Get OptimizedPhotocatalyst Sciences And Uses
Titanium Dioxide (TIO2)
Titanium dioxide, also known as titanium oxide or titania, is the naturally occurring oxide of titanium, chemical formula TiO 2. When used as a pigment, it is called titanium white, Pigment White 6, or CI 77891.
Photocatalysis Mechanism
When photocatalyst titanium dioxide (TiO2) absorbs Ultraviolet (UV)* radiation from sunlight or illuminated light source (fluorescent lamps), it will produce pairs of electrons and holes. The electron of the valence band of titanium dioxide becomes excited when illuminated by light. The excess energy of this excited electron promoted the electron to the conduction band of titanium dioxide therefore creating the negative-electron (e-) and positive-hole (h+) pair. This stage is referred as the semiconductor's 'photo-excitation' state. The energy difference between the valence band and the conduction band is known as the 'Band Gap'.
Photocatalytic Oxidation
Photo catalytic oxidation (PCO) is achieved when you combine UV light rays with a TiO2 coated filter. TiO2 refers to Titanium Oxide. This process creates hydroxyl radicals and super-oxide ions, which are highly reactive electrons.
These highly reactive electrons aggressively combine with other elements in the air, such as bacteria and VOCs. VOC is an acronym for Volatile Organic Compounds, which include harmful pollutants such as formaldehyde, ammonia and many other common contaminates released by building materials and household cleaners generally found in the home.
Once bound together, the chemical reaction takes place between the super-charged ion and the pollutant, effectively "oxidizing" (or burning) the pollutant. This breaks the pollutant down into harmless carbon dioxide and water molecules, making the air more purified.
Hydrophilicity
The word photocatalysis is a composite word which is composed of two parts, “photo” and “catalysis”. 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. This substance is known as the catalyst which increases the rate of a reaction by reducing the activation energy.
Generally speaking, photocatalysis is a reaction which uses light to activate a substance which modifies the rate of a chemical reaction without being involved itself. And the photocatalyst is the substance which can modify the rate of chemical reaction using light irradiation.
hydrophilic
Hydrophilic coatings exhibit water-loving characteristics. Chemically, this means they participate in dynamic hydrogen bonding with surrounding water. In most cases, hydrophilic coatings are also ionic and usually negatively charged, which further facilitates aqueous interactions. Physically, these chemical interactions with water give rise to hydrogel materials that may exhibit extremely low coefficients of friction. Taken together, such chemical and physical characteristics describe a class of materials that are wettable, lubricious, and suitable for tailored biological interactions. Superhydrophobic or super hydrophilic surface covering works very well for glass, fabrics, medical devices, catheters, plasma, anti rust and more. It is water resistant and can be sprayed to any object. Then just observe the nano-particles work for you. Other terms to look up are anatase, pigment and rutile.
Photocatalysis Reaction
Photo-Catalysis is defined as "acceleration by the presence of as catalyst". A catalyst does not change in itself
or being consumed in the chemical reaction. This definition includes photosensitization, a process by which a
photochemical alteration occurs in one molecular entity as a result of initial absorption of radiation by another
molecular entity called the photosensitized.
sio2
SiO2 liquid glass coatings are flexible and breathable and can be used on virtually everything. It can keep the glass of mobile phones shining and water resistant, and can increase the lifespan of food prep tables. It can guard vintage stone from environmental decay and protect sensitive medical devices from problem bacteria. Elevator systems can be left easy to clean and resistant to fingerprints, while the most delicate of silks can become super hydrophobic and stain resistant.
PCO Units for Sale
We are your wholesaler of PCO units and supplies for sale. You can use them in your own manufacturing or re-sell them down to your distribution chain. Contact us for pricing or visit our price breakdown page.
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Self Cleaning Coating Technology Uses:
Anti-bacterial/Hygienic
Photocatalyst does not only kill bacteria cells, but also decompose the cell itself. It cleanses both the air and surfaces around us. Microbes don't stand a chance. The titanium
dioxide photocatalyst has been found to be more effective than any other antibacterial agent,
because the photocatalytic reaction works even when there are cells covering the surface and
while the bacteria are actively propagating. The end toxin produced at the death of cell is also
expected to be decomposed by photocatalytic action. Titanium dioxide does not deteriorate and it
shows a long-term anti-bacterial effect. Generally speaking, disinfections by titanium oxide is
three times stronger than chlorine, and 1.5 times stronger than ozone.
Glass & Windows
Air Purification & Purifiers
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.
Deodorization
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.
Mosquitos Killer Traps
Anti Fog
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 pure at all times. Anything you apply this glaze membrane to, it will be cleaned.
Paint
Facade
Moisture Repellent
Water Purification
Photocatalyst coupled with UV lights can oxidize organic pollutants into nontoxic materials, such
as CO 2 and water and can disinfect certain bacteria. This technology is very effective at
removing further hazardous organic compounds (TOCs) and at killing a variety of bacteria and
some viruses in the secondary wastewater treatment. Pilot projects demonstrated that
photocatalytic detoxification systems could effectively kill fecal coli form bacteria in secondary
wastewater treatment.
Industries served:
Hospitals
Medical Clinics and Centers
Hotels
Restaurants
Architecture Builders:
Contractors
Restoration and Renovators
Exterior Cleaning
Wall covering
Glass and Tile Manufacture
Siding
Painters
Masonry
Chemical Wholesale Distributors
Bars
Schools and Universities
Laboratories
Senior Centers
Pet Stores
Factories
Bars
Casinos
Resorts
Offices
Convert hazardous organic contaminants Into CO2 and H2O