Nano-PhotocatalystIt refers to a substance that, under light, does not undergo chemical changes on its own, but can promote chemical reactions, and its function is like chlorophyll in photosynthesis. The Titanium Nano-TiO2 is the main photocatalyst material, and when it absorbs energy from sunlight or other light sources, the electrons on the surface of the particles are activated to escape from the original orbit, while the surface produces positively charged holes. The escaping electrons have strong reduction, while the holes are strongly oxidized, and the two react with the water vapor in the air to produce reactive oxygen species and hydrogen oxygen free radicals. Reactive oxygen species, hydrogen oxygen free radicals can be most of the organic matter, pollutants, odors, bacteria and other oxidation decomposition into harmless carbon dioxide and water.
Nano-Photocatalyst Technology is a nano-bionic technology for environmental purification, self-cleaning materials, advanced new energy, cancer medicine, high efficiency antibacterial and many other frontier fields.
Nanometer titanium dioxide (photocatalyst) is widely used in indoor air purification, sewage treatment, coatings, cosmetics, plastics, textiles, ceramics, glass, deodorization, disinfection and sterilization and other fields. For example: In the aquaculture industry can be used to prevent a variety of animal transmission epidemic diseases, in the textiles can be produced a variety of functional fibers, such as anti-ultraviolet type, antibacterial deodorization type, far infrared reflex, waterproof anti-fouling type and other multifunctional textile products; in the field of paint can be made of strong coloring car metal flash topcoat and antirust paint In the field of coatings, coating products with the functions of disinfection, sterilization and air purification can be produced by adding this product.
The common Photocatalyst products on the domestic market are mainly divided into gold, egg yellow and milky white three colors. Production process and nanometer titanium dioxide particle size, titanium dioxide can be evenly distributed in the photocatalyst liquid, does not produce precipitation and other flocculants, so the high-quality photocatalyst products for light yellow transparent liquid.
In selecting Photocatalyst products, the general consumer first needs manufacturers to provide sterilization testing with CMA logo, harmful substance degradation and non-toxic experimental reports, and then through sensory identification methods to judge the quality of the product.
Inferior products are mostly in milky white products, such products static 5-10 minutes will appear precipitation, the bottom of the bottle stacked a large number of white particulate matter. This precipitation indicates that the product dispersion process is poor, resulting in titanium dioxide agglomeration. This kind of agglomeration will directly affect the activity of photocatalyst, reduce the photocatalytic ability of the product, and then lose the effect of pollution degradation.
High-quality photocatalyst products do not have any odor, while shoddy photocatalyst has a strong sour odor or strong alkaline flavor. The acid and alkaline of the product can be measured with a simple ph test paper. The appearance of odors indicates that the product has added a large number of organic components in the production process, such as phosphoric acid and other corrosive acid substances, spraying will cause pollution and corrosion to the environment
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