Copper oxide nano-powder is a brown-black metal oxide powder with a wide range of uses. In addition to the role of catalysts and sensors, an important role of nano-copper oxide is antibacterial.
The antibacterial process of metal oxides can be simply described as:
Under the excitation of light with energy greater than the band gap, the generated hole-electron pairs interact with O2 and H2O in the environment, and the generated reactive oxygen species and other free radicals chemically react with organic molecules in the cell, thereby decomposing the cell and achieving antibacterial the goal of. Since CuO is a p-type semiconductor, it has holes (CuO) +, which may interact with the environment to play an antibacterial or antibacterial effect.
Studies have shown that nano-CuO has excellent antibacterial properties against Escherichia coli, Bacillus subtilis, Salmonella, Pseudomonas aeruginosa and Staphylococcus aureus, and its antibacterial effect on Pseudomonas aeruginosa and Salmonella is more obvious.
Nano-copper oxide is a good anti-corrosion material for wood. The direct economic loss caused by the decay of the wood in use every year around the world cannot be underestimated. While ensuring the durability of wood, without causing long-term irreversible damage and impact on the environment, low-toxicity and chlorine-free organic wood sterilization materials are full of broad application prospects. Wood anti-corrosion depends on the degree of penetration of anti-corrosion materials into the microstructure of wood. Compared with ordinary copper powder, nano-copper particles can cover a wider range in the internal microstructure of wood. Therefore, compared with traditional anti-corrosion materials, nano-copper particles can achieve the purpose of wood anti-corrosion more effectively.
In addition, adding nano-copper oxide to plastics, synthetic fibers, adhesives and coatings can maintain high activity for a long time even in harsh environments.
Hongwu Nano can provide copper oxide powder or nano copper oxide dispersion with a particle size range of 30-50nm. Welcome to consult and order.