Equilibrium and Kinetic Adsorption Study of the Removal of Orange-G Dye Using Carbon Mesoporous Material

doi:10.3724/SP.J.1077.2012.12050

无机材料学报 ›› 2012, Vol. 27 ›› Issue (6): 660-666.DOI: 10.3724/SP.J.1077.2012.12050 CSTR: 32189.14.SP.J.1077.2012.12050

Equilibrium and Kinetic Adsorption Study of the Removal of Orange-G Dye Using Carbon Mesoporous Material

KAVEH Arzani, BEHDAD Ghaderi Ashtiani, AMIRHOSSEIN Haji Aboutorab Kashi

(Department of Materials Engineering, Science and Research Branch, Islamic Azad University, Tehran 14515/775, Iran)

收稿日期:2012-01-24 修回日期:2012-02-13 出版日期:2012-06-20 网络出版日期:2012-05-07

Equilibrium and Kinetic Adsorption Study of the Removal of Orange-G Dye Using Carbon Mesoporous Material

KAVEH Arzani, BEHDAD Ghaderi Ashtiani, AMIRHOSSEIN Haji Aboutorab Kashi

(Department of Materials Engineering, Science and Research Branch, Islamic Azad University, Tehran 14515/775, Iran)

Received:2012-01-24 Revised:2012-02-13 Published:2012-06-20 Online:2012-05-07

摘要/Abstract

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.

关键词: CMK-3, Orange G, adsorption isotherm, kinetic

Abstract: 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.

Key words: CMK-3, Orange G, adsorption isotherm, kinetic

KAVEH Arzani, BEHDAD Ghaderi Ashtiani, AMIRHOSSEIN Haji Aboutorab Kashi. Equilibrium and Kinetic Adsorption Study of the Removal of Orange-G Dye Using Carbon Mesoporous Material[J]. 无机材料学报, 2012, 27(6): 660-666.

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Equilibrium and Kinetic Adsorption Study of the Removal of Orange-G Dye Using Carbon Mesoporous Material

Equilibrium and Kinetic Adsorption Study of the Removal of Orange-G Dye Using Carbon Mesoporous Material

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