Journal
DYES AND PIGMENTS
Volume 72, Issue 3, Pages 353-356Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2005.09.016
Keywords
photocatalysis; titanium oxide; Coomassie Blue
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Coomassie Brilliant Blue dye was subjected to UV radiation in the presence of titanium oxide. The change in the color of the dye was monitored spectrophotometrically. The apparent rate of decolorization was calculated from the observed data and was found to fit the first order equation. The added amounts of Zn2+ ions caused a decrease in dye decoloration. A plausible explanation involving the radical initiated reaction is forwarded. Langmuir-Hinshelwood model was also used to describe the photocatalytic kinetics of the dye. (c) 2005 Elsevier Ltd. All rights reserved.
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