Nano Archive

Decolourization of reactive dyes by thin film immobilized surface photoreactor using solar irradiation

Damodar, Rahul A. and Jagannathan, K. and Swaminathan, T. (2007) Decolourization of reactive dyes by thin film immobilized surface photoreactor using solar irradiation. Solar Energy, 81 (1). pp. 1-7. ISSN 0038-092X

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Abstract

The photocatalytic degradation of four reactive dyes using TiO2 was investigated in suspended and immobilized systems under solar irradiation. Batch degradation experiments were carried out at initial concentrations ranging from 25 to 100 mg l−1 and at a catalyst loading of 0.5–1 g l−1. The studies on batch photocatalytic degradation of four dyes, showed about 30–70% colour removal depending on the initial dye concentration, dye structure (functional group and reactivity of dyes) and the amount of catalyst. The thin film immobilized surface photoreactor was able to give nearly 90–98% colour removal depending on the initial concentration and exposure time. Flow rate has noticeable effect on colour removal particularly at higher concentration (100 mg l−1). High colour removals obtained with solar radiation indicated effectiveness of this process and its potential for practical application.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:6505
Deposited By:JNCASR
Deposited On:30 Jul 2009 07:10
Last Modified:30 Jul 2009 07:10

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