Synthesis of irondoped TiO nanoparticles by ballmilling
2 nanoparticles were prepared by ball milling of TiO 2 powders (nanometer size) in a highenergy Planetary Ball Mill PM 400/2 (RETSCH, Germany) in the presence of ne Fe powder. Milling was done at room temperature in a polytetrauoroethylene (PTFE) vial (volume about 35 cm3) using ten hardened steel balls with 10 mm of diameter, keeping