TiO2 paste is widely used in the production of dye-sensitized solar cells (DSSCs). It serves as a key component in the photoanode, where it provides a high surface area for dye adsorption and facilitates electron transport, enhancing the efficiency of solar energy conversion.

In the cosmetics industry, it is incorporated into sunscreens and skincare products due to its ability to reflect and scatter UV radiation, offering protection against sun damage.

It is also employed in the manufacturing of self-cleaning coatings for glass and other surfaces. When exposed to light, it exhibits photocatalytic properties, breaking down organic pollutants and keeping surfaces clean.

Additionally, TiO2 paste is used in the development of sensors and photocatalysts for environmental applications, such as air and water purification, by degrading harmful contaminants under light exposure.