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Article Dans Une Revue International Journal of Chemical Reactor Engineering Année : 2018

Cationic Surfactant-modified Clay as an Adsorbent for the Removal of Synthetic Dyes from Aqueous Solutions

Hamed Biglari
  • Fonction : Auteur
Yusef Omidi Khaniabadi
  • Fonction : Auteur
Heshmatollah Nourmoradi
  • Fonction : Auteur
Mohammad Khoshgoftar
  • Fonction : Auteur
Abdeltif Amrane
Mehdi Vosoughi
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Shirin Esmaeili
  • Fonction : Auteur
Rouhollah Heydari
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Mohammad Javad Mohammadi
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Rajab Rashidi
  • Fonction : Auteur correspondant
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Résumé

In this study, the potential of hexadecyl trimethyl ammonium bromide modified montmorillonite (HDTMA-Mt) to remove the synthetic dyes Alizarin Red S (ARS) and Bromocresol Green (BCG) from aqueous media was assessed. The effect of different factors including surfactant loading rate onto the clay, contact time, pH, adsorbent dosage and dye concentrations, on the removal of ARS and BCG in batch systems were investigated. The adsorbent was characterized by means of scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and X-ray diffractometry (XRD). The equilibrium time for ARS and BCG was reached at 40 and 20 min, respectively, under optimized conditions (i.e. pH = 3, adsorbent dosage=1 g/L, surfactant loading rate onto the clay 70% of the cation exchange capacity (CEC) for ARS and 120% of the CEC for BCG, ARS concentration 50 mg/L and BCG concentration 500 mg/L). The adsorption rate of both dyes fitted the pseudo-second-order kinetic model and the equilibrium data was described by the Freundlich isotherm equation. The maximum monolayer adsorption capacities were equal to 666.6 and 1250 mg/g for ARS and BCG, respectively. Therefore, the HDTMA-Mt can be considered as an effective adsorbent for the removal of ARS and BCG from aqueous solutions.

Domaines

Chimie
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Dates et versions

hal-01807085 , version 1 (04-06-2018)

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Citer

Hamed Biglari, Susana Rodriguezicouto, Yusef Omidi Khaniabadi, Heshmatollah Nourmoradi, Mohammad Khoshgoftar, et al.. Cationic Surfactant-modified Clay as an Adsorbent for the Removal of Synthetic Dyes from Aqueous Solutions. International Journal of Chemical Reactor Engineering, 2018, 16 (5), ⟨10.1515/ijcre-2017-0064⟩. ⟨hal-01807085⟩
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