Titanium Oxide Nanopowder Water Dispersion (TiO2, Rutile, 15 wt%, 5-15 nm)

Titanium Oxide Nanopowder Water Dispersion (TiO₂, Rutile, 15 wt%, 5–15 nm) is a water-based suspension of titanium dioxide (TiO₂) nanoparticles in the rutile crystalline phase. Here’s an in-depth explanation:

1. Composition:

• Titanium Dioxide (TiO₂):
  • A widely used metal oxide with excellent photocatalytic, optical, and chemical stability properties.
• Rutile Phase:
  • One of the crystalline forms of TiO₂, characterized by:
    • Higher refractive index.
    • Excellent thermal and chemical stability.
    • Lower photocatalytic activity compared to the anatase phase, making it less reactive in some conditions.
• Nanoparticles (5–15 nm):
  • Ultra-fine particles with an average size range of 5 to 15 nanometers.
  • Nano size ensures a high surface area and unique optical properties.
• 15 wt%:
  • The dispersion contains 15% by weight of TiO₂ nanoparticles, with the remaining 85% being water.
• Water-Based Dispersion:
  • Uniformly suspended nanoparticles in water for easy application.

2. Key Properties:

• High Refractive Index:
  • Provides excellent light scattering and UV shielding properties.
• Chemical Stability:
  • Inert and resistant to corrosion and degradation.
• Hydrophilic Surface:
  • Disperses well in aqueous systems.
• Photocatalytic Activity:
  • Rutile TiO₂ has lower photocatalytic activity than anatase, reducing oxidative side effects in certain applications.
• Thermal Stability:
  • Stable at high temperatures, ideal for heat-resistant coatings and materials.
• Uniform Dispersion:
  • Ensures nanoparticles are evenly distributed without agglomeration.

3. Applications:

• Coatings:
  • Used in protective, decorative, or UV-resistant coatings for surfaces like glass, plastics, and metals.
• Sunscreens and Cosmetics:
  • Provides UV protection due to its high refractive index and light-blocking properties.
• Photocatalysis:
  • Suitable for applications like self-cleaning surfaces, air purification, and water treatment.
• Pigments:
  • Adds whiteness, opacity, and brightness in paints, inks, and plastics.
• Composites:
  • Enhances mechanical, thermal, and optical properties in polymer and ceramic composites.
• Energy:
  • Used in dye-sensitized solar cells and other energy-harvesting applications.
• Electronics:
  • Serves as a dielectric material or optical layer in microelectronics and sensors.

4. Advantages:

• Ready-to-Use:
  • Pre-dispersed in water, simplifying application and reducing preparation steps.
• Environmentally Friendly:
  • Water-based formulation avoids hazardous organic solvents.
• Nano-Scale Benefits:
  • High surface area and enhanced optical performance.
• Versatile:
  • Suitable for a wide range of industrial, environmental, and cosmetic applications.
• Stable Rutile Phase:
  • Offers high stability and durability under thermal and UV exposure.

5. Handling and Storage:

• Handling:
  • Shake or stir thoroughly before use to ensure uniform nanoparticle distribution.
  • Use gloves and protective equipment to avoid skin or eye contact.
• Storage:
  • Store in a cool, dry place away from direct sunlight.
  • Avoid freezing or overheating, as these conditions can destabilize the dispersion.
• Safety:
  • TiO₂ is generally considered safe, but avoid inhalation of aerosols or mist and prolonged skin exposure.

This TiO₂ water dispersion is a versatile material ideal for applications requiring stability, UV protection, or enhanced optical properties. The rutile phase ensures durability and reduced photocatalytic activity, making it suitable for a broad range of uses in coatings, cosmetics, and functional materials.