Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Innovative Nano-TiO2 Particles for Self-cleaning Treatments of Historic Architecture and Sculptures
The study reports the results of a new treatment based on water and ethylene glycol nano-TiO2 dispersions showing photocatalytic properties that was tested on both Noto stone (calcarenite) and Carrara marble. To verify that the proposed treatments did not affect the intrinsic properties of the stone materials, colour measurement, static contact angle and water absorption by capillarity tests were carried out before and after the treatments. The efficacy of the photocatalytic activity of TiO2 nanoparticles applied to the stone substrates was evaluated by decomposition tests of organic colorants (Rhodamine B), both after indoor natural light exposition and after ageing in a Xenon lamp solar box. The specimens were also exposed to outdoors environment in order to verify their properties as self-cleaning agents to prevent soiling. The results showed that nano-TiO2 dispersions were effective and suitable for the use in the field of architectural heritage.
Innovative Nano-TiO2 Particles for Self-cleaning Treatments of Historic Architecture and Sculptures
The study reports the results of a new treatment based on water and ethylene glycol nano-TiO2 dispersions showing photocatalytic properties that was tested on both Noto stone (calcarenite) and Carrara marble. To verify that the proposed treatments did not affect the intrinsic properties of the stone materials, colour measurement, static contact angle and water absorption by capillarity tests were carried out before and after the treatments. The efficacy of the photocatalytic activity of TiO2 nanoparticles applied to the stone substrates was evaluated by decomposition tests of organic colorants (Rhodamine B), both after indoor natural light exposition and after ageing in a Xenon lamp solar box. The specimens were also exposed to outdoors environment in order to verify their properties as self-cleaning agents to prevent soiling. The results showed that nano-TiO2 dispersions were effective and suitable for the use in the field of architectural heritage.
Innovative Nano-TiO2 Particles for Self-cleaning Treatments of Historic Architecture and Sculptures
Gherardi, F. (Autor:in) / Colombo, A. (Autor:in) / Goidanich, S. (Autor:in) / Simonutti, R. (Autor:in) / Toniolo, L. (Autor:in)
Restoration of Buildings and Monuments ; 20 ; 423-432
01.12.2014
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Durability of nano-engineered TiO2 self-cleaning treatments on limestone
| Online Contents | 2014
The Work : Architecture, Urban Design, Drawings, and Sculptures
| UB Braunschweig | 2021
TiO2 nanocoatings for architectural heritage: Self-cleaning treatments on historical stone surfaces
| BASE | 2014
Durability of nano-engineered TiO"2 self-cleaning treatments on limestone
| British Library Online Contents | 2014