Abstract
TiO 2 coatings have high adhesion to the surface. Any surface applied with TiO 2 is easy to position for irradiation with light, in contrast to powders that need to be somehow placed and fixed on the surface. It has been proved that practically any organic compounds can be oxidized (mineralized) on the TiO 2 surface. In practice, any photocatalytic air purifier includes a porous carrier with TiO 2 deposited, which is irradiated with ultraviolet rays and through which the air is blown. Photocatalysis is suitable for household use, as it can occur at room temperature. For example, the thermocatalytic way of destroying harmful substances requires preheating of air to temperatures above 200 ° C. Photocatalysis destroys substances that penetrate even through activated carbon-based filters. Peculiarities of for mation of oxide coatings by plasma-electrolytic oxidation of titanium alloys are considered. Therefore, it is proposed to equip the design of collective defense systems on armored vehicles and stationary objects with the additional installation in a filter-sink of a network with a deposited layer of catalytic material that will neutralize various types of hazardous chemicals by photocatalytic purification of air by titanium oxides.
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Schedule a callMore From: Bulletin of the National Technical University "KhPI". Series: Innovation researches in students’ scientific work
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