Photocatalysis: Due to its high photocatalytic efficiency, nanoscale TiO2 is employed in
water treatment and
air purification systems to degrade pollutants.
Sunscreens: Nanoscale TiO2 is used in sunscreens as it provides effective
UV protection while remaining transparent on the skin.
Self-Cleaning Surfaces: Coatings containing TiO2 can break down organic materials upon exposure to sunlight, making surfaces
self-cleaning.
Energy Storage: It is used in
lithium-ion batteries to enhance their performance and durability.
Antimicrobial Coatings: Due to its ability to generate reactive oxygen species, nanoscale TiO2 is used in antimicrobial coatings for medical devices and surfaces.
What are the Safety and Environmental Concerns?
While the benefits of nanoscale TiO2 are numerous, there are also
safety concerns associated with its use. Studies have shown that nanoparticles can penetrate biological membranes and may cause
toxicity issues. Additionally, the environmental impact of TiO2 nanoparticles is still under investigation, particularly concerning their persistence and potential to harm aquatic life.
Future Directions
The future of nanoscale TiO2 in nanotechnology looks promising, with ongoing research focusing on enhancing its properties and reducing potential risks. Innovations in
green synthesis methods, as well as comprehensive
toxicological studies, are expected to pave the way for safer and more effective applications.
In summary, titanium dioxide at the nanoscale offers a plethora of advantages that are harnessed across various industries. However, it is crucial to balance these benefits with thorough safety assessments to ensure its responsible use in nanotechnology.
