Carbon-encapsulated magnetic nanoparticles as separable and mobile sorbents of heavy metal ions from aqueous solutions

Carbon-encapsulated magnetic nanoparticles (CEMNPs) are studied as mobile sorbents for removal of heavy metal ions (Cu 2+, Co 2+, Cd 2+) from aqueous solutions. The ion uptakes achieve 95% for cadmium and copper. CEMNPs-based sorbents also have excellent adsorption capacities (between 1.23 and 3.21...

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Veröffentlicht in:	Carbon (New York) 2009-04, Vol.47 (4), p.1201-1204
Hauptverfasser:	Bystrzejewski, M., Pyrzyńska, K., Huczko, A., Lange, H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Adsorbents Aqueous solutions Cadmium bronzes Carbon Chemistry Colloidal state and disperse state Copper Cross-disciplinary physics: materials science rheology Exact sciences and technology Fullerenes and related materials diamonds, graphite General and physical chemistry Heavy metals Materials science Nanoparticles Physical and chemical studies. Granulometry. Electrokinetic phenomena Physics Sorbents Specific materials Surface physical chemistry Uptakes
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Beschreibung
Zusammenfassung:	Carbon-encapsulated magnetic nanoparticles (CEMNPs) are studied as mobile sorbents for removal of heavy metal ions (Cu 2+, Co 2+, Cd 2+) from aqueous solutions. The ion uptakes achieve 95% for cadmium and copper. CEMNPs-based sorbents also have excellent adsorption capacities (between 1.23 and 3.21 mg/g), which are considerably higher than the capacities of activated carbons (between 0.37 and 0.39 mg/g).
ISSN:	0008-6223 1873-3891
DOI:	10.1016/j.carbon.2009.01.007