1. As a sensor material
Nano TIO2 can be used not only for humidity and pressure sensitive components, but also as a sensor material to detect a variety of gases. For example, TIO2 can detect flammable gases such as H2, CO, and O2, and is especially used as an automobile exhaust sensor. By measuring the oxygen content in automobile exhaust, it can control the efficiency of automobile engines.
2. TIO2 as a catalyst carrier
Since researchers discovered strong interactions between certain metals and TIO2 carriers in 1978, most scientists in the field of catalysts in various countries have chosen TIO2 as catalyst carriers. For example, the activity of TIO2 as the carrier of the cobalt-molybdenum hydroconversion catalyst is higher than that of the catalyst with gamma AL2O3 as the carrier.
3. As a photocatalyst
At present, most of the semiconductors used for photocatalytic oxidation of organics are chalcogenide semiconductor materials, such as TIO2, ZNO, WO3, SNO2, etc. According to the catalytic theory and experiment of photosensitive semiconductor, the catalytic ability of semiconductor is related to its energy level structure. The smaller the band gap, the stronger the catalytic ability. However, from the energy level of the band gap and the photocathode corrosion resistance, the order of photocatalytic activity of semiconductor powder is TIO2>ZNO>WO3. TIO2 is widely selected as a catalyst for photocatalytic oxidation due to its stable chemical properties, strong redox properties, resistance to photocathode corrosion, insoluble, non-toxic, and low cost. Therefore, nano-TIO2 is a new type of semiconductor photocatalyst with high activity and high selectivity. Experiments show that nano-TIO2 can be used repeatedly for at least 12 times while keeping the photodecomposition efficiency basically unchanged. It maintains its photoactivity under continuous light for 580min, so it has broad development prospects for practical applications.
4, sterilization
Nano TIO2 is an inorganic antibacterial agent, non-toxic, odorless, non-irritating, good thermal stability and heat resistance, non-combustible, and effective.
5. Used as a raw material for solar cells
TIO2 is an important semiconductor material, inexpensive, completely harmless and stable. Its band gap is 3.2eV and can absorb ultraviolet light. Swiss scientists have used organic compounds of the transition metal Ru as dyes, matched with appropriate oxidation-reduction electrolytes, and made TIO2 cells with a photoelectric conversion efficiency of 7.1% under sunlight. In addition, its low cost has caused many Interests of research workers.
6. Nano TIO2 can be used as an anti-ultraviolet additive
In recent years, the United States, Japan, Germany, Britain, Australia and other countries have actively carried out sunscreen research and development. More than 50% of cosmetics in the United States have added sunscreens. In the past, sunscreens were mostly organic compounds. This year, a batch of inorganic powder sunscreens such as nano-ZNO, TIO2 and iron oxide red have become popular. Because they are non-toxic, odorless, non-irritating to the skin, do not decompose, do not deteriorate, and have good thermal stability, and the nano ZNO, TIO2 itself is white, can be simply colored, and has strong ability to absorb ultraviolet rays, so it is widely used in various types Daily chemical products.
Nano TIO2 can also be added to polyethylene film used as food packaging. Since the ultraviolet rays in the sun will decompose the vitamins and aromatic compounds in the food, the addition of TIO2 can protect the nutrients in the food and prevent the decolorization caused by the self-oxidation of the food. In addition, adding 0.5-4% TIO2 to the paint of the furniture can prevent the color of the furniture from turning black and prolong the service life of the furniture.
In addition, Nano TIO2 is also widely used in coatings, papermaking, plastics, printing inks, chemical fiber rubber, ceramics, welding rods and other fields.
SAT NANO is one of the best supplier of Titanium dioxide TiO2 powder in China, we can supply 5nm, 10nm, 30-50nm, 100nm, if you have enquiry, please feel free to contact us at admin@satnano.com
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