Synthesis of CoFe₂O₄@SiO₂-NH₂ and its application in adsorption of trace lead.

ABSTRACT: In this work, an amine functionalized CoFe₂O₄ magnetic nanocomposite material CoFe₂O₄@SiO₂-NH₂ was prepared successfully by modifying coated-CoFe₂O₄@SiO₂ magnetic nanoparticles with 3-aminopropyltriethoxysilane (APTES) and became an efficient adsorbent for the separation and analysis of trace lead in water. The CoFe₂O₄@SiO₂-NH₂ magnetic nanoparticles were characterized using SEM, TEM, XRD, FTIR, VSM and BET techniques. Then, the adsorption mechanism was preliminarily investigated through ZETA, XPS, and adsorption kinetic experiments. The adsorption process was fitted by pseudo-second-order kinetics and a Langmuir isotherm model. The main adsorption

SUBMITTER: Zeng Y 

PROVIDER: S-EPMC10759034 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature