2024-03-29T13:18:07Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/109002018-11-16T07:48:17Zcom_10261_84com_10261_5col_10261_337
2009-02-23T13:28:38Z
urn:hdl:10261/10900
Removal of naphthalene from aqueous solution on chemically modified activated carbons
Ovín Ania, María Concepción
Cabal Álvarez, Belén
Pevida García, Covadonga
Arenillas de la Puente, Ana
Parra Soto, José Bernardo
Rubiera González, Fernando
Pis Martínez, José Juan
PAH
Adsorption
Liquid phase
Activated carbon
8 pages, 6 figures, 3 tables.-- PMID: 17126375 [PubMed].-- Available online on Nov 27, 2006.
The aim of this work was to correlate the textural and chemical features of carbonaceous adsorbents with the adsorption capacity of naphthalene from aqueous phase, at the concentration in which this compound is usually found in wastewater from coke ovens. The study reveals that the adsorption capacity in different carbon materials depends not only on the textural characteristics of the material but also on the functionalities of the activated carbons. The micropores of the adsorbents, particularly those of narrower diameter, were found to be active sites for the retention of naphthalene. In contrast, the modification of the surface chemistry of the carbon materials led to a decrease in the adsorption capacities. Dispersive forces play an important role, and adsorbents with a higher non-polar character have proven to be more efficient for the naphthalene adsorption. This behaviour has been linked to the presence of specific interactions
between the basal planes and the polyaromatic structure of the naphthalene molecule.
2009-02-23T13:28:38Z
2009-02-23T13:28:38Z
2007-01
artículo
Water Research 41(2): 333–340 (2007)
0043-1354
http://hdl.handle.net/10261/10900
10.1016/j.watres.2006.10.016
eng
http://dx.doi.org/10.1016/j.watres.2006.10.016
openAccess
Elsevier