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Biopolymer Encapsulation of PEI-Derivatives for Heavy Metal Sorption

Caroline Bertagnolli 1 Vincent Thierry 1 Eric Guibal 1
1 Pôle MPA - Pôle Matériaux Polymères Avancés
C2MA - Centre des Matériaux des Mines d'Alès
Abstract : Composite materials have been synthesized by alginate or chitosan encapsulation of polyethylenimine (PEI) derivatives (obtained by glutaraldehyde grafting of histidine and carbon disulfide). Discrete or agglomerated PEI-derivative particles are immobilized in the macroporous network of biopolymer matrix (as shown by scanning electron microscopy and SEM-EDX analysis). The effect of pH and initial concentration on Zn (II) and Cu (II) sorption performance were analyzed. The incorporation of PEI-derivatives biopolymer matrix improves sorption performance in complex solutions (doped with CaCl2) compared to pristine biopolymer. Maximum sorption capacities range from 0.64 to 1 mmol L-1 for Zn (II) and from 1.13 to 1.67 mmol L-1 for Cu (II).
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https://hal.mines-ales.fr/hal-02915437
Contributor : Administrateur Imt - Mines Alès <>
Submitted on : Friday, August 14, 2020 - 2:37:36 PM
Last modification on : Sunday, August 16, 2020 - 3:05:29 AM

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Caroline Bertagnolli, Vincent Thierry, Eric Guibal. Biopolymer Encapsulation of PEI-Derivatives for Heavy Metal Sorption. Advanced Materials Research, Trans Tech Publications, 2015, 1130, pp.529-532. ⟨10.4028/www.scientific.net/AMR.1130.529⟩. ⟨hal-02915437⟩

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