Civil Engineering Reference
In-Depth Information
15.2.2 Real-life examples of the use of outdoor
photocatalytic paints
Photocatalytic paints possess several properties, the most attractive of
which are the following:
•
photocatalysis of both inorganic and organic pollutants
•
self-cleaning of building materials, reducing the maintenance costs and
enabling a longer pristine view of the building
•
antimicrobial and antifungal properties, as photocatalytic paints avoid
bacterial and fungal growth on their surface
•
anti-fogging properties: the contact angle with water decreases to nearly
0° when the photocatalyst is irradiated, avoiding the formation of drop-
lets on the photocatalyst surface.
Some real-life examples of the applications of photocatalytic paints
include:
•
Music and Art City Hall (Chambery, France)
•
Via Porpora (Milan, Italy)
•
Umberto I tunnel (Rome, Italy) (Fig. 15.2)
•
Charles de Gaulle Airport (Paris, France)
•
Camden Council (London, UK)
•
Toyota Tsunami plant (Saitama, Japan)
A signifi cant reduction of both inorganic pollutants (NO, NO
2
, SO
2
) and
organic pollutants (benzene, toluene) in the surrounding outdoor air has
been observed as a result of the application of photocatalytic paint (Marolt
et al.
, 2011; Guerrini, 2012).
15.2
Umberto I tunnel in Rome.
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