Air purification using concrete products manufactured with special cement

Photocatalytically active construction products can support the air pollution control strategies in urban areas in the long term. In the production it is necessary to use titanium dioxides that are optimally adjusted to the cement.

Nitrogen oxides (NOX) are one of the most critical groups of air pollutants in the vicinity of major urban roads. One of the options to reduce the concentration of these pollutants in the air we breathe is to create photocatalytically active surfaces in appropriate locations. High-energy UV radiation triggers the formation of highly reactive compounds on the surface of such photocatalysts. These compounds have been shown to mineralize nitric oxide (NO) and nitrogen dioxide (NO2) present in the air, thus removing these substances from the air [1].

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