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Nano Titanium Oxide

Updated: 2026-07-15

Overview

Nano Titanium Oxide (TiO2) is a nanoscale form of titanium dioxide, widely recognized for its photocatalytic properties and ability to block ultraviolet (UV) radiation. Due to its small particle size (typically 1-100 nanometers), it exhibits unique physical and chemical characteristics compared to its bulk counterpart. These properties make it highly valuable in industries such as coatings, cosmetics, and environmental technology. The material is produced through various methods, including sol-gel processes, hydrothermal synthesis, and chemical vapor deposition. The choice of production method affects the particle size, crystallinity, and surface properties, which in turn influence its performance in different applications.

Physical and Chemical Properties

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Nano Titanium Oxide is known for its high refractive index, strong UV absorption, and excellent chemical stability. These properties make it an ideal additive for sunscreens, where it provides broad-spectrum UV protection without whitening effects. Its photocatalytic activity, particularly in the anatase crystalline form, enables it to break down organic pollutants under UV light, making it useful for self-cleaning surfaces and air purification systems. The material is also thermally stable and resistant to most acids and bases, though prolonged exposure to strong acids or alkalis can degrade its performance. Its insolubility in water ensures longevity in aqueous applications, while its surface can be modified to enhance compatibility with various matrices.

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Main Applications

In the coatings industry, Nano Titanium Oxide is used to create self-cleaning and anti-fogging surfaces. Its photocatalytic properties allow it to decompose organic dirt and pollutants, reducing maintenance costs for buildings and vehicles. In cosmetics, it serves as a safe and effective UV filter in sunscreens and skincare products, offering protection without the risk of skin irritation. Environmental applications include water and air purification systems, where it helps degrade harmful contaminants. Additionally, it is employed in the production of dye-sensitized solar cells and as a white pigment in high-performance paints and plastics. Its versatility and safety profile make it a preferred choice across multiple sectors.

Safety and Storage

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While Nano Titanium Oxide is generally considered safe, precautions should be taken to minimize exposure to airborne particles, which can pose inhalation risks. Proper handling includes using dust masks, gloves, and eye protection in industrial settings. Storage should be in sealed containers away from moisture and direct sunlight to prevent agglomeration and preserve its photocatalytic activity. Regulatory bodies such as the FDA and EU have approved its use in cosmetics and food contact materials, but specific grades must meet purity and particle size requirements. Always refer to the material safety data sheet (MSDS) for detailed handling and disposal guidelines.

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B2B Procurement Guide

When procuring Nano Titanium Oxide, consider the particle size distribution, crystalline phase (anatase, rutile, or mixed), and surface treatment. These factors significantly impact performance in end-use applications. For photocatalytic uses, anatase is preferred, while rutile is better for UV blocking. Surface modifications like silane coating can enhance dispersion in polymers or liquids. Suppliers should provide certificates of analysis (CoA) detailing purity, particle size, and other critical parameters. Bulk procurement may offer cost advantages, but ensure storage conditions are adequate to maintain product quality. For reference, prices typically range from $20 to $100 per kg, depending on specifications and order volume.

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