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A platform for research: civil engineering, architecture and urbanism
Photocatalytic and self-cleaning activity of colored mortars containing TiO2
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Highlights The photoactivity of mortars containing TiO2 and iron oxide pigments was studied. Atmospheric exposure tests and photocatalytic degradation tests were performed. Iron oxide pigments caused lower photocatalytic activity compared to white mortars. Soiling in atmospheric exposure was lower on TiO2 containing mortars (self-cleaning). Colored mortars require the definition of a new protocol for dye degradation tests.
Abstract In previous works, commercial mortars containing anatase phase titanium dioxide were proved to show photoactivated properties under UV light irradiation. These materials allowed both to degrade polluting compounds at the materials surface and to decrease maintenance costs thanks to their self-cleaning properties. In this work, the possible interaction between TiO2 and pigments, which are commonly added to the mixture in the production of colored mortars, was investigated, with particular reference to synergetic or detrimental effects of this interaction on the photoactivated properties of the studied materials.
Photocatalytic and self-cleaning activity of colored mortars containing TiO2
Graphical abstract Display Omitted
Highlights The photoactivity of mortars containing TiO2 and iron oxide pigments was studied. Atmospheric exposure tests and photocatalytic degradation tests were performed. Iron oxide pigments caused lower photocatalytic activity compared to white mortars. Soiling in atmospheric exposure was lower on TiO2 containing mortars (self-cleaning). Colored mortars require the definition of a new protocol for dye degradation tests.
Abstract In previous works, commercial mortars containing anatase phase titanium dioxide were proved to show photoactivated properties under UV light irradiation. These materials allowed both to degrade polluting compounds at the materials surface and to decrease maintenance costs thanks to their self-cleaning properties. In this work, the possible interaction between TiO2 and pigments, which are commonly added to the mixture in the production of colored mortars, was investigated, with particular reference to synergetic or detrimental effects of this interaction on the photoactivated properties of the studied materials.
Photocatalytic and self-cleaning activity of colored mortars containing TiO2
Diamanti, M.V. (author) / Del Curto, B. (author) / Ormellese, M. (author) / Pedeferri, M.P. (author)
Construction and Building Materials ; 46 ; 167-174
2013-04-21
8 pages
Article (Journal)
Electronic Resource
English
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