Semiconducting materials towards photocatalytic air treatment. Materials, tests and practical application.

Szymon Wojtyła, Tomasz Baran


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.

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