In this work, TiO2-Ag-zeolite was supported on porous ceramic tiles to enhance the self-cleaning properties. The influence on adsorption and photocatalytic properties of the anchored composite with respect to a coating with only TiO2 has been evaluated. Functionalized tiles were obtained through a method that involves a solgel preparation followed by calcination at 550 °C for 2 h and different samples at different titanium and silver surface loads were prepared. The verification of the self-cleaning properties was conducted through adsorption and photocatalytic tests realized using aqueous solutions containing methylene blue (MB). Characterization results evidenced that the deposition method induced the formation of TiO2/Ag-zeolite layer, strongly adherent to the tile surface, in which TiO2 is present in anatase phase. The photocatalytic performances are strongly influenced by the amount of TiO2-Ag-zeolite composite deposited on the tile surface.

TiO2/zeolite composite on ceramic tiles: Influence of the amount of photocatalyst on adsorption and photocatalytic properties

Sarno, Giuseppe;VAIANO, VINCENZO;SANNINO, Diana
2016

Abstract

In this work, TiO2-Ag-zeolite was supported on porous ceramic tiles to enhance the self-cleaning properties. The influence on adsorption and photocatalytic properties of the anchored composite with respect to a coating with only TiO2 has been evaluated. Functionalized tiles were obtained through a method that involves a solgel preparation followed by calcination at 550 °C for 2 h and different samples at different titanium and silver surface loads were prepared. The verification of the self-cleaning properties was conducted through adsorption and photocatalytic tests realized using aqueous solutions containing methylene blue (MB). Characterization results evidenced that the deposition method induced the formation of TiO2/Ag-zeolite layer, strongly adherent to the tile surface, in which TiO2 is present in anatase phase. The photocatalytic performances are strongly influenced by the amount of TiO2-Ag-zeolite composite deposited on the tile surface.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11386/4682716
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