Despite the development of advanced technology (or because of its development) environmental pollution, including particularly dangerous
air pollutions, are really serious today. Photocatalytic air treatment has the potential for degradation of both, organic and inorganic
contaminants including particularly dangerous nitrogen oxides and volatile organic compounds from indoor as well as outdoor air.
Photocatalytic methods have a great advantage - do not lead to adsorption of pollutants but lead to degradation and mineralization of
organic and inorganic compounds. The attractiveness of photocatalysis results also from features such as ability of using cheap and
abundant sunlight as an energy source or mild conditions of process. This article briefly summaries the broad range of studies: from
modeling and photoreactor design, through laboratory experiment to large scale application within recent 5 years. Our goal was not only to
summarize a recent works but to demonstrate that the photocatalytic air cleaning is not a technology of a distant future, but is already
technology available today.
Key words: photocatalysis, semiconductor, air pollutants
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