Adsorption capability of activated carbon synthesized from coconut shell
관리자2016-12-02조회 2891
Activated carbon was synthesized from coconut shells. The Brunauer, Emmett and Teller
surface area of the synthesized activated carbon was found to be 1640 m2/g with a pore volume
of 1.032 cm3/g. The average pore diameter of the activated carbon was found to be 2.52
nm. By applying the size-strain plot method to the X-ray diffraction data, the crystallite size
and the crystal strain was determined to be 42.46 nm and 0.000489897, respectively, which
indicate a perfect crystallite structure. The field emission scanning electron microscopy image
showed the presence of well-developed pores on the surface of the activated carbon.
The presence of important functional groups was shown by the Fourier transform infrared
spectroscopy spectrum. The adsorption of methyl orange onto the activated carbon reached
100% after 12 min. Kinetic analysis indicated that the adsorption of methyl orange solution
by the activated carbon followed a pseudo-second-order kinetic mechanism (R2 > 0.995).
Therefore, the results show that the produced activated carbon can be used as a proper adsorbent
for dye containing effluents.
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