Removal of Cadmium from Polluted Water Using Layered Double Hydroxides as Effective Adsorbents

Dinamani Muthaiah¹

Section:Research Paper, Product Type: Journal-Paper
Vol.7 , Issue.1 , pp.23-26, Feb-2020

Online published on Feb 28, 2020

Copyright © Dinamani Muthaiah . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
Layered double hydroxides (LDHs) are layered materials containing a positively charged layer and exchangeable anions in the interlayer. In this study, LDHs intercalated with chelating agents were synthesized by anion exchange reaction. The materials synthesized in this work were characterized by chemical analysis, Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and powder X-ray diffraction (XRD). Adsorption experiments from aqueous solutions containing known amounts of some heavy metallic ions onto the adsorbent were explored in a batch system. The amount of metallic ions adsorbed by LDHs intercalated with EDTA and LDHs without EDTA were determined by and atomic absorption spectrometry (AAS). In order to examine the adsorption capacity of LDHs intercalated with chelating agents, the adsorption experiment was investigated under the optimum condition.

Key-Words / Index Term :
Layered double hydroxides, Ion exchange, Chelating agents, Sorbents, Cadmium contamination

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