Nano TiO2 anatase is a kind of white powder product. It has a strong
photocatalytic oxidation-reduction capacity, high chemical stability,
non-toxic, forbidden band gap of 3.0 eV, being UV (under 380 nm) excited
scope. In the effect of sunlight or ultraviolet light , the electronic
(e-) on the valence band can be excited transition to the conduction
band and brought a corresponding hole (h +) on the valence band. And
then h + e- and H2O adsorbed on the surface of TiO2 play a role and
generate ? OH, ? O2-high active Group, active oxygen and hydroxyl
radical with high oxidation which can make harmful organics, pollutants
odor, bacteria etc. such as formaldehyde, aminomethane, benzene,
xylene,ammonia, organic TVOC, and so on oxidative decompose into
harmless CO2 and H2O. Giving full expression to the nano TiO2
photocatalyst for antibacterial, sterilization, disinfection, remove
pollutants, hydrophilic, and the self-cleaning properties, it is an
ideal environmental protection products.
Product standards:
Appearance: white powder
TiO2 content: ≥ 90%
Crystal: anatase
SEM average size: ≤ 20 nm
PH value: acidic
Photocatalytic efficiency: ≥ 60%
Moisture: ≤ 1%
Product Performance:
It is a white powder-like object, under the influence of the visible or ultraviolet light it has a strong ability to oxidation and reduction, stable chemical properties, making formaldehyde, methylamine, toluene, xylene, and other harmful organics, pollutants, odors, bacteria, viruses, microorganisms and other harmful organisms completely decompose into harmless CO2 and H2O, and having the specialities such as removal of pollutants, hydrophilic, and self-cleaning properties, lasting performance and no secondary pollution.
Product application areas:
It is applicable to make a variety of goods with the ability of disinfection, air purification, sewage treatment, nanotechnology and self-cleaning, anti-ultraviolet and the removal of the smell of fish. In the field of textile the product can produce a variety of fibre: anti-ultraviolet type, anti-bacterial deodorant type, far infrared reflective, cool type, water repellent and pollution prevention, conductive, flame retardant type of multi-functional textile products. In the field of paint, coatings can produce highly colored car-mental flashlight paint and rust-proof paint. The coatings add the product which can produce various disinfection sterilization purification paint products.
Spectrum of products ：
Mechanism of nano-TiO2 photocatalysis
Mechanism is divided into seven steps to complete the process of photocatalytic：
1, TiO2+hv→ eˉ+ h+
2, h+ +H20→?OH + H+
3, eˉ+02→?O0ˉ
4, ?O0ˉ+H+ →?OOH
5, ?O0ˉ+e- + 2H+ →H202
6, H2O2 2?OH
7, hˉ+OHˉ→?OH
A photon which have hv energy or with greater than the semiconductor band gap Eg, when enter into the semiconductor, the electronic (e-) on the valence band can be excited transition to the conduction band,then generate the high active e- .leave a hole on the VB, formed oxidation-reduction system. There are interaction between dissolved oxygen and water the electronic and h+, generate the high active hydroxide finally.
Hydroxyl radical have high oxidation, the most organic pollutants which adsorbed on the TiO2 surface can be decomposed into harmless CO2 and H2O. oxidation inorganic contaminants or return to the harmless objects.
Product standards:
Appearance: white powder
TiO2 content: ≥ 90%
Crystal: anatase
SEM average size: ≤ 20 nm
PH value: acidic
Photocatalytic efficiency: ≥ 60%
Moisture: ≤ 1%
Product Performance:
It is a white powder-like object, under the influence of the visible or ultraviolet light it has a strong ability to oxidation and reduction, stable chemical properties, making formaldehyde, methylamine, toluene, xylene, and other harmful organics, pollutants, odors, bacteria, viruses, microorganisms and other harmful organisms completely decompose into harmless CO2 and H2O, and having the specialities such as removal of pollutants, hydrophilic, and self-cleaning properties, lasting performance and no secondary pollution.
Product application areas:
It is applicable to make a variety of goods with the ability of disinfection, air purification, sewage treatment, nanotechnology and self-cleaning, anti-ultraviolet and the removal of the smell of fish. In the field of textile the product can produce a variety of fibre: anti-ultraviolet type, anti-bacterial deodorant type, far infrared reflective, cool type, water repellent and pollution prevention, conductive, flame retardant type of multi-functional textile products. In the field of paint, coatings can produce highly colored car-mental flashlight paint and rust-proof paint. The coatings add the product which can produce various disinfection sterilization purification paint products.
Spectrum of products ：
Mechanism of nano-TiO2 photocatalysis
Mechanism is divided into seven steps to complete the process of photocatalytic：
1, TiO2+hv→ eˉ+ h+
2, h+ +H20→?OH + H+
3, eˉ+02→?O0ˉ
4, ?O0ˉ+H+ →?OOH
5, ?O0ˉ+e- + 2H+ →H202
6, H2O2 2?OH
7, hˉ+OHˉ→?OH
A photon which have hv energy or with greater than the semiconductor band gap Eg, when enter into the semiconductor, the electronic (e-) on the valence band can be excited transition to the conduction band,then generate the high active e- .leave a hole on the VB, formed oxidation-reduction system. There are interaction between dissolved oxygen and water the electronic and h+, generate the high active hydroxide finally.
Hydroxyl radical have high oxidation, the most organic pollutants which adsorbed on the TiO2 surface can be decomposed into harmless CO2 and H2O. oxidation inorganic contaminants or return to the harmless objects.