Preparation of different shaped alpha-Fe2O3 nanoparticles with large particles of iron oxide red

摘要

Using anions (OH-, Cl-, SO42-, NO3- and CH3COOH-) as structure and surface directing agents, alpha-Fe2O3 nanoparticles with quasi cube, parallel hexahedron, irregular sphere, nanosheet and hexagon shapes were successfully prepared by utilizing larger particles of iron oxide red. The results revealed that the shape of the alpha-Fe2O3 nanoparticles had a remarkable effect on the optical and magnetic properties.