Photoelectrochemical degradation of 4-chlorocatechol at TiO2 electrodes: Comparison between sorption and photoreactivity

Janet M. Kesselman, Nathan S Lewis, Michael R. Hoffmann

Research output: Contribution to journalArticlepeer-review

104 Citations (Scopus)


The TiO2-catalyzed photodegradation of a strongly adsorbing substrate, 4-chlorocatechol, has been investigated as a function of solution concentration and pH at illuminated polycrystalline TiO2 electrodes operated at a constant current density. The results are compared to the previously determined sorption behavior of 4-chlorocatechol. The initial rates of 4- chlorocatechol photodegradation measured at pH 3, 5, and 8 and solution concentrations of 20, 50, and 200 μM show a linear correlation with the concentration of the sorbed substrate.

Original languageEnglish
Pages (from-to)2298-2302
Number of pages5
JournalEnvironmental Science and Technology
Issue number8
Publication statusPublished - Aug 1997

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry
  • Environmental Engineering

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