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Nano TiO2 properties and photocatalytic properties Nano titanium dioxide has the characteristics of small size effect, high specific surface effect and high chemical activity of nano materials, and has high photocatalytic performance. Nano titanium dioxide is popular for its advantages such as low price, suitable forbidden band width, large specific surface area, high chemical stability, strong re...
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1.Degrade harmful organic matter in the atmosphere With the advancement of human science and technology, industrial development has become increasingly large, and it has also brought serious air pollution problems, among which serious pollutants are N0, H2s, and SO. , Volatile Organic Compounds (VOCS), etc., they can cause a series of major disasters such as photochemical smog, acid rain, ozone la...
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Nano zinc oxide and nano titanium oxide are two important and widely used physical sunscreens. Their principle of shielding ultraviolet rays is to absorb and scatter ultraviolet rays. Because they are all N-type semiconductors, the band gap of rutile nano-titanium oxide is 3.0 eV, and the band gap of nano-zinc oxide is 3.2 eV. When irradiated by ultraviolet rays, electrons in the valence band can ...
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Nano cerium oxide CeO2 additives can improve the microstructure of alumina-based ceramics, which is conducive to the densification of materials, and improves mechanical properties and thermal shock resistance. But different content of nano-cerium oxide CeO2 has different effects on its performance. 1. Nano cerium oxide CeO2 additive can obviously promote the sintering of alumina-based ceramics, im...
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Compared with traditional ceramic materials, ceramics sintered with nano titanium oxide produced by SAT NANO have the following characteristics: 1. Mechanical properties The mechanical properties of nano-oxide ceramics include the hardness, fracture toughness and low-temperature ductility of nano-ceramic materials. Especially the hardness and strength are greatly improved at high temperature, and ...
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1. Nano cerium oxide improves the anti-ultraviolet aging performance of polymers The 4f electronic structure of nano CeO2 is very sensitive to light absorption, and the absorption band is mostly in the ultraviolet region (200-400nm). It has no characteristic absorption of visible light and has good transmittance. Ordinary ultra-fine CeO2 for UV absorption has long been used in the glass industry: ...
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The singular properties of nanomaterials include: ①Surface effect The surface area of a spherical particle is proportional to the square of the diameter, and its volume is proportional to the cube of the diameter, so its specific surface area (surface area/volume) is inversely proportional to the diameter. As the particle diameter becomes smaller, the specific surface area will increas...
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As a new material of the technological revolution, ceramic materials have attracted the attention of some developed countries as early as more than ten years ago. The fatal shortcomings of ceramic materials are its brittleness, low reliability and low repeatability. These shortcomings have seriously affected the application range of ceramic materials. Only by improving the fracture toughness of ce...
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Open your mouth and align the teeth with a 3D scan, and the 3D printer can print a zirconia ceramic denture. Before the advent of 3D printing technology, people needed to bite out the dental membrane to make a denture, and then sent it to the factory for production, and repeated carving, the production cycle was longer, and 3D printing technology not only improved efficiency, but also greatly save...
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The phase change toughening of yttrium stabilized nano zirconia and the toughening effect of nanoparticles are used to improve the comprehensive mechanical properties of the alumina matrix. Adding different contents of nano 3Y-ZrO2 to the alumina matrix, the comprehensive mechanical properties of the material with a content of 15wt% of nano ZrO2 reach the best (flexural strength 766.74MPa, fractur...
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Due to the extremely strong surface activity of nano TiO2, it is easy to form large-sized agglomerates, which affects the practical application. Therefore, it can be modified from the aspects of improving the photocatalytic degradation efficiency of TiO2, changing the dielectric constant and surface activity of TiO2. There are two ways of combining surfactants with TiO2: one is physical adsorption...
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Nano technology spans multiple disciplines, involving a wide range of faces, and has had huge impacts in many areas and even the entire social life, such as in the fields of physics, chemistry, material science, biology, medicine, engineering, and computer simulation. Nano particles appeared in the 1980s, that is, pink particles with a particle size of less than 100nm. Because of the small nanopar...
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