Research Article

Adsorption of Pb²⁺ and Cd²⁺ onto a Novel Activated Carbon-Chitosan Complex

Corresponding Author

H. Ge

[email protected]

College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China

College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, ChinaSearch for more papers by this author

X. Fan,

X. Fan

College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China

Search for more papers by this author

H. Ge,

Corresponding Author

H. Ge

[email protected]

College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China

College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, ChinaSearch for more papers by this author

X. Fan,

X. Fan

College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China

Search for more papers by this author

First published: 06 September 2011

https://doi.org/10.1002/ceat.201000182

Citations: 50

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Abstract

A novel activated carbon-chitosan complex adsorbent (ACCA) was prepared via the crosslinking of glutaraldehyde and activated carbon-(NH₂-protected) chitosan complex under microwave irradiation. The surface morphology of this adsorbent was characterized. The adsorption of ACCA for Pb²⁺ and Cd²⁺ was investigated. The results demonstrate that ACCA has higher adsorption capacity than chitosan. The adsorption follows pseudo first-order kinetics. The isotherm adsorption equilibria are better described by Freundlich and Dubinin-Radushkevich isotherms than by the Langmuir isotherm. The adsorbent can be recycled. These results have important implications for the design of low-cost and effective adsorbents in the removal of heavy metal ions from wastewaters.

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Volume34, Issue10

October, 2011

Pages 1745-1752

Adsorption of Pb²⁺ and Cd²⁺ onto a Novel Activated Carbon-Chitosan Complex

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Adsorption of Pb²⁺ and Cd²⁺ onto a Novel Activated Carbon-Chitosan Complex