Prospects of using uv-leds for neutralization of harmful chemicals

The study of modern samples of weapons and military equipment of foreign countries and Ukraine included an analysis of collective protection systems for armored vehicles. The results of the study showed that existing filtration systems effectively protect against weapons of mass destruction. However, the issue of protection against hazardous chemicals remains open. A promising direction for solving this problem is the modernization of filters-absorbers of armored vehicles by using catalysts for neutralization of NHR, in particular oxide systems on titanium alloys under the influence of ultraviolet radiation. This approach will allow for the improvement of the operational characteristics of filter-ventilation systems without significant structural changes and substantial material costs by additionally installing a grid (mesh) with a layer of titanium oxide catalytic material in the filter absorber. Almost any organic substance can be oxidized (mineralized) to CO2 and H2O on the surface of TiO2. In modern photocatalytic air purifiers, low-pressure gas-discharge lamps that generate ultraviolet (UV) radiation in the range from 320 to 400 nm are widely used. These lamps are mounted inside the device, as a rule, along its central axis. The key element of such purifiers are porous media with a layer of photocatalyst applied, which is exposed to UV radiation. The air passing through these media is purified from contaminants. For the application of photocatalytic technologies for the purification of gaseous toxicants on military equipment and stationary facilities, it is proposed to use filter absorbers with a titanium mesh, on the surface of which a layer of titanium (IV) oxide (TiO2) is applied by electrochemical method. Work continues on using oxide catalysts on titanium alloys to improve the collective defense system for stationary structures and armored vehicles for effective neutralization of hazardous chemical substances.