Zinc Oxide Nanopowder Water Dispersion (ZnO, 20wt%, 50-80nm)

Zinc Oxide Nanopowder Water Dispersion (ZnO, 20 wt%, 50–80 nm) is a water-based suspension containing zinc oxide nanoparticles with a size range of 50–80 nanometers and a concentration of 20% by weight of zinc oxide. This dispersion combines the unique properties of ZnO nanoparticles, such as their UV-blocking, antimicrobial, and photocatalytic characteristics, with the ease of use provided by a water-based solution. Here is a breakdown of its key features:

1. Composition:

• Zinc Oxide (ZnO):
  • Zinc oxide is a versatile inorganic compound widely used in a variety of applications due to its excellent UV absorption, photocatalytic activity, and antibacterial properties.
• Particle Size (50–80 nm):
  • The nanoparticle size of 50–80 nanometers offers a balance between surface area for reactivity and stability in dispersion, ensuring effective performance without excessive agglomeration.
• 20 wt% Concentration:
  • The formulation contains 20% zinc oxide by weight, which allows for concentrated applications while maintaining an easy-to-handle dispersion.
• Water-Based Dispersion:
  • The ZnO nanoparticles are suspended in water, making it compatible with a variety of water-based systems, eco-friendly, and safe for users.

2. Key Properties:

• UV Absorption:
  • Zinc oxide is widely known for its ability to absorb UV radiation. This makes it particularly useful in sunscreen, cosmetics, and coatings to protect against harmful UV rays.
• Antimicrobial Activity:
  • ZnO nanoparticles exhibit antimicrobial properties, making them effective in controlling bacteria, fungi, and viruses. This is beneficial in medical and textile applications.
• Photocatalytic Properties:
  • ZnO can degrade organic pollutants when exposed to UV light, making it useful for air and water purification applications.
• Hydrophilic:
  • Being a water-based dispersion, it ensures easy integration into water-based formulations without the need for additional dispersing agents.
• High Surface Area:
  • The nanoparticle size range of 50–80 nm offers a relatively high surface area, which enhances the material’s reactivity, especially in photocatalysis and antimicrobial applications.

3. Applications:

• UV Protection:
  • Sunscreens: Zinc oxide is commonly used in sunscreens for its excellent ability to block both UVA and UVB rays.
  • Cosmetics: Used in skincare and cosmetic products for UV protection, as well as to reduce inflammation and irritation.
  • Coatings: Ideal for outdoor coatings (e.g., paints, roof coatings) to provide UV stability and protect surfaces from degradation.
• Antibacterial and Antifungal Applications:
  • Medical Textiles: Incorporated into wound dressings, bandages, and fabrics to prevent infection.
  • Surface Coatings: Used on surfaces to prevent microbial growth, particularly in healthcare settings.
• Photocatalysis:
  • Air and Water Purification: ZnO nanoparticles are effective in degrading pollutants, making them useful in environmental applications, such as purifying wastewater or removing harmful chemicals from air.
  • Self-Cleaning Surfaces: ZnO is used in self-cleaning technologies where the nanoparticles degrade dirt and organic contaminants when exposed to sunlight.
• Paints and Inks:
  • Provides opacity, white pigmentation, and improved UV resistance in paints, coatings, and inks.
• Rubber and Plastics:
  • ZnO is commonly used as an activator and stabilizer in the production of rubber and plastic materials.

4. Advantages:

• Broad UV Protection:
  • Zinc oxide offers a broad-spectrum UV shield, making it effective in protecting materials or skin from harmful UV rays.
• Antibacterial and Antifungal:
  • It helps prevent microbial growth, offering antimicrobial protection in a wide range of applications.
• Eco-Friendly:
  • The water-based nature of the dispersion makes it more environmentally friendly compared to solvent-based dispersions, with fewer harmful chemicals and easier handling.
• Effective Photocatalyst:
  • The photocatalytic properties of ZnO make it useful for environmental applications, such as pollution control and self-cleaning surfaces.
• Versatile:
  • With its multiple benefits, ZnO nanopowder dispersion is adaptable for use in a variety of industries, including healthcare, cosmetics, environmental, and industrial sectors.

5. Handling and Storage:

• Handling:
  • Stir or shake well before use to ensure uniform dispersion of the nanoparticles.
  • Wear protective gloves and goggles to avoid direct contact with the dispersion, particularly when working with high concentrations.
• Storage:
  • Store in a cool, dry place, away from direct sunlight and heat to maintain stability.
  • Do not freeze the dispersion, as it may destabilize the nanoparticles.
• Safety:
  • While ZnO is generally safe, avoid inhaling dust or mist. Always handle the dispersion in a well-ventilated area.

Zinc Oxide Nanopowder Water Dispersion (ZnO, 20 wt%, 50–80 nm) is a highly effective material for a wide range of applications, including UV protection, antimicrobial coatings, photocatalysis, and environmental remediation. With its high surface area, water-based formulation, and versatile properties, this dispersion is ideal for use in sunscreens, coatings, paints, medical applications, and more. Its eco-friendly nature and high reactivity make it a valuable material in many industries.