2025 Inorganic Sunscreen Titanium Dioxide Technology Research Update

In 2025, the technology research of titanium dioxide as an inorganic sunscreen is advancing on multiple fronts.

Titanium dioxide works by absorbing and scattering ultraviolet light. When UV light with a wavelength less than 400nm shines on it, electrons in the valence band absorb the UV and are excited to the conduction band, generating electron-hole pairs3. This process enables it to effectively block UV rays and protect the skin.

One key area of research is surface treatment. Through surface coating, they have addressed issues such as dispersibility, light stability, and compatibility. This makes the product highly dispersible in cosmetic formulations, able to effectively absorb UV rays and increase the SPF value.

Another aspect is the preparation method. The sol - gel method is widely used for its advantages of low reaction temperature, simple process, low cost, and uniform particle distribution. Nalco, one of the world's largest titanium dioxide producers, may adopt advanced preparation technologies like this to ensure the high quality of their titanium dioxide products.

In addition, the combination of titanium dioxide with other materials is also a hot topic. Some manufacturers are trying to combine titanium dioxide with organic polymers to create composite materials with better sunscreen performance and application properties.

Overall, the technology of titanium dioxide in the sunscreen industry is constantly evolving, bringing more effective and safe sunscreen products to consumers.