Principally, photocatalytic reactions commence by photoexciting the surface of photocatalyst with UV–Vis radiation, which can provide the appropriate band gap energy to generate photoactivated electron–hole pairs (R1). In parallel, ozone molecules can adsorb on the surface of the photocatalyst via three different interactions: physical adsorption, formation of weak hydrogen bonds with surface hydroxyl groups, and
molecular or dissociative adsorption into Lewis acid sites [35], each
interaction resulting in the production of active oxygen radicals
ð
OÞ (R2).
Principally, photocatalytic reactions commence by photoexciting the surface of photocatalyst with UV–Vis radiation, which can provide the appropriate band gap energy to generate photoactivated electron–hole pairs (R1). In parallel, ozone molecules can adsorb on the surface of the photocatalyst via three different interactions: physical adsorption, formation of weak hydrogen bonds with surface hydroxyl groups, andmolecular or dissociative adsorption into Lewis acid sites [35], eachinteraction resulting in the production of active oxygen radicalsðOÞ (R2).
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