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Article Dans Une Revue Journal of Industrial and Engineering Chemistry Année : 2013

Uptake of Reactive Black 5 by pumice and walnut activated carbon: Chemistry and adsorption mechanisms

Susana Rodriguez-Couto
  • Fonction : Auteur
Abdeltif Amrane
  • Fonction : Auteur
  • PersonId : 945904
Alaa Hawari
  • Fonction : Auteur
Mohammad A. Al-Ghouti
  • Fonction : Auteur correspondant
  • PersonId : 958143

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Résumé

The potential of using pumice and walnut wood activated carbon as low-cost adsorbents for the removal of the diazo dye Reactive Black 5 (RB5) from aqueous solutions was investigated. The Langmuir isotherm fit to the data specified the presence of two different natures of adsorption sites with different binding energies on the AC-W surface. Kinetic modelling showed that the adsorption behaviour and mechanism of RB5 for both adsorbents is believed to happen via surface adsorption followed by diffusion into the pores of the AC-W and pumice. The main adsorption mechanisms are hydrogen bonding, electrostatic bonding and n-π interactions.
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Dates et versions

hal-01019857 , version 1 (07-07-2014)

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Citer

Behzad Heibati, Susana Rodriguez-Couto, Abdeltif Amrane, Mohd. Rafatullah, Alaa Hawari, et al.. Uptake of Reactive Black 5 by pumice and walnut activated carbon: Chemistry and adsorption mechanisms. Journal of Industrial and Engineering Chemistry, 2013, 20 (5), pp.2939-2947. ⟨10.1016/j.jiec.2013.10.063⟩. ⟨hal-01019857⟩
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