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

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

Authors

Peter K.J. Robertson

Benjamin J.P.A. Cornish

Marcel Jaspars



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

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