Synthesis and characterization of magnetic mesoporous Fe₃O₄@mSiO₂-DODGA nanoparticles for adsorption of 16 rare earth elements.

ABSTRACT: In this study, novel magnetic mesoporous Fe₃O₄@mSiO₂-DODGA nanoparticles were prepared for efficiently adsorbing and recycling REEs. Fe₃O₄@mSiO₂-DODGA was characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), vibrating sample magnetometry (VSM), Fourier transform infrared spectroscopy (FT-IR) and thermogravimetric analysis (TGA). The adsorption behavior of Fe₃O₄@mSiO₂-DODGA was investigated by ICP-OES. The results showed that the content of DODGA in the adsorbent was 367 μmol g^-1. Fe₃O₄@mSiO₂-DODGA exhibited the highest adsorption rates for 15 REEs, except Tm, in a 2 mol L^-1 nitric acid solution. Among t

SUBMITTER: Li J 

PROVIDER: S-EPMC9090902 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature