SciELO - Scientific Electronic Library Online

 
vol.50 número1Analysis of BOP-F polymer by Neutron ActivationElectrochemical Behaviour of 1018, 304 and 800 Alloys in Synthetic Wastewater índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • No hay artículos similaresSimilares en SciELO

Compartir


Journal of the Mexican Chemical Society

versión impresa ISSN 1870-249X

Resumen

MEDINA-VALTIERRA, Jorge; SANCHEZ-CARDENAS, Manuel; FRAUSTO-REYES, Claudio  y  CALIXTO, Sergio. Formation of smooth and rough TiO2 thin films on fiberglass by sol-gel method. J. Mex. Chem. Soc [online]. 2006, vol.50, n.1, pp.8-13. ISSN 1870-249X.

Substrate dipping in a composite sol-gel solution was used to prepare smooth and rough thin films of TiO2 on fiberglass. The deposition of films was done using a solution of titanium (IV) isopropoxide as sol-gel precursor and cetyltrimethyl-ammonium bromide as surfactant. The samples were characterized using Raman and Uv-vis spectroscopy, scanning and atomic force microscopy. In some cases, films only consisted of the titanium precursor gel. A TiO2 61-nm film was obtained with a short immersion of fiberglass into the sol-gel without surfactant. In other cases, the deposited film consisted of a titanium precursor gel encapsulating micelles of surfactant. In each sample, gel film is converted only to the anatase phase by calcining it at 500 °C. It was found that the TiO2 film prepared from the sol-gel with surfactant shows a granular microstructure, and is composed of about 2 μm irregular particles. Smooth TiO2 films could have useful optical and corrosion-protective properties and by other hand, roughness on TiO2 films can enhance the inherent photocatalytic activity.

Palabras clave : Sol-gel deposition; fiber-glass; TiO2; thin films.

        · resumen en Español     · texto en Inglés     · Inglés ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons