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A: When a photocatalyst titanium dioxide (TiO2) captures ultraviolet light (UV) either from sun or fluorescent light, it forms activated oxygen from water or oxygen in the air. This process is similar to photosynthesis, in which chlorophyll captures sunlight to turn water and carbon dioxide into oxygen and glucose. The formed activated oxygen is strong enough to oxidize and decompose organic materials or smelling gas, and kill bacteria.
A:
Titanium
dioxide, also known as titania, is the naturally occurring oxide of
titanium, chemical formula TiO2. Approved
by the food testing laboratory of the United States Food and Drug
Administration (FDA), Titanium Dioxide is considered a safe
substance and harmless to human. It is commonly used in paint,
printing ink, plastics, paper, synthetic fibers, rubber, condensers,
painting colors and crayons, ceramics, electronic components along
with food and cosmetics. Many studies have been published on the use
of titanium dioxide as a photocatalyst for the decomposition of
organic compounds. After
illuminated by light, titanium dioxide produces hydroxyl radicals,
which react with the organic matters in the air to form non-toxic
inorganic matters.
Q:
What
effects does Green Titan photocatalyst treatment have?
A:
We succeeded in
finding a novel phenomenon on the photocatalyst. That is, when the
surface of photocatalytic film is exposed to light, the contact
angle of the photocatalyst surface with water is reduced gradually.
After enough exposure to light, the surface reaches super-hydrophilicity.
In other words, it does not repel water at all, so the water cannot
exist in the shape of a drop, but spreads flatly on the surface of
photocatalyst.
The photo-catalytic super-hydrophilicity is
important technology, because it has wider applications, including
anti-fogging, self-cleaning properties, sterilization,
deodorization, antifouling and removal of pollutants can be
achieved. UV
rays are part of sunlight and fluorescent light, no special
operating costs are required and the reaction can be maintained
semi-permanently. Moreover, Green Titan’s photocatalyst contains
no volatile organic compound (VOC) and neutral pH. This supports
government’s Green House theory to help create a safe, low
emission of VOC, and energy saving house.
Q:
What
are the benefits of Green Titan photocatalyst treatments?
A: Hydroxyl radicals are among the strongest oxidizing species, even much stronger than chlorine, ozone, and peroxide. They act as very powerful disinfecting agents by oxidizing the cells of microorganisms, causing rupture and leakage of vital composition.
Deodorizing. 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 hydrocarbon molecules in
the atmosphere Sterilization,
Anti-Bacterial and Mold Preventing Nano
photocatalyst titanium dioxide has strong oxidation affects to
single-celled organism that includes all bacteria and fungus. The
very strong oxidizing power of Titanium Dioxide can destroy
bacteria's cell membrane, causing leakage of the cytoplasm, which
inhibits bacteria’s activity and ultimately results in the death
and decomposition of bacteria. Generally speaking, disinfections by
titanium oxide is three times stronger than chlorination, and 1.5
times stronger than ozonation.
Q:
Why is Green Titan photocatalyst treatment semi-permanent? A: Although it is originally water-soluble, it dries quickly after application and becomes water-insoluble. It also becomes as hard as a 4H pencil in ten to fourteen days after application. It does not come off unless the surface is polished. Even a bathroom can be used immediately after application. Because titanium oxide is merely the catalyst and is not changed, its effect is semi-permanent except when walls and ceilings are repainted.
Q: How long does Green Titan photocatalyst treatment last after application?
A: Since photocatalyst TiO2 is only acting as semi-conductor catalyst, it is not consumed during the oxidation process, therefore, completing a long lasting oxidation cycle. Green Titan is now offering a five years product and services warranty.
Q:
Is Green Titan photocatalyst treatment safe?
Q: Where can Green Titan photocatalyst treatments be applied?
A:
Green Titan provides
photocatalyst surface coating for long-lasting effects of
deodorization, sterilization, and anti-soiling purposes. Using our
specialized spray-coating equipments, a fine mist of photocatalyst
can be applied on different types of surface material that
guarantees the maximum result
Q: How does Green Titan photocatalyst treatment compare to traditional air purification system?
A:
Q:
Can Green Titan photocatalyst coating be easily removed?
Q:
What
factors may influence the efficiency of Green Titan photocatalyst
treatment?
Q:
What is Indoor Air Pollution? A:
Research indicates that
people spend approximately 80 ~ 90 percent of their time indoors,
where they are exposed to polluted indoor air that may cause
irritation of the eyes, nose, and throat, headaches, dizziness,
fatigue, and even lung cancer or other malignancies. Recent study
reveals that bacteria, molds and house dust mites bred inside
carpets and air conditioners can be airborne by dust particles,
paints, varnishes, harmful chemical fibers and pressed wood
products, which are most commonly used in household decoration, may
emit formaldehyde, benzene and other hazardous and carcinogenic
organic chemicals -- all these as well as unwholesome matters
produced in the metabolism of human bodies and ammonia inside
toilets have made the air within homes and other buildings more
seriously polluted than the outdoor air. People
may experience one or more of the following reactions when exposed
to indoor air pollution: Allergic
Reactions Some
common signs and symptoms are: ·
Watery eyes ·
Runny nose and sneezing ·
Nasal congestion ·
Itching ·
Coughing ·
Wheezing and difficulty breathing ·
Headaches ·
Fatigue Infectious
Reactions Caused
by bacteria and viruses, such as influenza, measles, chicken pox,
and tuberculosis. Most infectious diseases pass from person to
person through physical contact. Crowded conditions with poor air
circulation can promote this spread. Some bacteria and viruses
thrive in buildings and circulate through indoor ventilation
systems. Toxic
Reactions Some
fungi are known to produce toxic substances as a by-product of their
metabolism, which can cause a variety of adverse health effects.
Short-term symptoms can include dermatitis, respiratory irritation,
headaches and fatigue. Long-term health effects can include cancer,
damage to the central nervous system, and suppression of the immune
system. The U.S. Environmental Protection Agency ranks poor indoor air quality among the top five environmental risks to public health. Poor indoor air quality can cause or contribute to the development of chronic respiratory diseases such as asthma and hypersensitivity pneumonitis. In addition, it can cause headaches, dry eyes, nasal congestion, nausea and fatigue. People who already have respiratory diseases are at greater risk.
Q:
What is Sick Building
Syndrome? A:
The term " sick
building syndrome " (SBS) is used to describe situations in
which building occupants experience acute health and comfort effects
that appear to be linked to time spent in a building, but no
specific illness or cause can be identified. The
following have been cited causes of or contributing factors to sick
building syndrome: 1.
Inadequate ventilation In
an effort to achieve acceptable Indoor Air Quality or IAQ while
minimizing energy consumption, the American Society of Heating,
Refrigerating and Air-Conditioning Engineers (ASHRAE) recently
revised its ventilation standard to provide a minimum of 15 cfm of
outdoor air per person (20 cfm/person in office spaces). Up to 60
cfm/person may be required in some spaces (such as smoking lounges)
depending on the activities that normally occur in that space. 2.
Chemical contaminants from indoors sources Most
indoor air pollution comes from sources inside the building. For
example, adhesives, carpeting, upholstery, manufactured wood
products, copy machines, pesticides, and cleaning agents may emit
volatile organic compounds (VOCs), including formaldehyde.
Environmental tobacco smoke contributes high levels of VOCs, other
toxic compounds, and respirable particulate matter. Research shows
that some VOCs can cause chronic and acute health effects at high
concentrations, and some are known carcinogens. Low to moderate
levels of multiple VOCs may also produce acute reactions. Combustion
products such as carbon monoxide, nitrogen dioxide, as well as
respirable particles, can come from unvented kerosene and gas space
heaters, woodstoves, fireplaces and gas stoves. 3.
Chemical contaminants from outdoor sources The
outdoor air that enters a building can be a source of indoor air
pollution. For example, pollutants from motor vehicle exhausts;
plumbing vents, and building exhausts (e.g., bathrooms and kitchens)
can enter the building through poorly located air intake vents,
windows, and other openings. In addition, combustion products can
enter a building from a nearby garage. 4.
Biological contaminants Bacteria,
molds, pollen, and viruses are types of biological contaminants.
These contaminants may breed in stagnant water that has accumulated
in ducts, humidifiers and drain pans, or where water has collected
on ceiling tiles, carpeting, or insulation. Physical symptoms
related to biological contamination include cough, chest tightness,
fever, chills, muscle aches, and allergic responses such as mucous
membrane irritation and upper respiratory congestion.
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