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  • Chem Sci Trans., 2016, 5(3),  pp 661-673  

    DOI:10.7598/cst2016.1247

    Research Article

    Optimisation of Catechol Removal from Aqueous Solution by Adsorption on Activated Carbon from Corn Cobs and Coffee Husk

  • PATRICIA NGUEMJOM NONO, THEOPHILE KAMGAING*, DONALD RAOUL TCHUIFON TCHUIFON, and SOLOMON ANAGHO GABCHE
  • Laboratory of Noxious Chemistry and Environmental Engineering, Department of Chemistry, Faculty of Science, University of Dschang, P.B Box 67, Dschang, Cameroon
    Department of Chemistry, University of Bamenda, P.O. Box, 39, Bamenda, Cameroon
  • Abstract

    Activated carbons prepared by chemical activation of corn cobs and coffee husks, using H3PO4 were characterized for its moisture content, bulk density, pH of zero point charge (pHpcz) and pH. Batch adsorption of catechol from aqueous solution using the characterized activated carbons was investigated. The adsorption properties were studied in terms of pH, equilibrium time, initial concentration (C0: 10-110 mg/L) and adsorbent mass. The experimental data fitted well the pseudo second order kinetic model while the equilibrium isotherm data fitted the Langmuir model. The results indicate that activated carbons obtained from the chemical activation of corn cobs and coffee husks are suitable adsorbents for the removal of catechol from aqueous solution.

    Keywords

    Adsorption, Corncobs, Coffee husks, Activated carbon, Catechol

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