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Balarak, Mostafapour and Joghataei
BIOSCIENCE BIOTECHNOLOGY RESEARCH COMMUNICATIONS APPLICATION OF SINGLE-WALLED CARBON NANOTUBES FOR REMOVAL OF ANILINE 317
The adsorption energy obtained from Tempkin plot
218.25 J/mg which indicates that the adsorption process
is endothermic and a strong interaction between SWCNT
S
and Aniline molecules. Also value of energy obtained
from Dubinin Radushkevich isotherm was 808.95 J/mol,
revealing physisorption of Aniline on SWCNT
S
.
CONCLUSION
The results of the present study indicate that SWCNT
S
have good potential as adsorbents for the removal of
aniline from aqueous solution. The amount of aniline
uptake (mg/g) was found to increase with increase in
aniline concentration and adsorption time. The results
obtained from the plots show that the process of adsorp-
tion follows Langmuir and Freundlich Isotherm model
for adsorbent. Thus, it can be used to estimate the model
parameters. This con rms the fact that Langmuir Iso-
therm best explains the adsorption process of aniline
from aqueous solution. The maximum loading capacity
estimated was 37.59 (mg/g) for Langmuir model.
ACKNOWLEDGEMENT
The authors are grateful from deputy of research and
technology of Qom University of Medical Sciences due
to supporting of this research.
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