Abstract
Among the catalytic approaches to environmental remediation, that of heterogeneous photoassisted catalysis, known as ‘photocatalysis’, is the sole example involving utilization of light along with a catalytic solid. This paper surveys the broad range of emerging potential applications for water (contaminant destruction and removal, metal deposition and recovery, sterilization and disinfection) then for air (purification, decontamination, deodorization, bioaerosol removal, self-cleaning surfaces) and presents approaches to increase the efficiency of light and catalyst utilization via periodic illumination and oxidant (ozone, peroxide) addition. Purification photocatalytique et assainissement de l'air et de l'eau contaminées. Parmi les approches catalytiques visant à assainir l'environnement, la catalyse hétérogène photoassistée, connue sous le nom de « photocatalyse », constitue l'unique exemple d'utilisation combinée de la lumière et d'un catalyseur solide. Cet article brosse un panorama du large éventail d'applications potentielles émergentes pour l'eau (destruction et extraction des contaminants, déposition et récupération des métaux, stérilisation et désinfection), puis pour l'air (purification, décontamination, désodorisation, extraction des bioaérosols, surfaces autonettoyantes) ; il présente enfin des approches visant à accroı̂tre l'efficacité de l'utilisation de la lumière et du catalyseur à travers l'illumination périodique et l'addition d'oxydants (ozone, peroxyde).
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More From: Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry
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