The use of Activated Carbon of Basic Properties for Treatment of 2-Chlorophenol

Amjad Hussein El-Sheikh, Alan P Newman, Haffid Al-Deffaee, Sukvinder Phull, Danial Lynch

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    12 Citations (Scopus)


    A range of basic activated carbons was prepared from single
    cultivar Jordanian olive stones and their chemical composition, textural properties and surface groups investigated. One of the samples was de-ashed and then oxidized using concentrated nitric acid to study the effects of inorganic content and surface oxidation on its adsorption capacity towards 2 chlorophenol (2-CP).
    Commercial samples with combined acidic and basic properties were also tested
    with respect to 2-CP adsorption.
    An attempt was made to correlate the total basicity with the adsorption constants of the Langmuir equation and with other properties. These properties
    included burn-off, apparent surface area, micropore volume, total pore volume
    and Methylene Blue (MB) adsorption surface area. The total basicity had no
    relationship with any adsorption parameter. However, total basicity was found to
    have a relationship with the total pore volume, the micropore volume, MB
    adsorption and burn-off. The BET surface area showed only a very weak relationship with the total basicity. Burn-off had a relationship with the relative
    affinity of the adsorbate and the surface and Langmuir constants, but not with
    the adsorption capacity. De-ashing the sample using HF/HCl decreased the total
    basicity and MB adsorption but increased the total acidity and the capacity
    towards 2-CP uptake. The mineral contents of both prepared and commercial
    samples were analyzed and found to play no role in the adsorption of 2-CP.
    Original languageEnglish
    Pages (from-to)451-465
    Number of pages15
    JournalAdsorption Science and Technology
    Issue number6
    Publication statusPublished - Jul 2004


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