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itp, Phototroph, Photocatalytic, Photocatalyst, PCO, TiO2, nno-TiO2, nano-PCO, 光催化, 納米光催化, 光觸媒


 

Nano TiO2 / Nano PCO Type 納米二氧化鈦 / 納米光催化

     
產品及服務    

What is Titanium Dioxide Photocatalyst ?
Titanium Dioxide is one of the basic materials in everyday life. It has been widely used as white pigment in paints, cosmetics and foodstuffs. When nano sized Titanium Dioxide is exposed to UV or visible light in the presence of water vapor, two highly reactive substances are formed: hydroxyl radicals [OH] and a superoxide ion [O2-1]. These are highly reactive chemical species can decompose volatile organic compounds, odor, formaldehyde, bacteria into harmless substance like Carbon Dioxide and water.

 

 

JAPAN

日本

 

Principle:

 
Exposure to light energy
When a photon (light) with an suitable energy excites an electron (e-) from the valence band to the conduction band and leaving a positive hole (h+) behind.

 
OH radical appearance
The positive holes have the strong oxidation power and can react in an one-electron oxidation step with water to produce the highly reactive hydroxyl radical (•OH). Both the holes and the hydroxyl radicals are very powerful oxidants, which can be used to oxidize most organic contaminants.

 
Decomposition of organic compound
hydroxyl radical (•OH) takes the electron by the strong oxidation from the nearby organic compound to become stable oneself. In this way the organic compound is decomposed by loss of the electron and finally becomes carbon dioxide and water

 

 

 

1/. 去除空氣中各種有害物質

2/. 去除異味

3/. 去除水中汚染物

4/. 物仲長時間表面抗菌

5/. 物仲長時間表面抗污

 

Primary 5 Utilization
 
NOx Decomposition
Removal of harmful substance such as NOx and SOx, TVOC, formaldehyde in the atomosphere.
 
Deodorization
Adosorption and decomposition of odor such as acetaldehyde, ammonia, hydorogen sulfide.
 
Water treatment
Decomposition and removal of the volatility organic chlorine compound such as tetrachloroethylene and trichloroethylene that are the pollutant in the water.
 
Anti-Bacteria
Clean environment by the anti- bacteria and sterilization actions.
 
Dirtiness Prevention
Dirtiness prevention on curtain wall and window facade.


ITP TiO2 Coating Services / ITP 服務
We provide coating services to customer for different purpose e.g. long term anti-bacterial,chemical removal e.g. VOC & HCHO removal after decoration works and deodorize for bad smell in toilet etc... Effective period: 2 - 3 Years.

Customer has used ITP TiO2 Coating in Hong Kong:

EMSD Airport & Vehicle Engineering Services
Kai Shing Management Services Limited
Hang Lung Properties
Kiu Lok Service Management Co Ltd
Central Management Limited
Hysan Property Management Limited
Standard Chartered Bank Property Management
Marriott Properties (International) Ltd.
BOC International
Jones Lang Lasalle
University of Hong Kong
Hong Kong Oculoplastic Centre
Hong Kong Eye Surgery Centre

 

噴塗服務

噴塗服務


RoHS Directive 2002/95/EC Hazardous Substances Test
E-coli & S. aureus Removal Test

Specimen preparation
1. 20 ml ITP catalyst was inoculated with 0.1 ml bacteria culture (107 cells/ml)
2. 20ml 0.85% saline was inoculated with 0.1mL bacteria culture as a control
3. Place the ITP catalyst mixture in a light intensity of 850 ±50 lux
4. Pipette 1ml of catalyst mixtures at the time interval of 10 seconds, 1 min, 5 min,
5. 10 min, 30 min, 60 min and 24-hr for conducting standard plate count;
6. The plates were incubated at 35℃ for 48-hr;
7. Plate count agar was used for the bacteria count.

Result
 * Whenever there is no bacterium was detected on agar plate, the laboratory will report the result as less than one
** TNTC = Too numerous to count
 
Total Bacteria Surface Swab Test

Sampling procedure
1. Pick up a sterile, non-cotton swab from the package
2. Moisten the swab with sterile phosphate-buffered saline (PBS) solution
3. Wipe the surface. The wipe area is 10cm X 10cm.
4. Place the sampled swab in a sterile conical vial
5. Submit the samples to the laboratory for analysis
 
Formaldehyde Removal Test

Specimen preparation
1. Dosage of 20g/m2 ITP catalyst was used to spray coated on 6 pieces of 1m×1m card board specimen
2. 3 Specimens was put into a control chamber and 3 specimens were put into a test chamber.  Each chamber is 1.5m3 in volume
3. 40w fluorescent light was used in each chamber as light source
4. Fix amount of Formaldehyde was injected into each chamber
5. Measurements were taken after 24hr

Result
Formaldehyde concentration reduced from 2.62mg/m3 to 0.55mg/m3 in 24 hours.
The ITP catalyst reduced 80% of the formaldehyde in 24 hours.
 
Decomposition of Methylene Blue

Specimen preparation
1. Dosage of 20g/m2 ITP catalyst was used to spray coated on a wallpaper specimen
2. Dosage of 60ml/m2 10 ppm Methylene blue was coated onto the top of cured ITP catalyst surface
 

Measurement
1. Place the container under a fluorescent tube of 4000lux
2. Observe the color change after 12 hours

Result
Methylene Blue has been decomposed completely after 12 hours irradiation with fluorescent light.

 
MSDS
Detail Material Safety Data Sheet are ready for customer to more understand about ITP TiO2 material.

Catalogue / 簡介

ITP TiO2 Coating Services Leaflet


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