Fabrication and Lead Ion Removal Property of Magnetic Hydroxyapatite Composite with Hierarchically Urchin-like Microstructure

Rui Xue Sun; Jia Long; Zhen Zong Sun; Chang Qiu Li; Long Shan Wang; Hong Xin Zhang; Ke Zheng Chen

doi:10.4028/www.scientific.net/AMR.941-944.666

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 941-944Fabrication and Lead Ion Removal Property of...

Fabrication and Lead Ion Removal Property of Magnetic Hydroxyapatite Composite with Hierarchically Urchin-like Microstructure

Abstract:

The hierarchically urchin-like magnetic hydroxyapatite (HAp)/Fe₃O₄ composites were hydrothermally fabricated and were used for the removal of Pb (II) from aqueous solutions. The morphology, composition and properties of the magnetic HAp/Fe₃O₄ composites were fully characterized and investigated. The results showed that the HAp/Fe₃O₄ composites had a 3D urchin-like hierarchical structure with Fe₃O₄ nanoparticles dispersed among the building units. These urchin-like composites had high surface area and good magnetic responsibility. The equilibrium removal process of Pb (II) by the composites was correlated well with the Langmuir model, resulting in the maximum adsorption capacity of 223.71 mg/g. The high adsorption capacity and good magnetic responsibility suggest that the multifunctional composites have great potentials for heavy metal ion removal.

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Periodical:

Advanced Materials Research (Volumes 941-944)

Pages:

666-671

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.941-944.666

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Online since:

June 2014

Authors:

Rui Xue Sun*, Jia Long, Zhen Zong Sun, Chang Qiu Li, Long Shan Wang, Hong Xin Zhang, Ke Zheng Chen

Keywords:

Adsorption, Hierarchical Structure, Lead Ion, Magnetic Hydroxyapatite Composite

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* - Corresponding Author

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