Comparison of ozone-based and other (VUV and TiO2/UV) radical generation methods in phenol decomposition

A. Dombi, I. Ilisz, Zsuzsanna László, G. Wittmann

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The degradation reaction kinetics and chemical mechanism of phenol decomposition by ozonation, TiO2-photocatalysis and vacuum ultraviolet (VUV) photolysis were investigated. The concentration dependences of the aromatic and aliphatic intermediates and the TOC content were compared as a function of the phenol conversion. The concentration profiles and the TOC curves obtained with each method were very similar. The results suggest a similar chemical mechanism for the transformation of phenol irrespective of the starting active component (a positive hole on the surface of the catalysts, a VUV photon, ozone or the hydroxyl radical).

Original languageEnglish
Pages (from-to)49-54
Number of pages6
JournalOzone: Science and Engineering
Volume24
Issue number1
Publication statusPublished - 2002

Fingerprint

Ozone
Phenol
Phenols
phenol
ozone
Vacuum
decomposition
Decomposition
Ozonization
Photocatalysis
Photolysis
reaction kinetics
hydroxyl radical
photolysis
Reaction kinetics
Hydroxyl Radical
Photons
catalyst
Degradation
degradation

Keywords

  • Advanced Oxidation Processes
  • Catechol
  • Dihydroquinone
  • Heterogeneous Photocatalysis
  • Oxalic Acid
  • Ozone
  • Phenol
  • Titanium Dioxide
  • Vacuum Ultraviolet Photolysis

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry

Cite this

Comparison of ozone-based and other (VUV and TiO2/UV) radical generation methods in phenol decomposition. / Dombi, A.; Ilisz, I.; László, Zsuzsanna; Wittmann, G.

In: Ozone: Science and Engineering, Vol. 24, No. 1, 2002, p. 49-54.

Research output: Contribution to journalArticle

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