Frequently Asked Questions...
What is a Photocatalyst (photocatalysis, photocatalytic action)?
The word ‘photocatalysis’ is actually composed of two parts, “photo” and “catalysis”. ‘Photo’ is the Greek word for ‘light’ and ‘Catalysis’ is the process where a substance participates in modifying the rate of a chemical transformation of the reactants without being altered or consumed in the end. It is the acceleration of a photo-
Examples of the functions of a photocatalyst would be..
Anti Airborne Allergy, Improve IAQ, Remove; Ethylene, Formaldehyde, NOx, SOx etc
Removes Aldehyde, Ammonia, Chloroform, Diesel, Garbage, Mercapton, P-
Elimination of Moulds, Fungi Algal growth ,etc
Self clean function
Eliminates Oil residue, Soil, Rain stain, , Moss, Moulds, Soot etc,
Anti Bacterial, Virus, Germs
Removes Dye, Organic Chloride, Starch etc
What is Nanotechnology?
Nanotechnology is a rapidly growing science in the production and utilisation of
particles that measure in nanometers. The term 'nanoparticles' is generally used
to indicate particles with dimensions less than 100 nanometers. (1nm = 0.000000001m)
For comparison, a human hair is between 50,000 to 100,000nm in diameter, while a smoke particle is about 1,000nm in diameter
How safe is TiO2?
TiO2 is the most widely used white pigment because of its brightness and very high refractive index in which is not surpassed by many other materials.
Approximately 4 million tons of TiO2 are consumed worldwide annually.
It is used as a pigment to provide whiteness and opacity to products such as paints, coatings, plastics, papers, inks, foods, medicines (i.e. pills and tablets) as well as most toothpastes. TiO2 is also utilised to whiten skimmed milk; this has also been shown to increase the milk's palatability. You will also find it in food as E171
2 PCO application
No, it becomes a part of the structure/surface it is applied to and is totally invisible. There will be no staining if TiO2 is used and applied as recommended.
Our TiO2 Ultra-
Yes, our product contains the smallest sized TiO2 PCO particles possible to date and is therefore the most active PCO available on the market today.
Our TiO2 PCO contains valuable properties in its nanoscale size. As a micro crystal
TiO2 is a super-
How does the intensity of light affect the ability TiO2 to create friendly oxidisers that can purify the air?
As a characteristic of titanium dioxide, it starts to produce friendly oxidiser en mass when exposed to ultraviolet rays of 400nm range or lower. It is more affected by the intensity of the ultraviolet rays rather than the intensity of light itself per se. However, any air pollution, VOC, or odour that comes in contact with a surface treated with TiO2 liquid will become oxidised.
The pollutants in the air are repeatedly brought into contact with the treated surfaces
by natural air convection and movement. When the pollutants strike the treated surfaces
they are decomposed by TiO2. Others that are decomposed in the air include: nitrogen
oxide (NOx), formaldehyde, benzene and other Volatile Organic Compounds (VOCs). Decomposition
The surface applied the TiO2 decomposes organic pollutants in the water. The resulting decomposition products are innocuous amounts of compounds such as carbon dioxide, water and nitrates. This process is known as PhotoCatalytic Oxidisation (PCO).
What are some of the more popular applications for Nano TiO2 solution?
Bathrooms, floor tiles, sinks, showers, car interiors, to remove and prevent tobacco
odours, kitchen counters, furniture and carpets (especially if you have pets), curtains,
Can TiO2 be applied to carpets?
Yes, and with great results! Carpets treated with TiO2 will resist not only odours and grime but also pests such as fleas. Carpets will last much longer as well. For this reason, carpets and fabrics in trains and pubic transportation are now being treated with TiO2 in Japan with great results.
The odour substances in the air travel with the circulating airflow over the treated surfaces...they are then decomposed to odourless compounds.
As bacteria meet theTiO2 treated surface, it decomposes the cell wall of the bacteria...in this reaction the bacteria are killed and are totally decomposed.
Our PCO treatment is normally dry in 10 -
The durability depends mainly on the treatment of the coated surface and the surrounding conditions. The durability can vary between five and ten years, however, the photocatalytic effect is unlimited.
The TiO2 PCO treatment only works as a catalyst therefor it is not consumed in the
oxidation process -
The efficiency of a TiO2 PCO Ultra-
In the amorphous state the titanium dioxide is not crystalline and therefore much
The TiO2 PCO treatment decomposes: Ethylene, nitrogen oxide (NOx), formaldehyde, benzene and other volatile organic compounds (VOC’s). This includes troublesome odorous substances. These pollutants are decomposed to nontoxic compounds like minute amounts of carbon dioxide, water and nitrates.
Nano TiO2 PCO decomposes organic pollutants in water. Decomposition products are nontoxic compounds like carbon dioxide, water and nitrates. The process is known as PhotoCatalytic Oxidization (PCO). The process works in visible light but is better as the UV irradiation is more intensive. UV lamps can sometimes be used in conjunction for total optimisation in commercial situations
Scratches and small marks do not reduce the efficacy of the TiO2 PCO treatment. Usual
effects of the weather do not wear away the Ultra-
Yes! A DIY kit will be available from us shortly in 150 ml (sufficient for circa
Nevertheless the quality of the Treatment will not be as good as if applied professionally with our Electrostatic sprayer unit.
What other applications is TiO2 used for...
TiO2 on silica is used as a form of odour control in cat litter. This photocatalyst
is somewhat cheaper than silica beads per usage and effectively eliminates odour
for longer periods.
It is also incorporated as a photocatalyst in dental bleaching products. It allows for the use of decreased concentrations of hydrogen peroxide as the bleaching agent...thus claimed to achieve similar bleaching with fewer side effects.
In cosmetic and skin care products...TiO2 is used as a pigment, sunscreen and a thickener. It is also used as a tattoo pigment and in styptic pencils. TiO2 is produced in varying particle sizes, oil and water dispersible, and with varying coatings for the cosmetic industry. This pigment is used extensively in plastics and other applications for its UV resistant properties where it acts as a UV absorber, efficiently transforming destructive UV light energy into heat.
In ceramic glazes TiO2 acts as an opacifier and seeds crystal formation.
TiO2 is found in almost every sunscreen with a physical blocker because of its high refractive index, its strong UV light absorbing capabilities and its resistance to discolouration under ultraviolet light. This advantage enhances its stability and ability to protect the skin from ultraviolet light. Sunscreens designed for infants or people with sensitive skin are often based on titanium dioxide and/or zinc oxide, as these mineral UV blockers are believed to cause less skin irritation than chemical based UV absorber ingredients.