Open AccessNovel photocatalytic coating on façade paints: Functional properties and durability
Author(s) -
Tatjana Vulić,
Snežana Vučetić,
Bojan Miljević,
G Jonjaua Ranogajec
Publication year - 2018
Publication title -
acta periodica technologica/acta periodica technologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.134
H-Index - 15
eISSN - 2406-095X
pISSN - 1450-7188
DOI - 10.2298/apt1849181v
Subject(s) - photocatalysis , coating , durability , materials science , layered double hydroxides , nanocomposite , composite material , relative humidity , adhesion , indentation hardness , chemical engineering , microstructure , chemistry , catalysis , biochemistry , physics , engineering , thermodynamics , hydroxide
The negative influence of the environmental pollutants on building materials used for fa?ades could be minimized by applying protective photocatalytic coatings with selfcleaning properties. Novel inorganic-inorganic nanocomposite photocatalytic coating based on TiO2/Zn-Al layered double hydroxides (LDHs) was applied on commercial fa?ade paint and the functional properties (photocatalytic activity and surface properties) were studied before and after durability tests towards the adhesion of the coating. The results showed that the TiO2/ZnAl LDH based coating did not influence esthetic appearance, surface roughness and microhardness of the fa?ade paints. The coating demonstrated a significant photocatalytic activity and the photo-induced hydrophilicity, enabling the self-cleaning effect. The study of the influence of temperature and relative humidity on photocatalytic activity indicated that optimal weather conditions for the application of coating precursors onto the fa?ade paints are in the spring and in autumn seasons.