Elettra-Sincrotrone Trieste S.C.p.A. website uses session cookies which are required for users to navigate appropriately and safely. Session cookies created by the Elettra-Sincrotrone Trieste S.C.p.A. website navigation do not affect users' privacy during their browsing experience on our website, as they do not entail processing their personal identification data. Session cookies are not permanently stored and indeed are cancelled when the connection to the Elettra-Sincrotrone Trieste S.C.p.A. website is terminated.
More info

SR-based Raman and neutron radiography techniques for the investigation of nanostructured coatings on stone surface

Nano-sized TiO2 is widely used as photocatalysts for many applications in cultural heritage conservation. In this research, we focused our attention on nanostructured product composed by silica, polydimethylsiloxane and TiO2 nanoparticles. 

We explored the effect of variable amounts of nanoparticles on the features of coating, since this issue still has some unclear aspects. Two large facilities have been involved in this study, in order to obtain accurate results in a non-invasive way. On one side, middle-UV Raman spectroscopy measurements at IUVS beamline@Elettra (Trieste), by using UV synchrotron radiation (SR) source, revealed successful, with respect to conventional set-up, in order to quantify the amount of the anatase on the surface. 

On the other side, neutron radiography measurements at RAD Radiography Station@BNC (Budapest) permitted a sensitive monitoring of the water absorption dynamics on untreated and treated samples.

Retrieve article

Construction and Building Materials, Vol. 166, pp. 464-471 (2018).

Ultima modifica il Giovedì, 30 Maggio 2019 12:06