Photocatalyst
Applications
.

1. Deodorizing Effect
On the deodorizing application, the hydroxyl radicals accelerate
the breakdown of any Volatile Organic Compounds or VOCs by destroying
the molecular bonds. This will help combine the organic gases to
form a single molecule that is not harmful to humans thus enhance
the air cleaning efficiency. Some of the examples of odor molecules
are: Tobacco odor, formaldehyde, nitrogen dioxide, urine
and fecal odor, gasoline, and many other hydro carbon molecules in the atmosphere.
Air purifier with Ti02 can
prevent smoke and soil, pollen, bacteria, virus and harmful
gas as well as seize the free bacteria in the
air by filtering percentage of 99.9% with the help of the highly
oxidizing effect of photocatalyst(Ti02).
2. Air Purifying Effect
The photocatalytic reactivity of titanium oxides can be applied
for the reduction or elimination of polluted compounds
in air such as NOx, cigarette smoke, as well as volatile compounds
arising
from various construction materials. Also, high photocatalytic
reactivity can be applied to protect lamp-houses and walls in tunneling,
as well as to prevent white tents from becoming sooty and dark.
Atmospheric constituents such as chlorofluorocarbons (CFCs) and
CFC substitutes, greenhouse gases, and nitrogenous and sulfurous
compounds undergo photochemical reactions either directly or indirectly
in the presence of sunlight. In a polluted area, these pollutants
can eventually be removed.
3. Anti fogging, Self-Cleaning
Most of the exterior walls of buildings become soiled from automotive
exhaust fumes, which contain oily components. When the original
building materials are coated with a photocatalyst, a protective
film of titanium provides the self-cleaning building by becoming
antistatic, super oxidative, and hydrophilic. The hydrocarbon
from automotive exhaust is oxidized and the dirt on the walls washes
away with rainfall, keeping the building exterior clean at all
times.

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