Processes influencing the destruction of microcystin-LR by TiO2 photocatalysis

Peter K.J. Robertson*, Linda A. Lawton, Benjamin J.P.A. Cornish, Marcel Jaspars

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

We have previously reported the effectiveness of TiO2 photocatalysis in the destruction of the cyanotoxin microcystin-LR [P.K.J. Robertson, L.A. Lawton, B. Münch, J. Rouzade, J. Chem. Soc., Chem. Commun., 4 (1997) 393; P.K.J. Robertson, L.A. Lawton, B. Münch, B.J.P.A. Cornish, J. Adv. Oxid. Technol., in press]. In this paper we report an investigation of factors which influence the rate of the toxin destruction at the catalyst surface. A primary kinetic isotope effect of approximately 3 was observed when the destruction was performed in a heavy water solvent. Hydroxylated compounds were observed as products of the destruction process. No destruction was observed when the process was investigated under a nitrogen atmosphere.

Original languageEnglish
Pages (from-to)215-219
Number of pages5
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume116
Issue number3
DOIs
Publication statusPublished - 30 Jul 1998

Keywords

  • Microcystin-LR
  • Photocatalysis
  • Solvent

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