RT journal article
T1 Photocatalytic TiO2 nanosheets-SiO2 coatings on concrete and limestone: An enhancement of de-polluting and self-cleaning properties by nanoparticle design
A1 Luna Aguilera, Manuel Jesús
A1 Delgado Jaén, Juan José
A1 Romero Ocaña, Ismael
A1 Montini, T.
A1 Gil Montero, María Luisa Almoraima
A1 Martínez López, Francisco Javier
A1 Fornasiero, P.
A1 Mosquera Díaz, María Jesús
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
A2 Ciencias de la Tierra
A2 Química Física
K1 TiO2 nanosheets
K1 Self-cleaning nanomaterials
K1 Photocatalysis photocatalytic
K1 NOx abatement
K1 Photo-catalytic soot removal
AB In this study, we develop TiO2-SiO2 nanocomposites that can be employed as photoactive coatings to createsurfaces with antipollution and self-cleaning properties in urban buildings. In particular, anatase titanium dioxidewith a high percentage of {001} facets, commonly called titania nanosheet (TNS), was used as activephase. This approach allows us to improve the antipollution properties of similar sols based on P25. The obtainedTNS were intensively characterized by UV–Vis diffuse reflectance absorption, X-Ray diffraction and transmissionelectron microscopy to rationalize the sol synthesis and fully understand the photocatalytic performances. Ourresults clearly show that after treating the titania nanosheets with NaOH to remove adsorbed residual fluoridefrom the synthesis, they can be easily dispersed and the photocatalytic activity is dramatically improved. Thismaterial has been shown to effectively reduce concentrations of NOx, soot and organic dyes under simulated sunlight radiation.
PB SPRINGER
SN 0950-0618
YR 2022
FD 2022
LK http://hdl.handle.net/10498/26688
UL http://hdl.handle.net/10498/26688
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 11-nov-2026