Photocatalytic TiO2 coatings on limestone (Articolo in rivista)

Type
Label
  • Photocatalytic TiO2 coatings on limestone (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s10971-011-2574-9 (literal)
Alternative label
  • A. Licciulli, A. Calia, M. Lettieri, D. Diso, M. Masieri, S. Franza, R. Amadelli and G. Casarano (2011)
    Photocatalytic TiO2 coatings on limestone
    in Journal of sol-gel science and technology (Dordr., Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • A. Licciulli, A. Calia, M. Lettieri, D. Diso, M. Masieri, S. Franza, R. Amadelli and G. Casarano (literal)
Pagina inizio
  • 437 (literal)
Pagina fine
  • 444 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 60 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 3 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Licciulli: Dipartimento di Ingegneria dell'Innovazione, Università del Salento; Calia: CNR - Istituto per i Beni Archeologici e Monumentali; Lettieri: CNR - Istituto per i Beni Archeologici e Monumentali; Diso: Salentec srl, Cavallino (LE); Masieri: CNR - Istituto per i Beni Archeologici e Monumentali; Franza: Salentec srl, Cavallino (LE); Amadelli: ISOF - CNR; Casarano: Dipartimento di Ingegneria dell'Innovazione, Università del Salento. (literal)
Titolo
  • Photocatalytic TiO2 coatings on limestone (literal)
Abstract
  • The application of photocatalytic coatings on stone has been investigated for providing surface protection and self-cleaning properties. Sol-Gel and hydrothermal processes were used to synthesise TiO2 colloidal suspensions and coatings with enhanced photocatalytic activity without any thermal curing of the coated stone. The stone was a porous limestone (apulian sedimentary carbonatic, calcite stone). Films and powders prepared from TiO2 sols were studied using X-ray diffraction to evaluate the microstructure and identify rutile and anatase phases. A morphological and physical characterisation was carried out on coated and uncoated stone to establish the changes of appearance, colour, water absorption by capillarity and water vapour permeability. The photocatalytic activity of the coated surface was evaluated under UV irradiation through NOx and organics degradation tests. The performances of the synthesised TiO2 sols were compared with commercial TiO2 suspension. Since the coating doesn't need temperature treatments for activating the photocatalytic properties, the nano-crystalline hydrothermal TiO2 sols seem good candidate for coating applications on stone that cannot be annealed after the coating application. (literal)
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