China nickel cobalt iron oxide powder Manufacturers, Suppliers, Factory

The passivation layer of metal nanoparticles refers to a thin film or protective layer coated on the surface of metal nanoparticles. It usually consists of a compound, such as an oxide, sulfide, or organic compound. This passivation layer can alter the surface properties of metal nanoparticles and provide protection and stability.

The fusion of nanotechnology and textile engineering has led to the development and improved performance of multifunctional smart materials in various application fields. One recent breakthrough is the one-step synthesis of AgNPs/CNTs spray-coating solution, which is used to anchor silver nanoparticles on multi-walled carbon nanotubes and apply them onto nonwoven fabric to create multifunctional smart textiles.

Antibiotics refer to drugs that can inhibit bacterial growth, damage their living environment, and effectively and continuously exert their effects. Antibacterial agents are divided into two categories: organic antibacterial agents and inorganic antibacterial agents. Among them, organic antibacterial agents include natural and synthetic types, while inorganic antibacterial agents mainly include metals, metal ions, and oxides. The commonly referred to antibacterial measures include inhibition, killing, elimination of toxins secreted by bacteria, and prevention. Due to the strong thermal stability, long-lasting functionality, and safety and reliability of inorganic antibacterial agents, coupled with the development of ultra-fine technology in recent years, nanoscale inorganic antibacterial agents can be mass-produced and blended or composite into chemical fibers, ensuring the industrialization of antibacterial chemical fibers.

​Copper nanoparticles have attracted a lot of interest in recent years due to their interesting properties, low-cost preparation, and many potential applications in catalysis, cooling fluids, or conductive inks. In this study, copper nanoparticles were synthesized by chemical reduction of copper sulfate CuSO4 and sodium borohydride NaBH ₄ in water without inert gas protection.

Nano-aluminum oxide is a widely used material, especially in the field of nanotechnology, due to its unique physicochemical properties such as high surface area, high thermal stability, and excellent catalytic activity. However, the surface properties of nano-aluminum oxide play an important role in its performance in many applications. Therefore, surface modification of nano-aluminum oxide is essential to improve its properties for specific applications. In this article, we discuss one of the effective surface modification methods of nano-aluminum oxide, which involves using a silane coupling agent (KH-560).

In the preparation of oxide powders, specific surface area is a very important indicator, which directly affects the performance and application of the powder. However, the specific surface area is influenced by many factors, the most important of which is the preparation method. Different preparation methods can lead to differences in the size, shape, and porosity of powder particles, which in turn affect their specific surface area. Therefore, when choosing a preparation method, it is necessary to select the appropriate process based on specific application requirements.