Superparamagnetic Spinel-Ferrite Nano-Adsorbents Adapted for Hg²⁺, Dy³⁺, Tb³⁺ Removal/Recycling: Synthesis, Characterization, and Assessment of Toxicity.

ABSTRACT: In the present work, superparamagnetic adsorbents based on 3-aminopropyltrimethoxy silane (APTMS)-coated maghemite (γFe₂O₃@SiO₂-NH₂) and cobalt ferrite (CoFe₂O₄@SiO₂-NH₂) nanoparticles were prepared and characterized using transmission-electron microscopy (TEM/HRTEM/EDXS), Fourier-transform infrared spectroscopy (FTIR), specific surface-area measurements (BET), zeta potential (ζ) measurements, thermogravimetric analysis (TGA), and magnetometry (VSM). The adsorption of Dy³⁺, Tb³⁺, and Hg²⁺ ions onto adsorbent surfaces in model salt solutions was tested. The adsorption was evaluated in terms of adsorption efficiency (%), adsorption capacity (mg/g), and desorption efficienc

SUBMITTER: Allwin Mabes Raj AFP 

PROVIDER: S-EPMC10299025 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature