Comparison of BEA, USY and ZSM-5 for the quantitative extraction of polycyclic aromatic hydrocarbons from water samples

    Authors

    A. A. Costa; W. B. Wilson; H. Y. Wang; A. D. Campiglia; J. A. Dias;S. C. L. Dias

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Microporous Mesoporous Mat.

    Keywords

    Zeolite; Water; Extraction; Polycyclic aromatic hydrocarbons; Adsorption; LOW-COST ADSORBENTS; MOLECULARLY IMPRINTED POLYMER; GRANULAR ACTIVATED; CARBON; LAYERED DOUBLE HYDROXIDES; HEAVY-METALS; ZEOLITE-BETA; WASTE-WATER; ADSORPTION; REMOVAL; SORPTION; Chemistry, Applied; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary

    Abstract

    The physicochemical properties of three commercial zeolites - namely BEA, USY and ZSM-5 - are compared for the water removal of 15 PAHs included in the US EPA priority pollutants list. The best percentages of extraction were obtained with BEA and varied from 85.2 +/- 1.7% (benzo[g,h,i]perylene) to 99.6 +/- 1.1% (pyrene). The correlation of physicochemical properties to the percentages of extraction suggests that the predominant factor for a successful extracting performance is the adsorption of PAHs to the external surface of the extracting material. This process is facilitated by relatively large total pore volumes, large average pore diameters and a homogeneous distribution of Lewis acid sites. The presence of the latter enhances extraction performance via pi-electron interactions with the aromatic rings of the PAH. (C) 2011 Published by Elsevier Inc.

    Journal Title

    Microporous and Mesoporous Materials

    Volume

    149

    Issue/Number

    1

    Publication Date

    1-1-2012

    Document Type

    Article

    Language

    English

    First Page

    186

    Last Page

    192

    WOS Identifier

    WOS:000296933200025

    ISSN

    1387-1811

    Share

    COinS