Fabrication and Characterization of Manganese Ferrite Nanospheres as a Magnetic Adsorbent of Chromium

Abstract

Manganese ferrite nanospheres constructed by nanoparticles were synthesized in high yield via a general, one‐step, and template‐free solvothermal method. The product was characterized by X‐ray diffraction (XRD), scanning electron microscope (SEM), and transmission electron microscopy (TEM). BJH pore‐size distribution shows that the sphere‐like manganese ferrite particle was a porous structure with a narrow pore‐size distribution. The investigation of magnetic property of manganese ferrite nanospheres reveals that the saturation magnetization is high, which showes an excellent ability for magnetic removal of chromium in wastewater.