Processes influencing the destruction of microcystin-LR by TiO2 photocatalysis.

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

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.

Citation

ROBERTSON, P.K.J., LAWTON, L.A., CORNISH, B.J.P.A. and JASPARS, M. 1998. Processes influencing the destruction of Microcystin-LR by TiO2 photocatalysis. Journal of photochemistry and photobiology A: chemistry [online], 116(3), pages 215-219. Available from: https://doi.org/10.1016/S1010-6030(98)00312-8

• Journal Article Type: Article
• Acceptance Date: Jul 30, 1998
• Online Publication Date: Jul 30, 1998
• Publication Date: Jul 30, 1998
• Deposit Date: Feb 27, 2007
• Publicly Available Date: Feb 27, 2007
• Journal: Journal of photochemistry and photobiology A: chemistry
• Print ISSN: 1010-6030
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 116
• Issue: 3
• Pages: 215-219
• DOI: https://doi.org/10.1016/S1010-6030%2898%2900312-8
• Keywords: MicrocystinLR; Photocatalysis; Solvent
• Public URL: http://hdl.handle.net/10059/51