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What is Photocatalyst?
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What is Titanium
Dioxide?
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What effects does Green Innovations Group photocatalyst treatment have?
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What are the benefits of Green Innovations Group photocatalyst
treatments?
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Why is Green Innovations Group photocatalyst treatment semi-permanent?
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How long does Green Innovations Group photocatalyst treatment last after
application?
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Is Green Innovations Group photocatalyst treatment safe?
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Where can Green Innovations Group photocatalyst treatments be applied?
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How does Green Innovations Group photocatalyst treatment compare to
traditional air purification system?
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Can Green Innovations Group photocatalyst coating be easily removed?
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What factors may influence the efficiency of Green
Innovations Group photocatalyst treatment?
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What is Indoor
Air Pollution?
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What is Sick
Building Syndrome?
Q:
What is photocatalytic?
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.
^Top^
Q:
What is Titanium dioxide?
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.
^Top^
Q:
What effects does Green Innovations Group 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 Innovations Group’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.
^Top^
Q:
What are the benefits of Green Innovations Group 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.
^Top^
Q:
Why is Green Innovations Group 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.
^Top^
Q:
How long does Green Innovations Group 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 Innovations
Group is now
offering a five years product and services warranty.
^Top^
Q:
Is Green Innovations Group photocatalyst treatment safe?
A:
Yes,
it will be no harm of direct touching the material or having
direct contact with it after its drying time. The material is
totally safe and the titanium dioxide used is FDA approved
(refer to EPA certified toxicity lab report).
^Top^
Q:
Where can Green Innovations Group photocatalyst treatments be applied?
A: Green
Innovations Group
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
|
In automobiles |
Building Exterior |
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Photocatalyst can
deodorize the interior and gives the driver and
passengers a more pleasant driving experience. Odor
embedded in the carpet and seats will eventually be
decomposed and gives the car owner that new car feel
again.
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Green Millennium’s
Nano-TiO2 Photocatalyst can be applied on the exterior
of a building to treat and prevent unsightly damages
caused by acid rain, moisture, and smog. It cuts down
the overall maintenance cost and time.
|
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Deodorizing Indoor
Environment |
Sanitizing and
Sterilizing Environment |
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Green Millennium’s
Nano-TiO2 Photocatalyst decomposes odor molecules caused
by tobacco smoke, pets, chemicals in detergents, urine
and fecal matters. Photocatalyst will continuously
deodorize your living space and eliminates the sources.
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With a constant amount of
light provided, Green Millennium’s Nano-TiO2
photocatalyst can control and prevent growth of
bacteria, germ, and mold. Any harmful bacteria and germ
would be killed and eventually decomposed in this
sterilized condition.
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Hospital
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Schools
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Public Restrooms
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Restaurant
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Day-Care centers
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^Top^
Q:
How does Green Innovations
Group
photocatalyst treatment compare to traditional air purification
system?
A:
|
HEPA (High Efficiency
Particle Arresting) Filter
Most widely known method
for purifying air. Depending on the filter size, it can
clean up to 99.99% of particulate in the air with proper
ventilation. They are not effective on treating mold,
mildew, bacteria, and other fungi.
Electrostatic
Filtration
Another filtration system
with a negatively charged surface is used to attract
particulate. In comparison to most HEPA systems it is
more effective in trapping smaller micron particulate
and effective in clearing smoke from the air. Low levels
of ozone may be produced which can neutralize most mold,
mildew, bacteria, and other fungi that comes in contact
with the filter.
Ionization
Also uses a negatively
charged surface to produce and expels an abundance of
negative ions and cause suspended particles to cling to
walls, floors, and other surfaces . Most ionizers are
effective in settling dust and particulate out of our
breathing space.
Ozone
Ozone is a very powerful
oxidizer that will neutralize odors, mold, mildew,
bacteria, and other fungi. This technology is commonly
used in flood and fire restoration. Ozone is found to be
effective because it works on the problem at the source
and air does not have to be pulled through the unit for
treatment.
UV Germicidal Lamps
Commonly used for
disinfecting purposes. This technology is effective in
sterilizing air and surfaces that come in contact with
the UV light. UV has been proven in both air and water
applications to inactivate bacteria and viruses to
prevent them from reproducing.
Photocatalysis
Using light to react with
a catalyst resulting in oxidation. This is found to be
effective in destroying mold, mildew, bacteria, other
fungi, dust mites, and many odors. This technology is
produced with an Ozone/UV lamp set in a variety of
combinations. When this type of photocatalysis is
combined with the natural humidity in indoor air it
creates hydroxyl radicals and super oxide ions that are
effective in combating bacteria, fungi and VOC. This
method is also a pro-active approach that goes to the
source for treatment. |
|
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Hepa Filter
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Electrostatic
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Ozone
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UV
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Ionizer
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Photocatalysis
|
|
Mold
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Poor
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Good
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Good
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Good
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Poor
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Excellent
|
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Bacteria
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Poor
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Good
|
Good
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Good
|
Poor
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Excellent
|
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Dust Mites
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Poor
|
Poor
|
Poor
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Good
|
Poor
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Excellent
|
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Gases
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Poor
|
Poor
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Good
|
Good
|
Poor
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Excellent
|
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Odors
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Poor
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Good
|
Good
|
Poor
|
Good
|
Excellent
|
|
Smoke
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Good
|
Good
|
Good
|
Poor
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Excellent
|
Good
|
|
VOCs
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Poor
|
Poor
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Good
|
Good
|
Poor
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Excellent
|
|
Pet Dander
|
Good
|
Good
|
Good
|
Good
|
Good
|
Excellent
|
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^Top^
Q:
Can Green Innovations Group photocatalyst coating be easily removed?
A:
After being dry,
photocatalyst forms a very solid film that can’t be wiped off
unless strong cleaning chemicals are used.
^Top^
Q:
What factors may influence
the efficiency of Green Innovations Group photocatalyst treatment?
A:
Light and airflow will have a remarkable influence over the
reaction of the photocatalyst. Both factors are needed to
maintain the coating effectiveness all the time. From that, the
better airflow you have (air circulation which can be obtained
by using an ordinary fan or the normal air movement from air
conditioner ducts) and the longer light times, the better the
results of coating will be achieved.
^Top^
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
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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.
^Top^
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.
^Top^
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