Structural refinement and photocatalytic activity of Fe-doped anatase TiO2 nanoparticles

► Facile experimental route to synthesize iron-doped anatase titania nanoparticles. ► Decrease in the band gap energy with increase in the iron-content in titania. ► Refined structural data of undoped/doped TiO2 nanoparticles. ► Proper substitution of Ti+4 sites with Fe3+ ions in titania host lattice.