A new strategy for the preparation of porous zinc ferrite nanorods with subsequently light-driven photocatalytic activity

摘要

Porous zinc ferrite (ZnFe_2O_4) nanorods have been synthesized by the thermal decomposition of ZnFe_2(C_2O_4)_3 nanorods precursor, which was prepared by template-, surfactant-free solvothermal method. The morphology and structure of the obtained ZnFe_2(C_2O_4)_3 nanorods precursor and porous ZnFe_2O_4 nanorods were characterized by X-ray powder diffraction, transmission electron microscopy, field emission scanning electron microscopy and high-resolution transmission electron microscopy. The results indicated that the as-synthesized ZnFe_2O_4 retained the precursor morphology of ID nanorods with diameters of 100-200 nm and lengths of several micrometers and plenty of nanoparticles were interconnected to each other to form porous nanorods. The as-prepared ZnFe_2O_4 nanorods as a kind of subsequently light-driven photocatalyst exhibited good photocatalytic decomposition activity for methylene blue (MB).