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Different sizes of gold nanoparticles have different light absorption ranges. The well-dispersed first wine is red. As time changes, it will settle, aggregate, absorb and reflect blue shift, and the color will be different. One of the main applications of gold nanoparticles is chemical and biological sensing. They have been used as effective sensors for detecting different analytes, such as metal ...
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Nano cuprous oxide is a new type of P-type semiconductor material with active hole-electron pairs and good catalytic activity. Because of its unique properties, it has a wide range of applications in many fields. SAT NANO---Nano cuprous oxide (Cu2O) is a widely used photoelectric material, it is the oxide of monovalent copper, dark red powder. The particle size is 30-50 nanometers and the purity i...
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Nano bismuth trioxide Bi2O3 is an important functional material, which mainly exists in four crystal forms: α, β, γ and δ. Different crystal forms have different applications. The application of bismuth oxide is very wide. It is not only a good organic synthesis catalyst, ceramic coloring agent, plastic flame retardant, medicinal astringent, glass additives, high refractive glass and nuclear engin...
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Alumina ceramics is a structural ceramic material with a-Al2O3 as the main crystal phase. Because of its high melting point, high hardness, heat resistance, corrosion resistance, and electrical insulation characteristics, it can be used under harsher conditions . The price of alumina ceramics is low, and the production process is mature. It is currently one of the ceramic materials with the larges...
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Copper oxide powder is a brown-black metal oxide powder with a wide range of uses. Copper oxide is a multifunctional fine inorganic material with a wide range of uses, mainly used in the fields of printing and dyeing, glass, ceramics, medicine and catalysis. It can be used as a catalyst and catalyst carrier and electrode activation material, and also as a rocket propellant. As the main component o...
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Nano zinc oxide is a new type of multifunctional fine inorganic material. Due to the small particle size, the nano-zinc oxide powder produces surface effects, small size effects, quantum effects and macro-quantum tunneling effects that the bulk material does not have, and exhibits many special properties. Such as non-toxic, non-migration, Fluorescence, piezoelectricity, antibacterial deodorization...
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Dental restoration parts customization Solution 1. Personalized and complex geometric products are the areas where metal 3D printing technology is best at, ensuring a good match with the patient’s mouth, and the surface roughness of the parts is very suitable for the adhesion between the ceramic outer layer and the body 2. Cobalt-chromium alloy is used for printing materials, which has good biolog...
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Chemical modification and dispersion is to use the surface groups of nanoparticles to form chemical bonds with reactive organic compounds. The nanoparticles are soluble in organic media due to the branched chains or groups of organic compounds on the surface. dispersion in. There are usually two ways of chemical modification: one is to use the end groups of macromolecules to chemically react with ...
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Nanoparticles have a special surface structure, which lacks adjacent coordinating atoms on the surface, and has high activity, so it is easy to agglomerate. Due to the strong self-absorption property among nanomaterial particles, the agglomeration of nanoparticles is inevitable. Aggregates can be divided into two types: hard agglomerates and soft agglomerates. The formation process of agglomerates...
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Nanomaterials exhibit many exotic properties that traditional materials do not have. The first thing we need to know is that the nanometer (mainly refers to less than 100nm) of the composition of nanomaterials has four major effects: 1. Small size effect The boundary conditions of the crystal periodicity are destroyed; the atomic density near the surface layer of the amorphous nanoparticle decreas...
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The specific surface area is the surface area (㎡/g) of the substance per unit mass. It is one of the most important physical properties of ultra-fine powder materials, especially nano-powder materials. It is used to evaluate their activity, adsorption, catalysis and other properties. important physical properties. Therefore, in the research, manufacture and application of various ultrafine powder ...
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Transmission Electron Microscope (TEM) Transmission electron microscopy uses an electron beam that penetrates a sample to image, which requires the sample being observed to be "transparent" to the incident electron beam. Transmission electron microscopy is widely used in materials science and biology. Since electrons are easily scattered or absorbed by objects, the penetration is low, and the dens...
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