What is nano titanium dioxide?

As the name suggests, it is nano-level titanium dioxide. Everyone must know about titanium dioxide. As a white pigment with the best performance currently recognized by the world, titanium dioxide is widely used in various industries, such as cosmetics, coatings, plastics, chemical fibers, papermaking, rubber, printing inks, etc. Nano is an extremely small measurement indicator, which refers to ultrafine particles with a particle size of less than 100 nm.

This ultrafine particle has a large surface area, high surface activity, and good catalytic properties. It has both metal and non-metal specific properties. With the rapid development of modern science and technology, the application of nano materials is becoming more and more extensive, and the requirements for them are becoming higher and higher. As for nano titanium dioxide, because it has great volume effect, surface effect, optical properties, and color effect, it shows its special properties in light, electricity, and catalysis. Therefore, as a new type of material, its application field is becoming more and more extensive.

Now that the concept of nano titanium dioxide has been introduced, let's take a look at its application.

1. Application in the chemical industry

Catalysis is one of the important fields of application of nano-ultrafine particles. The high specific surface area and high activity of nano-ultrafine particles can significantly improve the catalytic efficiency. It has been studied and developed as the fourth generation catalyst internationally. Nano titanium dioxide has high chemical activity, good heat resistance and chemical corrosion resistance, and can be used as a catalyst, catalyst carrier and absorbent with excellent performance. For example, nano titanium dioxide shows a very high catalytic activity when catalyzing H2S to remove S.

2. Application in electronic industrial products

Nano titanium dioxide is an important component of many electronic materials and can be used to make nano-sensitive materials and nano-ceramic functional materials. Due to the small size, large specific surface area and high surface activity of nano particles, it is suitable for gas-sensitive materials. For example, nano titanium dioxide can be made into highly sensitive gas-sensitive elements. At the same time, since the one-time plastic deformation of nano-phase ceramics can be achieved, people use nano titanium dioxide to form nano titanium dioxide ceramics by one-time deformation. This ceramic has ultrafine grain size and maintains their characteristics.

3. Application in environmental protection

The photocatalytic effect of nano titanium dioxide particles has a wide range of uses in environmental protection. There are many domestic and foreign literatures reporting progress in this area. The Nuclear Technology Environment Company in London and Ontario, UK, has developed a novel room-temperature photocatalytic technology that uses artificial light and nano-titanium dioxide catalysts to decompose polychlorinated biphenyl compounds in industrial waste liquids and contaminated groundwater. When contaminated water passes through the titanium dioxide coating network, as long as it is irradiated with low-dose ultraviolet light, it will react to generate highly active hydroxyl free radicals, which quickly decompose organic poisons into carbon dioxide and water. In addition, the use of nano-titanium dioxide materials as photocatalysts can also catalytically degrade dye pollutants discharged by the textile printing and dyeing industry and the photographic industry. With the development of social economy, people pay more and more attention to the improvement of quality of life and health level. Antibacterial, antiseptic, deodorization, air purification, and environmental optimization will become people's pursuit.

At present, the world is facing serious environmental pollution. Nano-titanium dioxide has been used as a long-term photocatalyst in various environmental issues besides water and air purification. Relevant data show that nano-titanium dioxide is useful for destroying microscopic bacteria and odors. In addition, it can inactivate cancer cells, control odor, and is very effective for nitrogen solidification and oil pollution removal.

4. Application in the cosmetics industry

Nano titanium dioxide has excellent ultraviolet shielding properties, coupled with its transparency (no white residue on the skin, can be thickly applied) and non-toxicity (will not irritate the skin and cause inflammation) and other characteristics, so far it has become an ideal raw material for sunscreen cosmetics. According to industry reports, a certain amount of nano titanium dioxide is used as an additive for sunscreen, cosmetic base and lipstick products in Japan every year.

5. Application in the fields of medicine, health and food processing

Nano structures are not only strong, but also have their own ability to resist external impurities and are not easy to combine with external impurities. At the same time, nano-scale particles or organic small molecules will be more conducive to human absorption and can improve the efficacy of drugs. Therefore, nano titanium dioxide has broad application prospects in health and food industries. According to data reports, titanium dioxide thin film ceramics with antibacterial and purification properties have been developed. In addition, nano titanium dioxide has been used in the food industry, such as as an additive for milk. In addition, nano titanium dioxide is also widely used in industries such as plastics and coatings. It can be used as a raw material for plastic fillers, advanced paints and coatings.