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Eriochrme Black-T Removal From Aqueous Environment by Surfactant Modified Clay: Equilibrium, Kinetic, Isotherm, and Thermodynamic Studies Publisher



Zeydouni G1 ; Kianizadeh M2 ; Omidi Khaniabadi Y3 ; Nourmoradi H4, 5 ; Esmaeili S6 ; Mohammadi MJ7 ; Rashidi R8
Authors
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Authors Affiliations
  1. 1. Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Science, Tehran, Iran
  2. 2. Department of Environmental Health Engineering, Shahrekord University of Medical Sciences, Shahrekord, Iran
  3. 3. Department of Environmental Health Engineering, Health Care System of Karoon, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
  4. 4. Biotechnology and Medical Plants Research Center, Ilam University of Medical Sciences, Ilam, Iran
  5. 5. Department of Environmental Health Engineering, School of Health, Ilam University of Medical Sciences, Ilam, Iran
  6. 6. Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
  7. 7. Asadabad School of Medical Sciences, Asadabad, Iran
  8. 8. Department of Occupational Health Engineering, Nutrition Health Research Center, School of Health and Nutrition, Lorestan University of Medical Sciences, Khorramabad, Iran

Source: Toxin Reviews Published:2019


Abstract

In this study, the removal of Eriochrome black T (EBT) from aqueous solutions was evaluated by cationic surfactant of hexadecyl trimethyl ammonium bromide (HDTMA)-modified montmorillonite clay (MC). The effects of contact time, pH, adsorbent dosage, EBT concentration, solution ion strength, and temperature were investigated on the EBT removal. HDTMA-MC was also examined by Fourier transformed infrared (FTIR) spectroscopy and X-ray diffractometer (XRD). The results illustrated that the experimental data were well followed by the pseudo-second-order kinetic and Freundlich isotherm models. The results also showed HDTMA-MC can be used as an effective adsorbent for the removal of EBT from aqueous solution. © 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group.