Facile method to functionalize graphene oxide with variable load of magnetite nanoparticles. (June 2019)

• Record Type: Journal Article
• Authors: Gómez, Iván; Cabanzo, Rafael; Mejía-Ospino, Enrique
• Is Part Of: Journal of physics. Volume 1247(2019)
• Publication Date: 2019-06
• Subjects: Graphene oxide -- magnetite nanoparticles -- ferromagnetic behaviour -- Fe3O4@GO hybrids; Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1247/1/012037
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: A facile route for the functionalization in situ of graphene oxide with magnetite nanoparticles (Fe3 O4 @GO) was developed. We used graphene oxide with different oxidation time (12 and 24 hours) and each one was functionalized with different proportions of Fe3 O4 nanoparticles modifying the load of the iron precursor (FeSO4 .7H2 O). The as-synthesized materials were characterized by multiple spectroscopic techniques (FT-IR, Raman, DRX, XPS) to demonstrate the successful attachment of iron oxide nanoparticle on graphene oxide sheets. Transmission electron microscopy (TEM) revealed that magnetite NPs were firmly decorated on the surfaces of graphene oxides with the mean diameter of about 7 nm. The magnetometry studies showed ferromagnetic behaviour of all composites in the range of 44-66 emu/g at room temperature.