TITANIUM DIOXIDE

TITANIUM DIOXIDE

Titanium dioxide itself doesn't have toxicity to microbe and the cell. Only after the irradiation of light for instance fluorescent or UV light, normal mineral Ti02 activates its one of a kind photo catalytic properties. In the presence of light and humid inside air, titanium dioxide oxidizes, converts complex organic molecules into water and co2 fractional laser. Photo catalytic power of titanium dioxide productively destroys bacteria cell's wall and it is membrane, and reacts with cell's parts, which inhibits bacteria's activity and ultimately results in the death and decomposition of bacteria, thus eliminating bad odours created by a living or decomposing bacteria plus reduces risk of bacteria spread.

The increase in patents over the last decade indicates a huge curiosity, especially from Japan and Europe, in the application of Ti02 seeing that photocatalyst in buildmu materials
Regarding the reduction of air pollution on account of traffic in urban areas, the application on pavement surfaces or around the building surfaces in cementations supplies gives optimal solutions. To boost the efficiency of the photocatalyst, its presence at the surface of the material is crucial. It really needs to be accessible by sunlight to be activated. Consequently, the pollutant really needs to be absorbed on the surface and oxidized or reduced to some less harmful element. The goal is to have the maximum amount of TiC>2 as possible at the surface of the material, without the risk of loosing it by abrasion or maybe weathering. Up till now, by far the most efficient way to apply the TiC>2 is within a thin layer cementations substance, which is placed on the counter. Application in concrete tiles is actually therefore very suitable: the TiOa is usually added to the weathering coating. If the layer is somewhat used, new Ti02-particles will exist at the surface.

Other applications are located in architectural concrete. The use of white cement with TiCh at the surface of buildings and construction attribute to the durability of the visual area of the building. Due to the photocatalytic action, the whiteness of the building will remain and dirt will be washed away more easily due to hydrophilic properties or will be decomposed.