Mechanism of the hydroxide ion initiated decomposition of ozone in aqueous solution

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Autoren

  • L. Forni
  • D. Bahnemann
  • Edwin J. Hart

Externe Organisationen

  • Helmholtz-Zentrum Berlin für Materialien und Energie GmbH
  • Brunel University
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)255-259
Seitenumfang5
FachzeitschriftJournal of Physical Chemistry
Jahrgang86
Ausgabenummer2
PublikationsstatusVeröffentlicht - 1982
Extern publiziertJa

Abstract

Stopped-flow experiments are reported on the OH -catalyzed chain decomposition of ozone in the pH range 11-13. O3-• has been identified as a product by its 430-nm absorption band. Acetate and carbonate ions inhibit this reaction. In the carbonate-inhibited reaction, the radical anion CO3-• has been identified by its 600-nm absorption band. In this case an apparent second-order rate constant of 115 ± 40 dm3 mol-1 s-1 has been obtained. Evidence is provided to support the reaction OH- + O3 → HO2- + O2 as the primary step. On this basis, k(OH- + O3) equals 48 ± 12 dm3 mol-1 s-1. Some aspects of the overall reaction are discussed.

ASJC Scopus Sachgebiete

Zitieren

Mechanism of the hydroxide ion initiated decomposition of ozone in aqueous solution. / Forni, L.; Bahnemann, D.; Hart, Edwin J.
in: Journal of Physical Chemistry, Jahrgang 86, Nr. 2, 1982, S. 255-259.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Forni, L, Bahnemann, D & Hart, EJ 1982, 'Mechanism of the hydroxide ion initiated decomposition of ozone in aqueous solution', Journal of Physical Chemistry, Jg. 86, Nr. 2, S. 255-259. https://doi.org/10.1021/j100391a025
Forni, L., Bahnemann, D., & Hart, E. J. (1982). Mechanism of the hydroxide ion initiated decomposition of ozone in aqueous solution. Journal of Physical Chemistry, 86(2), 255-259. https://doi.org/10.1021/j100391a025
Forni L, Bahnemann D, Hart EJ. Mechanism of the hydroxide ion initiated decomposition of ozone in aqueous solution. Journal of Physical Chemistry. 1982;86(2):255-259. doi: 10.1021/j100391a025
Forni, L. ; Bahnemann, D. ; Hart, Edwin J. / Mechanism of the hydroxide ion initiated decomposition of ozone in aqueous solution. in: Journal of Physical Chemistry. 1982 ; Jahrgang 86, Nr. 2. S. 255-259.
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T1 - Mechanism of the hydroxide ion initiated decomposition of ozone in aqueous solution

AU - Forni, L.

AU - Bahnemann, D.

AU - Hart, Edwin J.

N1 - Copyright: Copyright 2017 Elsevier B.V., All rights reserved.

PY - 1982

Y1 - 1982

N2 - Stopped-flow experiments are reported on the OH -catalyzed chain decomposition of ozone in the pH range 11-13. O3-• has been identified as a product by its 430-nm absorption band. Acetate and carbonate ions inhibit this reaction. In the carbonate-inhibited reaction, the radical anion CO3-• has been identified by its 600-nm absorption band. In this case an apparent second-order rate constant of 115 ± 40 dm3 mol-1 s-1 has been obtained. Evidence is provided to support the reaction OH- + O3 → HO2- + O2 as the primary step. On this basis, k(OH- + O3) equals 48 ± 12 dm3 mol-1 s-1. Some aspects of the overall reaction are discussed.

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