Zinc Oxide Nanopowder Water Dispersion (ZnO, 20 wt%, 30–40 nm) is a water-based suspension containing zinc oxide nanoparticles with a particle size range of 30–40 nanometers and a concentration of 20% by weight of zinc oxide. This formulation combines the beneficial properties of zinc oxide (ZnO) nanoparticles, including their UV-blocking, antimicrobial, and photocatalytic characteristics, with the convenience and eco-friendliness of a water-based dispersion. Below is an in-depth breakdown of its features:
1. Composition:
- Zinc Oxide (ZnO):
- Zinc oxide is a widely used metal oxide known for its ability to absorb ultraviolet (UV) light, its antimicrobial properties, and its photocatalytic activity. It is also safe and non-toxic, making it suitable for a variety of applications.
- Particle Size (30–40 nm):
- The particle size of 30–40 nanometers allows for a high surface area, which is essential for enhanced photocatalytic and antimicrobial activity. It also ensures better integration into formulations, making the material more effective in various applications.
- 20 wt% Concentration:
- The dispersion contains 20% zinc oxide by weight, which gives a moderate level of concentration, allowing for efficient performance while still being manageable for integration into systems.
- Water-Based Dispersion:
- This formulation is in a water-based suspension, making it easy to use in water-soluble products, more environmentally friendly, and safer compared to solvent-based alternatives.
2. Key Properties:
- UV Absorption:
- Zinc oxide is known for its excellent ability to absorb both UVA and UVB radiation, making it a valuable ingredient in sunscreen formulations and UV-protective coatings.
- Antimicrobial Activity:
- ZnO nanoparticles exhibit antimicrobial properties, which help prevent the growth of bacteria, fungi, and viruses. This makes it useful for medical, textile, and food-related applications.
- Photocatalytic Properties:
- Zinc oxide is an effective photocatalyst, capable of breaking down organic pollutants and harmful substances under UV light. This makes it useful in environmental applications such as air and water purification.
- High Surface Area:
- The 30–40 nm nanoparticle size increases the surface area of ZnO, enhancing its reactivity, which is important for photocatalysis and antimicrobial action.
- Hydrophilic:
- Being water-based, the dispersion is compatible with aqueous systems, ensuring easy handling and integration into other water-based formulations without the need for additional dispersing agents.
3. Applications:
- UV Protection:
- Sunscreens: Zinc oxide is commonly used in sunscreens for its broad-spectrum UV protection, absorbing both UVA and UVB rays to prevent skin damage.
- Cosmetic Products: It is often found in skincare products to protect against UV radiation and to reduce irritation and inflammation.
- Coatings: It is used in coatings, paints, and other outdoor applications for its UV-blocking properties to protect materials from degradation caused by sunlight.
- Antimicrobial Applications:
- Medical Textiles: Used in wound dressings, bandages, and other medical fabrics to reduce the risk of infection by preventing bacterial growth.
- Surface Coatings: Applied to surfaces to create antibacterial and antifungal coatings, ideal for healthcare and food-related industries.
- Environmental Remediation (Photocatalysis):
- Air and Water Purification: The photocatalytic properties of ZnO make it useful for degrading organic pollutants, harmful chemicals, and toxins in both water and air.
- Self-Cleaning Surfaces: Used in self-cleaning technologies to break down dirt and organic contaminants when exposed to UV light.
- Pigments and Paints:
- Zinc oxide provides opacity and is commonly used as a white pigment in paints, plastics, and inks. It also improves the durability and weather resistance of paints and coatings.
- Rubber and Plastics:
- Used as an activator and stabilizer in the production of rubber and plastics, enhancing their durability and resistance to degradation.
4. Advantages:
- Broad UV Protection:
- Offers effective UV protection by blocking both UVA and UVB rays, making it suitable for sunscreen and UV-resistant coatings.
- Antibacterial and Antifungal Properties:
- Helps prevent microbial growth, making it useful in medical, hygienic, and protective applications.
- Effective Photocatalytic Action:
- Its photocatalytic properties allow for the breakdown of pollutants and harmful substances, which is useful for environmental protection and self-cleaning surfaces.
- Eco-Friendly:
- The water-based nature of the dispersion makes it safer for the environment and easier to handle compared to solvent-based systems.
- High Reactivity:
- The small nanoparticle size (30–40 nm) increases the material’s reactivity, which enhances its performance in UV protection, photocatalysis, and antimicrobial applications.
5. Handling and Storage:
- Handling:
- Shake or stir the dispersion before use to ensure uniformity.
- Wear gloves and goggles to avoid direct contact, especially when working with concentrated dispersions.
- Storage:
- Store the dispersion in a cool, dry place away from direct sunlight and heat to maintain its stability.
- Do not freeze the dispersion, as it may cause the particles to aggregate or destabilize.
- Safety:
- Although ZnO is generally safe, avoid inhaling the mist or direct contact with the eyes and skin. Always work in a well-ventilated area.
Zinc Oxide Nanopowder Water Dispersion (ZnO, 20 wt%, 30–40 nm) is a highly effective material for a wide variety of applications, including UV protection, antimicrobial treatments, environmental remediation, and photocatalysis. Its moderate concentration (20 wt%), small particle size (30–40 nm), and water-based formulation make it suitable for use in sunscreens, coatings, medical textiles, air and water purification systems, and more. The dispersion offers enhanced reactivity, stability, and environmental compatibility, making it a versatile and eco-friendly material for industrial and consumer products.
| Measurement (ml) | 100 ml, 500 ml, 1000 ml |
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