What Challenges Exist in Using TiO₂ Nanoparticles?
Despite their many advantages, there are challenges associated with the use of TiO₂ nanoparticles. One significant issue is the requirement for UV light to activate their photocatalytic properties, which limits their efficiency under visible light. Researchers are working on doping TiO₂ with other elements to enhance its activity under visible light. Additionally, the potential environmental and health impacts of nanoparticles need to be thoroughly studied to ensure safe usage.