Silica-Coated Magnetic Nanocomposites for Pb<sup>2+</sup> Removal from Aqueous Solution

Silica-Coated Magnetic Nanocomposites for Pb<sup>2+</sup> Removal from Aqueous Solution

Magnetic iron oxide-silica shell nanocomposites with different iron oxide/silica ratio were synthesized and structurally characterized by Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), small-angle neutron scattering, magnetic and N<sub>2</sub>-sorption studies....

Ausführliche Beschreibung

Bibliographische Detailangaben
Hauptverfasser: Roxana Nicola, Otilia Costişor, Mihaela Ciopec, Adina Negrea, Radu Lazău, Cătălin Ianăşi, Elena-Mirela Picioruş, Adél Len, László Almásy, Elisabeta I. Szerb, Ana-Maria Putz
Format: Artikel
Sprache:English
Veröffentlicht: MDPI AG 2020-04-01
Schriftenreihe:Applied Sciences
Schlagworte:
magnetic nanoparticles
iron oxide-silica shell nanocomposite
lead adsorption
Online Zugang:https://www.mdpi.com/2076-3417/10/8/2726
Beschreibung
Zusammenfassung:Magnetic iron oxide-silica shell nanocomposites with different iron oxide/silica ratio were synthesized and structurally characterized by Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), small-angle neutron scattering, magnetic and N<sub>2</sub>-sorption studies. The composite that resulted with the best properties in terms of contact surface area and saturation of magnetization was selected for Pb<sup>2+</sup> adsorption studies from aqueous media. The material presented good absorption capacity (maximum adsorption capacity 14.9 mg·g<sup>−1</sup>) comparable with similar materials presented in literature. Its chemico-physical stability and adsorption capacity recommend the nanocomposite as a cheap adsorbent material for lead.
ISSN:2076-3417

Ähnliche Einträge