Efficient removal of chromate ions from aqueous solution using a highly cost-effective ferric coordinated [3-(2-aminoethylamino)propyl]trimethoxysilane-MCM-41 adsorbent.

ABSTRACT: The present investigation involves synthesis and characterization of MCM-41-AEAPTMS-Fe(iii)Cl using coordinated Fe(iii) on MCM-41-AEAPTMS for efficient removal of hazardous Cr(vi) ions from aqueous solution. The adsorbent MCM-41-AEAPTMS-Fe(iii)Cl was characterized using small-angle X-ray diffraction (SAX), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), Fourier-transform infrared (FT-IR) and Brunauer-Emmett-Teller (BET) surface analyzer techniques. The BET surface area was found to be 87.598 m² g^-1. The MCM-41-AEAPTMS-Fe(iii)Cl effectively adsorbs Cr(vi) with an adsorption capacity acquiring the maximum value of 84.9 mg g^-1 at pH 3 at 298 K. The data followed pseudo-second-order kinetics and obeyed

SUBMITTER: Madri RK 

PROVIDER: S-EPMC8695815 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature