Molecular Dimensions and Porous Structure of Activated Carbons for Sorption of Xylene and Isooctane

• DOI: 10.1002/ceat.201500675
• Publication Date: 2016-09-13T06:53:18Z
• Authors: Ivana Troppová; Lenka Matějová; Lenka Kuboňová; Tomáš Strašák; Soňa Študentová; Piotr Kustrowski; Lucie Obalová
• Keywords: Physisorption; Porosimetry; Gas pycnometer; Gravimetric analysis

Abstract The sorption of xylene and isooctane was measured by the gravimetric flow method on commercial activated carbons (ACs), namely, virgin reactivated ACs. Nitrogen physisorption, high‐pressure mercury porosimetry, helium pycnometry, iodine number, pH measurement, Raman X‐ray photoelectron spectroscopies were applied for textural, structural, surface characterization equilibrium geometries molecules modeled using density functional theory (DFT) calculations. Their dimensions estimated to be correlated with textural properties ACs reveal effect size selectivity. key factors influencing adsorption capacity chosen both tested volatile organic compounds (VOCs) found mesopore area basicity.