5. Applications in self-cleaning materials

As early as the mid-1990s, the Japanese construction industry was looking into the potential use of photocatalytic materials to produce self-cleaning materials with aesthetic, pollution control and anti-fogging properties. It was only four years later that Europe initiated this type of research. In all cases, the photocatalyst used is titanium dioxide.

5.1 Principle of self-cleaning materials

Self-cleaning properties are based on two photo-induced properties: the first is the ability to oxidize organic soiling under the action of sunlight (photocatalytic reaction), and the second is due to photo-induced superhydrophilic properties that result in high surface wettability and enable inorganic or organic pollutants to be removed by water film formation....

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Bibliography

(1) - FUJISHIMA (A.), ZHANG (X.), TRYK (D.) - TiO ₂ photocatalysis and related phenomen. - Surf. Sc. Rep., 63, 515-582 (2008).
(2) - ISMAIL (A.), KANDIEL (T.), BAHNEMANN (D.) - Novel (and better?) titania-based...

Websites

KINGSLEY (M.), DAVIDSON (J.) - Gaseous indoor pollutants, http://www.me.umn.edu/courses/me5115/notes/ClassChemicals.pdf
MOSQUERON (L.), NEDELLEC (V.) - Inventaire des données françaises sur la qualité de l'air à l'intérieur des bâtiments, Observatoire de la qualité de l'air intérieur,...

Events

European Photocatalysis Days, JEP2009, Bordeaux,

http://www.photocatalysis-federation.eu/consult-the-archives.html

European Photocatalysis Days, JEP2011, Bordeaux,

http://www.photocatalysis-federation.eu/jep2011/

Standards and norms

AFNOR Test method for evaluating photocatalytic materials with respect to NOx degradation – Single-pass method in tangential mode AFNOR XP B44-011, December 2009

ISO: Test method for air purification- performance of semi-conducting materials- Part 1: removal of nitric oxide ISO/DIS 22197-2, 2007.

UNI: Determination of the catalytic degradation of nitrogen oxides in...

Regulations

Health and safety regulations: www.inrs.fr/inrs-pub/inrs01.nsf/IntranetObject-accesParReference/INRS-FR/$FILE/fset.html

Commission Directive 2009/161/EC of December 17, 2009 establishes a third list of 19 indicative occupational exposure limit values in application of Council Directive 98/24/EC and amending Directive 2000/39/EC. Member States have until December 18, 2011 to transpose this directive...