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Hierarchically-organized, well-dispersed hydroxyapatite-coated magnetic carbon with combined organics and inorganics removal properties

Huihui Yang 1 Qiang Liu 2 Sylvie Masse 1 Hao Zhang 2 Laifeng Li 2, * T. Coradin 1
* Corresponding author
1 MATBIO - Matériaux et Biologie
LCMCP - Laboratoire de Chimie de la Matière Condensée de Paris
Abstract : Novel hierarchically-organized magnetic microspheres have been successfully developed that consist of an aqueous hollow core, a magnetic porous Fe3O4-carbon layer and a well-define hydroxyapatite (HAp) shell. The hollow magnetic carbon microspheres were prepared by ultrasonic spray pyrolysis and coated with HAp using a biomimetic approach. The resulting powders exhibit micro- and meso-porosity. The removal capacity of the composite spheres towards an antibiotic (ampicilin), a rare-earth ion (La3+) and two heavy metals (Hg2+ and Pb2+) has been studied and compared with that of the individual components. The dual organic-inorganic affinity of the magnetic HAp/carbon conjugates was demonstrated, with synergetic effects being evidenced for heavy metal removal enlightening their potentialities in wastewater treatment.
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https://hal.sorbonne-universite.fr/hal-01142009
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Submitted on : Tuesday, April 14, 2015 - 12:02:41 PM
Last modification on : Friday, October 30, 2020 - 2:40:03 PM
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Huihui Yang, Qiang Liu, Sylvie Masse, Hao Zhang, Laifeng Li, et al.. Hierarchically-organized, well-dispersed hydroxyapatite-coated magnetic carbon with combined organics and inorganics removal properties. Chemical Engineering Journal, Elsevier, 2015, 275, pp.152-159. ⟨10.1016/j.cej.2015.04.026⟩. ⟨hal-01142009⟩

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