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Removal of Chromium from Aqueous Solution by Thermally Treated Mgal Layered Double Hydroxide

Enkhtur Otgonjargal, Byambasuren Nyamsuren

2017enchromiumadsorptionlayered double hydroxidethermal treatmentenvironmental engineering

Abstract

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MgAl based layered double hydroxide (MgAl-LDH) was utilized as an adsorbent for the removal of chromium oxyanion from aqueous solutions. The objective was to evaluate the efficacy of thermally treated MgAl-LDH in improving chromium adsorption. We synthesized MgAl-LDH using a co-precipitation method and characterized it using X-Ray Diffraction (XRD) and Scanning Electron Microscopy with Energy Dispersive X-ray Spectroscopy (SEM-EDX). The samples were thermally treated at 220°C and 450°C to enhance the material's adsorption capacity. The experiments revealed a marginal difference in chromium adsorption capacities between MgAl-LDH untreated (12.56 mg/g) and MgAl-LDH treated at 220°C (11.01 mg/g). However, the maximum chromium adsorption capacity recorded was 88.07 mg/g at a chromium concentration of 500 g/l for MgAl-LDH treated at 450°C. The study indicates that certain temperatures of thermal treatment retained memory effects within the MgAl-LDH, thereby significantly enhancing chromium removal efficiency. This research provides insights into using thermally treated MgAl-LDH as an effective adsorbent for chromium remediation in wastewater treatment applications.

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Cite This Work

@article{82104759-8aa1-4aae-af67-ddf219e637f5,
  title={Removal of Chromium from Aqueous Solution by Thermally Treated Mgal Layered Double Hydroxide},
  author={Enkhtur Otgonjargal and Byambasuren Nyamsuren},
  year={2017},
  language={en}
}
TY  - JOUR
TI  - Removal of Chromium from Aqueous Solution by Thermally Treated Mgal Layered Double Hydroxide
AU  - Enkhtur Otgonjargal
AU  - Byambasuren Nyamsuren
PY  - 2017
LA  - en
ER  -

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