Mechanistic and toxicity studies of the photocatalytic oxidation of microcystin-LR.

Liu, Iain; Lawton, Linda A.; Cornish, Ben; Robertson, Peter K.J.

Abstract

Cyanobacterial toxins present in drinking water sources pose a considerable threat to human health. Conventional water treatment systems have proven unreliable for the removal of these toxins and hence new techniques have been investigated. Previous work has shown that TiO2 photocatalysis effectively destroys microcystin-LR in aqueous solutions, however, a variety of by-products were generated. In this paper, we report a mechanistic study of the photocatalytic destruction of microcystin-LR. In particular, the toxicity by-products of the process have been studied using both brine shrimp and protein phosphatase bioassays.

Citation

LIU, I., LAWTON, L.A., CORNISH, B. and ROBERTSON, P., 2002. Mechanistic and toxicity studies of the photocatalytic oxidation of microcystin-LR. Journal of photochemistry and photobiology A: chemistry [online], 148(1-3), pages 349-354. Available from: https://doi.org/10.1016/S1010-6030(02)00062-X

• Journal Article Type: Article
• Acceptance Date: May 31, 2002
• Online Publication Date: May 31, 2002
• Publication Date: May 31, 2002
• 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: 148
• Issue: 1-3
• Pages: 349-354
• DOI: https://doi.org/10.1016/S1010-6030%2802%2900062-X
• Keywords: Microcystins; Protein phosphatase 1; Photocatalytic oxidation; TiO2; Water treatment
• Public URL: http://hdl.handle.net/10059/50