A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Self-cleaning and de-polluting stone surfaces: TiO2 nanoparticles for limestone
Highlights ► Limestone is a building material largely used for urban architectural surfaces. ► A TiO2-nanoparticle coating was tested on it. ► Compatibility, self-cleaning and de-polluting effects were assessed. ► Results showed good compatibility with limestone surface. ► Evident photocatalytic efficiency was also demonstrated.
Abstract To evaluate the self-cleaning and de-polluting properties of a transparent titania coating, in this investigation a titanium dioxide based suspension was deposited by spray coating on travertine, a porous limestone largely used as building material. To assess compatibility with stone substrates, microstructure analysis, color and gloss measurements, static contact angle analysis and two different water absorption tests were carried out. Self-cleaning and de-polluting activities were assessed by the use of rhodamine B decoloration and NOx degradation tests. The results showed good compatibility with stone surfaces and evident efficiency, allowing the use of titania coatings for real outdoor applications.
Self-cleaning and de-polluting stone surfaces: TiO2 nanoparticles for limestone
Highlights ► Limestone is a building material largely used for urban architectural surfaces. ► A TiO2-nanoparticle coating was tested on it. ► Compatibility, self-cleaning and de-polluting effects were assessed. ► Results showed good compatibility with limestone surface. ► Evident photocatalytic efficiency was also demonstrated.
Abstract To evaluate the self-cleaning and de-polluting properties of a transparent titania coating, in this investigation a titanium dioxide based suspension was deposited by spray coating on travertine, a porous limestone largely used as building material. To assess compatibility with stone substrates, microstructure analysis, color and gloss measurements, static contact angle analysis and two different water absorption tests were carried out. Self-cleaning and de-polluting activities were assessed by the use of rhodamine B decoloration and NOx degradation tests. The results showed good compatibility with stone surfaces and evident efficiency, allowing the use of titania coatings for real outdoor applications.
Self-cleaning and de-polluting stone surfaces: TiO2 nanoparticles for limestone
Quagliarini, Enrico (author) / Bondioli, Federica (author) / Goffredo, Giovanni Battista (author) / Cordoni, Caterina (author) / Munafò, Placido (author)
Construction and Building Materials ; 37 ; 51-57
2012-07-13
7 pages
Article (Journal)
Electronic Resource
English
Self-cleaning and de-polluting stone surfaces: TiO2 nanoparticles for limestone
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Self-cleaning and de-polluting stone surfaces: TiO2 nanoparticles for limestone
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