Titanium dioxide (TiO2) colloidal suspensions applied by spray-coating have been used to deposit transparent self-cleaning coatings on stones with the aim of preserving the original aesthetic features of historical and monumental architectures. Travertine was chosen as the reference substrate. Compatibility with travertine and self-cleaning efficiency were analysed by indoor laboratory tests. The self-cleaning ability of TiO2 is mostly dependant on the photocatalysis generated by ultraviolet light. The stones were artificially aged through different procedures and the photo-activity of TiO2 was evaluated before and after the ageing. Results seem to encourage the use of nano-structured TiO2 for preserving stone during time.

Durability of nano-engineered TiO2 self-cleaning treatments on limestone / Placido, Munafò; Enrico, Quagliarini; Giovanni Battista, Goffredo; Bondioli, Federica; Antonio, Licciulli. - In: CONSTRUCTION AND BUILDING MATERIALS. - ISSN 0950-0618. - 65:(2014), pp. 218-231. [10.1016/j.conbuildmat.2014.04.112]

Durability of nano-engineered TiO2 self-cleaning treatments on limestone

BONDIOLI, Federica;
2014-01-01

Abstract

Titanium dioxide (TiO2) colloidal suspensions applied by spray-coating have been used to deposit transparent self-cleaning coatings on stones with the aim of preserving the original aesthetic features of historical and monumental architectures. Travertine was chosen as the reference substrate. Compatibility with travertine and self-cleaning efficiency were analysed by indoor laboratory tests. The self-cleaning ability of TiO2 is mostly dependant on the photocatalysis generated by ultraviolet light. The stones were artificially aged through different procedures and the photo-activity of TiO2 was evaluated before and after the ageing. Results seem to encourage the use of nano-structured TiO2 for preserving stone during time.
Durability of nano-engineered TiO2 self-cleaning treatments on limestone / Placido, Munafò; Enrico, Quagliarini; Giovanni Battista, Goffredo; Bondioli, Federica; Antonio, Licciulli. - In: CONSTRUCTION AND BUILDING MATERIALS. - ISSN 0950-0618. - 65:(2014), pp. 218-231. [10.1016/j.conbuildmat.2014.04.112]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2718100
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 73
  • ???jsp.display-item.citation.isi??? 65
social impact