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2017•Unpublished venueOpen access

Removal of Cr3+ in Aqueous Solutions by Zeolite A/Activated Carbon Composite Synthesized from Elutrilithe

Yong Zhang, Juanjuan Ma, Huigang Wang, Xingyu Cui, Feng Yu, Wenping Cheng, Jinghong Ma

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Abstract

In this work, the zeolite A/activated carbon (A/AC) composite was synthesized from elutrilithe and pitch, and the removal of Cr 3+ from aqueous solutions has been evaluated.The effects of batch experiment conditions, such as solution pH, contact time and initial concentration, on Cr 3+ adsorption performances were investigated.The results demonstrated A/AC exhibited effective adsorption ability for the removal of Cr 3+ in comparison with elutrilithe.The adsorption isotherm data could be better fitted by Langmuir-Freundlich model.The fitted data shows that the adsorption surface is heterogeneous.Removal of Cr 3+ contributes to the ion exchange of zeolite and electrostatic adsorption of activated carbon.

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In this work, the zeolite A/activated carbon (A/AC) composite was synthesized from elutrilithe and pitch, and the removal of Cr 3+ from aqueous solutions has been evaluated.The effects of batch experiment conditions, such as solution pH, contact time and initial concentration, on Cr 3+ adsorption performances were investigated.The results demonstrated A/AC exhibited effective adsorption ability for the removal of Cr 3+ in comparison with elutrilithe.The adsorption isotherm data could be better fitted by Langmuir-Freundlich model.The fitted data shows that the adsorption surface is heterogeneous.Removal of Cr 3+ contributes to the ion exchange of zeolite and electrostatic adsorption of activated carbon.

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Available abstract

In this work, the zeolite A/activated carbon (A/AC) composite was synthesized from elutrilithe and pitch, and the removal of Cr 3+ from aqueous solutions has been evaluated.The effects of batch experiment conditions, such as solution pH, contact time and initial concentration, on Cr 3+ adsorption performances were investigated.The results demonstrated A/AC exhibited effective adsorption ability for the removal of Cr 3+ in comparison with elutrilithe.The adsorption isotherm data could be better fitted by Langmuir-Freundlich model.The fitted data shows that the adsorption surface is heterogeneous.Removal of Cr 3+ contributes to the ion exchange of zeolite and electrostatic adsorption of activated carbon.

Key concepts: Zeolite, Composite number, Aqueous solution, Activated carbon, Carbon fibers, Chemical engineering, Materials science, Chemistry

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