Sol-Gel Synthesis of SnO2-TiO2 System - Morphologic, Photocatalytic and Antibacterial Properties

Anzelms Zukuls; Gundars Mežinskis; Aigars Reinis; Ingus Skadins; Juta Kroica; Ramona Durena

doi:10.4028/www.scientific.net/KEM.762.273

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 762Sol-Gel Synthesis of SnO2-TiO2 System -...

Sol-Gel Synthesis of SnO₂-TiO₂ System - Morphologic, Photocatalytic and Antibacterial Properties

Abstract:

SnO₂-TiO₂ sol-gel coatings on soda-lime silicate glass heat treated at 500 °C and xerogel specimens also heat treated at 500 °C were investigated in this study. The morphology of 1, 3, 5 and 7 mol% SnO₂ doped titanium oxide coatings were evaluated with a scanning electron microscope (SEM), an atomic force microscope (AFM) and an UV-VIS light spectrophotometer, whilst xerogel structure was analysed with X-ray diffraction spectroscopy (XRD). The physicochemical properties of the TiO₂-SnO₂ systems depended mainly on the Sn-to-Ti ratio. The surface morphology of the layer was compact and homogeneous with no visible cracks. Anatase and rutile phase was found in the tested 1, 3, 5, 7 and 10 mol% SnO₂ doped and heat treated xerogel specimens. Rutile phase content in the heat treated xerogel was reduced, if Sn⁴⁺ content was increased. Photocatalytic activity and antibacterial properties were evaluated as well.

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Periodical:

Key Engineering Materials (Volume 762)

Pages:

273-277

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.762.273

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Online since:

February 2018

Authors:

Anzelms Zukuls*, Gundars Mežinskis, Aigars Reinis, Ingus Skadins, Juta Kroica, Ramona Durena

Keywords:

Photocatalytic, Sol-Gel, Thin Coating, TiO₂-SnO₂

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