Fabrication of attapulgite/magnetic aminated chitosan composite as efficient and reusable adsorbent for Cr (VI) ions.

ABSTRACT: An efficient composite was constructed based on aminated chitosan (NH₂Cs), attapulgite (ATP) clay and magnetic Fe₃O₄ for adsorptive removal of Cr(VI) ions. The as-fabricated ATP@Fe₃O₄-NH₂Cs composite was characterized by Fourier Transform Infrared Spectroscopy (FTIR), Thermal Gravimetric Analyzer (TGA), Scanning Electron Microscope (SEM), Zeta potential (ZP), Vibrating Sample Magnetometer (VSM), Brunauer-Emmett-Teller method (BET) and X-ray photoelectron spectroscope (XPS). A significant improve in the adsorption profile was established at pH 2 in the order of ATP@Fe₃O₄-NH₂Cs(1:3) > ATP@Fe₃O₄-NH₂Cs(1:1) > ATP@Fe₃O₄-NH₂Cs(3:1) >

SUBMITTER: Eltaweil AS 

PROVIDER: S-EPMC8368087 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature