Table of Contents
ISRN Nanotechnology
Volume 2013, Article ID 525697, 8 pages
http://dx.doi.org/10.1155/2013/525697
Research Article

Catalytic Sorption of (Chloro)Benzene and Naphthalene in Aqueous Solutions by Granular Activated Carbon Supported Bimetallic Iron and Palladium Nanoparticles

1Pegasus Technical Services, Inc., 46 E. Hollister Street, Cincinnati, OH 45219, USA
2National Risk Management Research Laboratory, U.S. Environmental Protection Agency, 26 West M. L. K. Drive, Cincinnati, OH 45268, USA
3Civil, Architectural, and Environmental Engineering Department, University of Texas, Austin, TX 78713, USA
4Tetra Tech, Inc., 250 West Court Street, Suite 200W, Cincinnati, OH 45202, USA

Received 21 March 2013; Accepted 11 April 2013

Academic Editors: J. He, D. K. Sarker, and D. Tsoukalas

Copyright © 2013 Jurate Virkutyte et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Adsorption of benzene, chlorobenzene, and naphthalene on commercially available granular activated carbon (GAC) and bimetallic nanoparticle (Fe/Pd) loaded GAC was investigated for the potential use in active capping of contaminated sediments. Freundlich and Langmuir linearizations were both applied to this data, and it was found that the Freundlich model most closely fits the experimental data. Based on Freundlich parameters, the effective partitioning coefficients (L kg−1) taking into account and were calculated to be and for benzene and chlorobenzene, respectively, on GAC. In addition, effective partitioning coefficients (L kg−1) were 650, 5640, and for benzene, chlorobenzene, and naphthalene, respectively, on Fe/Pd/GAC. Values of were 6.11, 7.11, and 7.54 for benzene, chlorobenzene, and naphthalene, respectively, for GAC and 4.53, 5.47, and 5.22, respectively, for Fe/Pd/GAC.