Adsorption characteristics of phenol and chlorophenols on granular activated carbons (GAC)

Title
Adsorption characteristics of phenol and chlorophenols on granular activated carbons (GAC)
Authors
안규홍정민우이용훈김기팔이재성박정태팽기정
Keywords
adsorption isotherms; Adsorption; Activated carbon; Physical properties; Chemical structure; Freundlich equation; Dispersion force
Issue Date
2001-09
Publisher
Microchemical journal
Citation
VOL 70, NO 2, 123-131
Abstract
The adsorption of phenol and chlorophenols on four commercial granular activated carbons ŽGAC. was investigated by batch experiment to correlate with the structure of activated carbons. Physical properties including surface area, average pore diameter and micropore volume and chemical structure of the activated carbons were characterized by N2 adsorption experiment, scanning electron microscopy ŽSEM., X-ray diffraction ŽXRD. analysis, elemental analysis, X-ray photoelectron spectroscopy ŽXPS. and FT-IR spectroscopy. To calculate the adsorption parameters, adsorption isotherm data were fitted to the Freundlich equation. From the correlation between the characterization and the Freundlich parameters, it is concluded that the adsorption behavior of phenol and chlorophenols on activated carbons is controlled by the dispersion force between the -electrons in activated carbons and those in phenol molecules. 2001 Elsevier Science B.V. All rights reserved.
URI
http://pubs.kist.re.kr/handle/201004/14067
ISSN
0026-265X
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KIST Publication > Article
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