Determination of adsorption capacity and thermodynamic parameters of the PAC used for bomaplex red CR-L dye removal. Oguz, E. & Keskinler, B. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 268(1-3):124-130, 2005.
abstract   bibtex   
In this study, powder activated carbon (PAC) was used to remove Bomaplex Red CR-L dye from aqueous solutions. The influence of suspension pH, temperature, agitation rate, and the PAC dosage on Bomaplex Red CR-L dye removal and adsorption capacity was investigated by conducting a series of batch adsorption experiments. In addition, the mechanism of the dye removal was explained on the basis of the results of fourier transform infrared spectroscopy (FTIR). In order to gather information about adsorption mechanism at various pHs, electrophoretic mobilites of particles were measured. According to the BET (N2) measurements, the specific surface area of the PAC was found as 465 m(2)/g. The adsorption constants were defined according to Freundlich, Langmuir, BET and D-R isotherm models. The experimental adsorption data were fitted to Freundlich adsorption model (R-2 = 0.98). Thermodynamic parameters such as Delta H degrees, Delta S degrees and Delta G degrees were calculated from the slope and intercept of linear plot of log K-c against (I/T) x 1000. In this study, at the result of a 30 min reaction time, the max dye removal efficiency and adsorption capacity were obtained as 99% and 83 mg/g, respectively. (c) 2005 Elsevier B.V. All rights reserved.
@article{
 title = {Determination of adsorption capacity and thermodynamic parameters of the PAC used for bomaplex red CR-L dye removal},
 type = {article},
 year = {2005},
 identifiers = {[object Object]},
 pages = {124-130},
 volume = {268},
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 last_modified = {2016-04-28T08:46:00.000Z},
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 citation_key = {ISI:000233079200020},
 source_type = {article},
 abstract = {In this study, powder activated carbon (PAC) was used to remove
Bomaplex Red CR-L dye from aqueous solutions. The influence of
suspension pH, temperature, agitation rate, and the PAC dosage on
Bomaplex Red CR-L dye removal and adsorption capacity was investigated
by conducting a series of batch adsorption experiments. In addition,
the mechanism of the dye removal was explained on the basis of the
results of fourier transform infrared spectroscopy (FTIR). In order to
gather information about adsorption mechanism at various pHs,
electrophoretic mobilites of particles were measured. According to the
BET (N2) measurements, the specific surface area of the PAC was found
as 465 m(2)/g. The adsorption constants were defined according to
Freundlich, Langmuir, BET and D-R isotherm models. The experimental
adsorption data were fitted to Freundlich adsorption model (R-2 =
0.98). Thermodynamic parameters such as Delta H degrees, Delta S
degrees and Delta G degrees were calculated from the slope and
intercept of linear plot of log K-c against (I/T) x 1000. In this
study, at the result of a 30 min reaction time, the max dye removal
efficiency and adsorption capacity were obtained as 99% and 83 mg/g,
respectively. (c) 2005 Elsevier B.V. All rights reserved.},
 bibtype = {article},
 author = {Oguz, E and Keskinler, B},
 journal = {COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS},
 number = {1-3}
}
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