Evaluation of dyes adsorption properties of TiO2-alginate biohybrid material

In this study a TiO2-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 TiO2 and biohybrid have a greater affinity for eosine B than alginate. The maxi...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 45; no. 1
Main Authors Barrón Zambrano, J A, G Sánchez Morales, A Ávila Ortega, D Muñoz Rodríguez, C Carrera Figueiras
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2013
Subjects
Adsorption
Alginates
Dyes
Precursors
Sol-gel processes
Titanium dioxide
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Summary:In this study a TiO2-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 TiO2 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