In
this study, the porous carbon was prepared through templated synthesis method
using the natural zeolite as template and sugar as carbon source. The porous
carbon was obtained at a carbonization temperature of 700oC with a
weight ratio 1:1 for zeolite and sugar. The physical, structural and surface
properties of the porous carbon were characterized with the scanning electron
microscope (SEM), transmission electron microscope (TEM), X-ray diffraction
(XRD), elemental analysis and nitrogen (N2) adsorption. The specific
surface area and total pore volume of carbon were found as 412 m2/g
and 0.5515 cm3/g, respectively. This carbon material was used for
removal of Pb2+ ions from solution. The effects of initial pH, temperature
and contact time on adsorption were studied. The maximum Pb2+
removal was observed at pH=5. The adsorption was reached to the equilibrium in
120 minutes. Various kinetic models were used for describing the adsorption
kinetic and the pseudo-second order kinetic model showed well fit. Langmuir,
Freundlich and Temkin isotherm models were applied to the experimental
equilibrium data and Langmuir equation was found as best fitting isotherm.
| Primary Language | English |
|---|---|
| Subjects | Engineering |
| Journal Section | Articles |
| Authors | |
| Publication Date | December 4, 2018 |
| Published in Issue | Year 2018 Issue: 4 |