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Study of photocatalytic oxidation of indigo carmine dye on Mn-supported TiO2

Paper ID Volume ID Publish Year Pages File Format Full-Text
29308 44147 2007 6 PDF Available
Title
Study of photocatalytic oxidation of indigo carmine dye on Mn-supported TiO2
Abstract

A detailed comparative investigation on the discoloration (adsorption) and mineralization (in the presence of UV irradiation) of indigo carmine (IC) dye over four photocatalysts TiO2-D (from Degussa), TiO2-SG (prepared with a sol–gel method), Mn/TiO2-imp (prepared with an impregnation method) and Mn/TiO2-SG (prepared with a sol–gel method) is presented. The experimental results show that Mn/TiO2-imp gives the highest photocatalytic activity. Whoever, the influence of pH, catalyst amount and time on the decolorization rate of IC on Mn/TiO2-imp was thoroughly discussed and correlated with ZPC of MnOx species, various exposed species of MnOx and surface properties. XRD, FT-IR and N2 adsorption measurements were used as characterization techniques over the calcined catalysts at 550 °C. Electric conductivity measurements by applying zeta potential technique provide an insight into the electric static situation of the particles at a given pH.

Keywords
Dye decolorization; Mn/TiO2; Titania; Manganese; Sol–gel texturing; XRD; N2 adsorption
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Study of photocatalytic oxidation of indigo carmine dye on Mn-supported TiO2
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 189, Issue 1, 10 June 2007, Pages 80–85
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
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Price was $35.95
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Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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