Physicochemical study of synthetic dyes adsorption on TiO2 thin films for dye sensitized solar cells

William Vallejo, Carlos Diaz-Uribe, Karen Navarro, Catalina Fajardo, Johann Hernandez, Carlos Arredondo

Resultado de la investigación: Contribución a una conferenciaPaper

1 Cita (Scopus)

Resumen

© 2015 IEEE. In this work we study equilibrium and kinetic adsorption process of Methylene Blue (MB) and Copper phthalocyanine (CuPhTh) dyes on TiO2 thin films. We synthesized phthalocyanines through Achar method; dyes were characterized by Fourier-Transform Infrared spectroscopy (FTIR) and Diffuse reflectance. TiO2 thin films were fabricated by Doctor Blade method for using Degussa P25 as TiO2 source. We used Langmuir and Freundlich adsorption models to describe adsorption equilibrium, and besides, we used Largergren model to describe kinetic adsorption process. Characterization results reveal typical signals of phthalocyaninaes, and besides, TiO2 thin films had a polycrystalline structure. Results indicated dyes adsorption to occur through chemisorption process and Langmuir adsorption model describes suitably dye adsorption process on TiO2 thin films.
Idioma originalInglés estadounidense
DOI
EstadoPublicada - 14 dic 2015
Evento2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015 -
Duración: 14 dic 2015 → …

Conferencia

Conferencia2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015
Período14/12/15 → …

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