摘要
Mesoporous carbon CMK-3 was synthesized by using SBA-15 silica mesoporous as hard template and characterized through nitrogen adsorption/desorption and low angle X-ray diffraction.As-prepared material with large pores and high surface area was used to remove Orange G dye from aqueous solution.Adsorption experiments were carried out as batch studies at variety of contact times,pH,initial dye concentrations,temperatures and salt concentrations.Langmuir and Freundlich isotherm models were employed to simulate the equilibrium data of anionic dye.It was found that the equilibrium data were well represented by the Langmuir isotherm,yielding maximum monolayer adsorption capacity of 189 mg/g.Experimental data were analyzed using pseudo-first order and pseudo-second order kinetic models and obtained results indicated that kinetics followed a pseudo-second order equation.
Mesoporous carbon CMK-3 was synthesized by using SBA-15 silica mesoporous as hard template and characterized through nitrogen adsorption/desorption and low angle X-ray diffraction.As-prepared material with large pores and high surface area was used to remove Orange G dye from aqueous solution.Adsorption experiments were carried out as batch studies at variety of contact times,pH,initial dye concentrations,temperatures and salt concentrations.Langmuir and Freundlich isotherm models were employed to simulate the equilibrium data of anionic dye.It was found that the equilibrium data were well represented by the Langmuir isotherm,yielding maximum monolayer adsorption capacity of 189 mg/g.Experimental data were analyzed using pseudo-first order and pseudo-second order kinetic models and obtained results indicated that kinetics followed a pseudo-second order equation.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2012年第6期660-666,共7页
Journal of Inorganic Materials
基金
the research council of Science and Research campus of Islamic Azad University for the financial support
关键词
摘要
编辑部
编辑工作
读者
CMK-3
Orange G
adsorption isotherm
kinetic
