[Not debasing physical and chemical performance of
ceramic]
Only the surface of tiles
is added one layer of photocatalytic coating. That doesn’t influence
any performance of tiles.
[Self-cleaning, sterilizing and purifying air]
It is no need to spend any expense to clean. It can ensure buildings beautiful,
protect environments and purify
air. [Directly utilizing solar energy]
As long
as there is sunshine, no need to invest any more.
[No toxin & no side effects]
In the light,
moving scope of free radical generated by photocatalytic coating
is shortened and its reaction time is rapid. Chemical performance
of photocatalytic coating is very stable. It is no harm and
no side effect to human body.
[Long efficient, stable and wearable]
High
efficient photocatalytic coating just makes functions of catalyzing.
Photocatalytic coating itself doesn’t take part in the
Oxidation-reduction and its catalyzing function keeps no change
permanently.
Functions of Photocatalytic
Tiles
Self-cleaning: Efficiently decomposing organic
substances and mineral adhered on the surface of tiles. That
can protect dirt such as dusts, etc. from closely adhering on
the surface of tiles. When winding or raining, the surface will
be self-cleaned to reach the effect of cleaning and anti-dirt.
Deodorizing: Through photo catalyzing of
nanometer granule, it can degrade or transfer organic and inorganic
compound, even microbe into innocuous and tasteless substances
to reach the effect of deodorization.
Sterilizing: The process of photo catalyzing
is the process of energy conversion. It is with energy release
and that makes the surface of tiles has the effect of sterilization.
Purifying air: Photo catalyzing can
efficiently lower the pollution of the air. It can degrade and purify very
well to make fresh air around buildings, especially to the thickness of
oxynitride and sulfide generated by tail gases of city cars. The purifying
capability of 1000m 2 photocatalytic
tiles is equal to the counterpart of 30stems aspens.
Elements of Photocatalytic
Tiles
In the sunlight, photocatalytic coating on the surface
of photocatalytic tiles is stimulated and
activated, which transfers solar energy into chemical energy.
Electron e is stimulated from VB of valence band to CB.
Its back falls a hole, h, which is the pair of electron
hole. (one kind of high energy particle) The “electron
hole” reacts with surrounding water and oxygen and
generates superoxide anion free radical O and hydroxyl free
radical OH. That makes it have great capability of Oxidation-reduction
at normal temperature. It can decompose aldehyde, benzene,
ester, sulfur dioxide and oxynitride in the air into innocuous
materials so as to reach the aim of purifying
air. After being shone by sunlight, photocatalytic
coating presents two kinds of characters. One is stronger
hydrophily and the other is super stronger oxidation potential.
If there is dirt or dust falling on the building, in fact
they are adhering on the water membrane on the surface of
tiles. When there is wind or rain, the dust and dirt will
be washed out.
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