Evaluation of dyes adsorption properties of TiO sub(2)-alginate biohybrid material

In this study a TiO sub(2)-alginate biohybrid material was obtained by the sol gel method and its adsorption properties were compared to those of its precursors using eosin B (anionic) as model dye. The results showed that the TiO sub(2) and biohybrid have a greater affinity for eosine B than algina...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2013-01, Vol.45, p.1-4
Main Authors: Zambrano, J A Barron, Morales, G Sanchez, Ortega, A Avila, Rodriguez, D Munoz, Figueiras, C Carrera
Format: Article
Language:English
Subjects:
Adsorption
Affinity
Dyes
Isotherms
Materials science
Precursors
Sol gel process
Titanium dioxide
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Summary:In this study a TiO sub(2)-alginate biohybrid material was obtained by the sol gel method and its adsorption properties were compared to those of its precursors using eosin B (anionic) as model dye. The results showed that the TiO sub(2) and biohybrid have a greater affinity for eosine B than alginate. The maximum adsorption capacity for the eosin B was obtained at pH = 10. Kinetic studies showed that the biohybrid has greater rate and adsorption capacity than its precursors. Kinetic data were fitted to a pseudo-second order kinetic model. The experimental isotherms were fitted to the Langmuir model.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/45/1/012021