Document Detail


The degradation of microcystin-LR using doped visible light absorbing photocatalysts.
MedLine Citation:
PMID:  20056264     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
Douglas Graham; Horst Kisch; Linda A Lawton; Peter K J Robertson
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Publication Detail:
Type:  Journal Article; Technical Report     Date:  2010-01-06
Journal Detail:
Title:  Chemosphere     Volume:  78     ISSN:  1879-1298     ISO Abbreviation:  Chemosphere     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-02-15     Completed Date:  2010-05-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0320657     Medline TA:  Chemosphere     Country:  England    
Other Details:
Languages:  eng     Pagination:  1182-5     Citation Subset:  IM    
Copyright Information:
Copyright (c) 2009 Elsevier Ltd. All rights reserved.
Affiliation:
Innovation, Design and Sustainability Research Institute (IDeaS), The Robert Gordon University, Schoolhill, Aberdeen, UK.
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MeSH Terms
Descriptor/Qualifier:
Animals
Catalysis
Environmental Remediation
Humans
Light*
Microcystins / chemistry*
Photochemical Processes
Titanium / chemistry
Chemical
Reg. No./Substance:
0/Microcystins; 101043-37-2/cyanoginosin LR; 13463-67-7/titanium dioxide; 7440-32-6/Titanium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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