Several methods are used to synthesize nano-sized titanium dioxide, including:
- Sol-Gel Method: This involves the transition of a system from a liquid "sol" into a solid "gel" phase to produce nanoparticles. - Hydrothermal Synthesis: This method uses high-pressure and high-temperature conditions to grow nanoparticles in a controlled manner. - Chemical Vapor Deposition (CVD): In this process, chemical reactions occur in the vapor phase to deposit thin films of TiO2 on substrates. - Mechanical Milling: This involves grinding bulk TiO2 into nanoscale particles.
