Adsorption of Cu(II), Hg(II), and Ni(II) ions by modified natural wool chelating fibers

The graft copolymerization of ethyl acrylate (EA) onto natural wool fibers initiated by potassium persulphate and Mohr's salt redox initiator system in limited aqueous medium was carried out in heterogeneous media. Ester groups of the grafted copolymers were partially converted into hydrazide f...

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Bibliographic Details
Published in:Journal of hazardous materials 2010-04, Vol.176 (1), p.348-355
Main Authors: Monier, M., Ayad, D.M., Sarhan, A.A.
Format: Article
Language:English
Subjects:
Acrylates - chemistry
Adsorption
Animals
Applied sciences
Chelating
Chelating Agents
Chemical engineering
Copolymerization
Copper - isolation & purification
Diffraction
Esters
Exact sciences and technology
Fibers
Grafting
Hazardous materials
Hydrazones
Isatin
Mercury - isolation & purification
Nickel - isolation & purification
Organic polymers
Physicochemistry of polymers
Pollution
Polyacrylic hydrazide
Polyethylacrylate
Polymers - chemical synthesis
Preparation, kinetics, thermodynamics, mechanism and catalysts
Wool
Wool - chemistry
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Summary:The graft copolymerization of ethyl acrylate (EA) onto natural wool fibers initiated by potassium persulphate and Mohr's salt redox initiator system in limited aqueous medium was carried out in heterogeneous media. Ester groups of the grafted copolymers were partially converted into hydrazide function groups followed by hydrazone formation through reaction with isatin. Also the application of the modified fibers for metal ion uptake was studied using Cu(II), Hg(II) and Ni(II). The modified chelating fibers were characterized using FTIR spectroscopy, SEM and X-ray diffraction.
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2009.11.034