasma in solutions. Theor Found Chem Eng 34, 70–75 (2000). https://doi.org/10.1007/BF02757467

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  • DOI: https://doi.org/10.1007/BF02757467

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