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      The degradation of microcystin-LR using doped visible light absorbing photocatalysts

      , , ,
      Chemosphere
      Elsevier BV

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          Abstract

          Microcystins are one of the primary hepatotoxic cyanotoxins released from cyanobacteria. The presence of these compounds in water has resulted in the death of both humans and domestic and wild animals. Although microcystins are chemically stable titanium dioxide photocatalysis has proven to be an effective process for the removal of these compounds in water. One problem with this process is that it requires UV light and therefore in order to develop effective commercial reactor units that could be powered by solar light it is necessary to utilize a photocatalyst that is active with visible light. In this paper we report on the application of four visible light absorbing photocatalysts for the destruction of microcystin-LR in water. The rhodium doped material proved to be the most effective material followed by a carbon-modified titania. The commercially available materials were both relatively poor photocatalysts under visible radiation while the platinum doped catalyst also displayed a limited activity for toxin destruction. Copyright (c) 2009 Elsevier Ltd. All rights reserved.

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          Author and article information

          Journal
          Chemosphere
          Chemosphere
          Elsevier BV
          00456535
          February 2010
          February 2010
          : 78
          : 9
          : 1182-1185
          Article
          10.1016/j.chemosphere.2009.12.003
          20056264
          0870bc86-12bb-44df-8ec5-59ec0870fbed
          © 2010

          https://www.elsevier.com/tdm/userlicense/1.0/

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