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Moghaddam, H., Elhami, S. (2017). Removal of Mercury using Dibutyl-Disulfide Montmorillonite: Characterization of Adsorbent, Optimization, Isotherm, Kinetic and Real Samples Study. Journal of Applied Chemical Research, 11(4), 86-96.
Hadi Moghaddam; Shahla Elhami. "Removal of Mercury using Dibutyl-Disulfide Montmorillonite: Characterization of Adsorbent, Optimization, Isotherm, Kinetic and Real Samples Study". Journal of Applied Chemical Research, 11, 4, 2017, 86-96.
Moghaddam, H., Elhami, S. (2017). 'Removal of Mercury using Dibutyl-Disulfide Montmorillonite: Characterization of Adsorbent, Optimization, Isotherm, Kinetic and Real Samples Study', Journal of Applied Chemical Research, 11(4), pp. 86-96.
Moghaddam, H., Elhami, S. Removal of Mercury using Dibutyl-Disulfide Montmorillonite: Characterization of Adsorbent, Optimization, Isotherm, Kinetic and Real Samples Study. Journal of Applied Chemical Research, 2017; 11(4): 86-96.

Removal of Mercury using Dibutyl-Disulfide Montmorillonite: Characterization of Adsorbent, Optimization, Isotherm, Kinetic and Real Samples Study

Article 8, Volume 11, Issue 4, Autumn 2017, Page 86-96  XML PDF (435.66 K)
Document Type: Research Paper
Authors
Hadi Moghaddam1, 2; Shahla Elhami* 2
1Department of Chemistry, Khouzestan Science and Research Branch, Islamic Azad University, Ahvaz, Iran
2Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
Abstract
Dibutyl-Disulfide Montmorillonite (DD-MMT) was synthesized successfully and found to be
an excellent adsorbent for Hg(II) removal. The fourier transform infrared spectroscopy (FTIR),
x-ray diffraction spectrum (XRD) and scanning electron microscopy (SEM) were used to
characterize properties of the absorbent. The effects of several parameters such as solution
pH, adsorbent dose, contact time and the initial concentration on the Hg(II) adsorption onto
the composite were investigated. DD-MMT had a high capacity for Hg(II) removal that
removed Hg(II) (10-100 mg/L) more than 95 % with 2 g/L of adsorbent in only 10 min. The
adsorption equilibrium data fitted well to Langmuir isotherm. The maximum adsorption
capacity of Hg(II) ions was 312.5 mg/g that was bigger than most of previous methods.
Adsorption kinetics of Hg (II) on DD-MMT followed the pseudo-second-order kinetic model.
In addition, the method has the advantages of environmental friendly, rapidity, simplicity,
and low cost for Hg(II) removal.

Keywords
Adsorption; Dibutyl-Disulfide; Mercury (II); montmorillonite
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