7. Conclusion

Photocatalysis offers a number of advantages for the degradation and, in the case of well-designed systems, the mineralization of pollutants in air or water. Photocatalysis is particularly suited to low flow rates and concentrations, and can be used in conjunction with other technologies. Photocatalytic surfaces are in full development, with self-cleaning glazing and materials (concretes, cements, ceramics, tiles, paints, varnishes...) with depolluting (abatement of NO _x , VOCs), disinfecting (destruction of micro-organisms), self-cleaning and anti-fogging properties.

Numerous challenges remain to improve the efficiency of photocatalytic materials. One of these concerns optimizing the efficiency and stability under visible radiation of doped titanium dioxide, which would enable better use of the solar spectrum or the...

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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...