Stable Photocatalytic Paints Prepared from Hybrid Core-Shell Fluorinated/Acrylic/TiO2 Waterborne Dispersions
AbstractThe contamination of air and water is one of the major concerns towards the development of a sustainable world in the 21st century. In this context many efforts are devoted to the design of photocatalytic paints able to degrade chemical and biological impurities present in air and water. In this work, the photocatalytic activity of hybrid films formed from the blends of pure acrylic or core/shell fluorinated/acrylic waterborne dispersions and photocatalytic titanium dioxide (TiO2) nanoparticle dispersions was first assessed. The films show photocatalytic activity (inactivation of the Escherichia coli bacteria under UV irradiation) at the substrate-film interface, but very reduced activity in the air-film interface due to the substantially lower amount of the TiO2 nanoparticles in the vicinity of this interface. In a second step, the fluorinated/(meth)acrylic core-shell hybrid dispersions were used as binders in the formulation of waterborne photocatalytic paints and the stability of the paints, in terms of gloss retain and color change, was assessed during 5000 hours of accelerated weathering tests (QUV-B). Although a decrease in gloss retention and increased color change occurs during the first 1000 hours of exposure, no further change of these properties takes place, which is an excellent indication of stable photocatalytic paints. View Full-Text
- Supplementary File 1:
Supplementary (PDF, 1466 KB)
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Bonnefond, A.; González, E.; Asua, J.M.; Leiza, J.R.; Ieva, E.; Brinati, G.; Carella, S.; Marrani, A.; Veneroni, A.; Kiwi, J.; Pulgarin, C.; Rtimi, S. Stable Photocatalytic Paints Prepared from Hybrid Core-Shell Fluorinated/Acrylic/TiO2 Waterborne Dispersions. Crystals 2016, 6, 136.
Bonnefond A, González E, Asua JM, Leiza JR, Ieva E, Brinati G, Carella S, Marrani A, Veneroni A, Kiwi J, Pulgarin C, Rtimi S. Stable Photocatalytic Paints Prepared from Hybrid Core-Shell Fluorinated/Acrylic/TiO2 Waterborne Dispersions. Crystals. 2016; 6(10):136.Chicago/Turabian Style
Bonnefond, Audrey; González, Edurne; Asua, José M.; Leiza, Jose R.; Ieva, Eliana; Brinati, Giulio; Carella, Serena; Marrani, Alessio; Veneroni, Alessandro; Kiwi, John; Pulgarin, Cesar; Rtimi, Sami. 2016. "Stable Photocatalytic Paints Prepared from Hybrid Core-Shell Fluorinated/Acrylic/TiO2 Waterborne Dispersions." Crystals 6, no. 10: 136.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.