Oxides Nanoparticles
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    Oxides Nanoparticles List

    The attractive features of nanomaterials in terms of structure, photoelectricity and chemical properties have attracted the attention of experts in various fields. Nanoparticles are often used as catalysts due to their large surface area and many surface active centers. Common oxides nanoparticles are titanium dioxide (TiO2), zinc oxide (ZnO), aluminum oxide (Al2O3), silicon oxide (SiO2), rare earth oxides, etc.

    Classification and application of oxides nanoparticles.Figure 1. Classification and application of oxides nanoparticles.


    • Coating preservative: Nanoparticles TiO2 can not only absorb ultraviolet rays, but also reflect and scatter ultraviolet rays, and can also transmit visible light. It is a physical shielding type ultraviolet protective agent with superior performance and promising development. The transparency and ultraviolet absorption capacity of nanoparticles TiO2 can also be used as food packaging films, inks, coatings and plastic fillers. It can replace organic ultraviolet absorbers, and can improve the aging resistance of coatings when used in coatings. Nanoparticles ZnO has excellent anti-oxidation and anti-corrosion properties, high melting point, ultraviolet shielding ability, and sterilization and deodorization. It can be added to coatings to significantly enhance the corrosion resistance of coatings.
    • C: Nanoparticles TiO2 can effectively kill bacteria under photocatalysis. Adding nanoparticles TiO2 to the coating can produce antibacterial, antifouling, deodorizing and self-cleaning antibacterial and antifouling coatings, which can be used in hospital wards, bacteria are dense in operating rooms and family bathrooms. Nanoparticles ZnO can promote the proliferation of lymphocytes in mixed lymphocyte culture, and can enhance the strength of immune response. Al2O3 bioceramics basically do not corrode in the physiological environment, and have good structural compatibility. New tissues can grow into the intersecting gaps on the surface of the porous ceramics, and the bonding strength with the body tissues is high. And it has the characteristics of high strength, low friction coefficient, low wear rate, etc., and is widely used in human bones.
    • Active catalyst and catalyst carrier: Alumina has obvious adsorbent characteristics and can activate many bonds (H-H, C-H), so it can be directly used as an active catalyst in reactions such as hydrocarbon cracking and alcohol dehydration to ether. Alumina has a small size, a large volume fraction on the surface, and an increase in surface active sites due to incomplete atomic coordination. Moreover, as the particle size decreases, the surface smoothness becomes worse, forming uneven atomic steps, increasing the contact surface of chemical reactions, so nanoparticles alumina is also an excellent catalyst carrier.
    • Optical materials: Nano alumina can absorb ultraviolet light and can generate light waves of wavelengths related to particle size when excited by light of certain wavelengths. Alumina can be sintered into transparent ceramics and used as a material for high-pressure sodium lamps; it can be used as a protective coating for the phosphor layer in compact fluorescent lamps; it can also be compounded with rare earth phosphors to make fluorescent lamps as luminescent materials to improve lamp life.
    • Electronics industry: Because of its huge surface and interface, nano alumina is sensitive to external humidity changes and has high stability. It is an ideal material for humidity sensors and humidity thermometers. At the same time, nano alumina also has good electrical insulation, chemical durability, heat resistance, strong radiation resistance, high dielectric constant, flat and uniform surface, and can be used as a substrate material for semiconductor materials and large-scale integrated circuits. Nanoparticles SiO2 is an amorphous white powder, a non-toxic, odorless, and non-polluting non-metallic material. The particle structure is very special and exhibits strange or abnormal physical and chemical properties. Nanoparticles SiO2 has excellent light, force, electricity, heat, magnetism, emission, absorption and other special properties, and is widely used in semiconductors, electrodes and integrated circuits.


    1. Mya Mya Khin, A. Sreekumaran Nair, V. Jagadeesh Babu, Rajendiran Murugana and Seeram Ramakrishna. A review on nanomaterials for environmental remediation. Energy Environ. Sci., 2012, 5, 8075-8109.
    2. Thanh-Dinh Nguyen. From formation mechanisms to synthetic methods toward shape-controlled oxide nanoparticles. Nanoscale, 2013, 5, 9455-9482.
    3. Yanyan Zhang, Zhelong Jiang, Jianying Huang, Linda Y. Lim, Wenlong Li, Jiyang Deng, Dangguo Gong, Yuxin Tang, Yuekun Lai and Zhong Chen. Titanate and titania nanostructured materials for environmental and energy applications: a review RSC Adv., 2015, 5, 79479-79510.
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