Equilibrium Dynamics of m-Xylene Removal from Aqueous Solution by Organoclay

  • Michelle Abonele Apemiye
  • Chidi ObiEmail author
  • Ifedi Peter Okoye
Research Paper


In this study, calcium bentonite (Ca-bentonite) clay was beneficiated with sodium carbonate to produce sodium bentonite (Na-B) clay and subsequently modified using hexadecyltrimethylammonium bromide (HDTMABr) to obtain organoclay (OC). Both Na-B and OC were used for the removal of m-xylene from aqueous solution. The vibrational bands of the adsorbents were evaluated using Fourier transform infrared (FTIR) spectroscopy. The sorption result obtained shows the average percentage removal of m-xylene to be 81.10% for OC and 40.20% for Na-B. The monolayer sorption capacity (qm) for the organoclay and the sodium bentonite was found to be 30.30 and 12.99 mg g−1, respectively. The equilibrium data fitted well with the Freundlich isotherm model equation. The FTIR spectra confirm the intercalation of quaternary ammonium compound into the interlayer of the organoclay. This study shows that organoclays have become successful as adsorbents for oil refinery, environmental industries and petrochemical industries in the removal of effluents from the environment.


Sodium bentonite Organoclay Adsorption Hexadecyltrimethylammonium bromide m-Xylene 



The authors sincerely appreciate FUGRO Nig. Ltd., Rofnel Nig. Ltd., and the Department of Pure and Industrial Chemistry, University of Port Harcourt for their laboratory equipment used during this research work.


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Copyright information

© Shiraz University 2017

Authors and Affiliations

  • Michelle Abonele Apemiye
    • 1
  • Chidi Obi
    • 1
    Email author
  • Ifedi Peter Okoye
    • 1
  1. 1.Department of Pure and Industrial Chemistry, Faculty of ScienceUniversity of Port HarcourtPort HarcourtNigeria

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