Contribution to the textural characterisation of Filtrasorb 400 and other commercial activated carbons commonly used for water treatment

    Authors

    C. Morlay;J. P. Joly

    Comments

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    Abbreviated Journal Title

    J. Porous Mat.

    Keywords

    Filtrasorb 400; Activated carbon; Mercury porosimetry; BET; Alpha-S; DR; DFT; PORE-SIZE DISTRIBUTION; SUPERHIGH SURFACE-AREA; PHASE ADSORPTION; LIQUID-PHASE; REACTIVE DYES; POROSITY; EQUILIBRIUM; ISOTHERMS; NITROGEN; REMOVAL; Chemistry, Applied; Chemistry, Physical; Materials Science, ; Multidisciplinary

    Abstract

    The textural characteristics of three commercial activated carbons, Filtrasorb 400 (F400), Industrial React High Affinity and Picabiol, commonly used in water treatment, are reinvestigated. Nitrogen physisorption isotherms are determined in the range P/P (0) = [4 x 10(-7)-0.998] and processed using BET, alpha(S) (Sing), Dubinin-Radushkevich and Density Functional Theory methods. In addition, fractal dimensions are determined by the Frenkel-Halsey-Hill procedure. Since F400 is often considered as a reference material in studies on the adsorption of solutes in aqueous solutions, a review of the textural characteristics of this carbon is carried out. The results obtained in this work using the different methods are consistent and a critical crossed comparison of these results allows discussing the limitations of the methods used. In particular, the impact of the P/P (0) range considered on S (BET) value is examined. In addition, the accuracy of the BET specific surface area is assessed in the light of information from recent literature.

    Journal Title

    Journal of Porous Materials

    Volume

    17

    Issue/Number

    5

    Publication Date

    1-1-2010

    Document Type

    Article

    Language

    English

    First Page

    535

    Last Page

    543

    WOS Identifier

    WOS:000281542800004

    ISSN

    1380-2224

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