TITANIUM DIOXIDE

TITANIUM DIOXIDE

Titanium dioxide itself doesn't have toxicity to microbe and this cell. Only after the irradiation of light including fluorescent or UV light, normal mineral Ti02 activates its unique photo catalytic properties. In the presence of light and humid from the air, titanium dioxide oxidizes, converts complex organic molecules into water and carbon dioxide. Photo catalytic power of titanium dioxide properly destroys bacteria cell's wall and it is membrane, and reacts with cell's ingredients, which inhibits bacteria's activity and ultimately ends up with the death and decomposition associated with bacteria, thus eliminating bad odours created by a living or decomposing bacteria plus reduces risk of bacteria spread.
The increase in patents throughout the last decade indicates a huge interest, especially from Japan and European countries, in the application of Ti02 as photocatalyst in buildmu materials
Regarding the reduction of air pollution because of traffic in urban areas, the approval on pavement surfaces or on the building surfaces in cementations supplies gives optimal solutions. To boost the efficiency of the photocatalyst, its presence at the top of material is crucial. It must be accessible by sunlight to be activated. Consequently, the pollutant must be absorbed on the surface and oxidized or reduced to your less harmful element. The goal is to have just as much TiC>2 as possible at the top of material, without the risk associated with loosing it by abrasion or maybe weathering. Up till now, one of the most efficient way to apply the TiC>2 is at a thin layer cementations product, which is placed on the counter. Application in concrete tiles is actually therefore very suitable: the TiOa is usually added to the weathering stratum. If the layer is slightly used, new Ti02-particles will be present at the surface. Other applications come in architectural concrete. The use of white cement with TiCh with the surface of buildings and construction attribute towards the durability of the visual part of the building. Due to this photocatalytic action, the whiteness of the building will continue and dirt will be washed away more easily due to hydrophilic properties or will be decomposed.