Details

Autor(en) / Beteiligte

• Rabelo, D
• Lima, E. C. D
• Reis, A. C
• Nunes, W. C
• Novak, M. A
• Garg, V. K
• Oliveira, A. C
• Morais, P. C

Titel

Preparation of Magnetite Nanoparticles in Mesoporous Copolymer Template

Ist Teil von

• Nano letters, 2001-02, Vol.1 (2), p.105-108

Ort / Verlag

Washington, DC: American Chemical Society

Erscheinungsjahr

2001

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Preparation of size-controllable magnetite (Fe3O4) nanoparticles by alkaline oxidation of ferrous ion adsorbed in sulfonated mesoporous styrene−divinylbenzene copolymer is described. It was observed that the magnetite nanoparticle size increases by ion-charging the sulfonated polymeric template with ferrous aqueous solution at increasing iron concentration. A simple model describing the amount of iron incorporation in the polymeric template is proposed. The magnetite-based composite was investigated by atomic absorption, transmission electron microscopy, Mössbauer spectroscopy, X-ray diffraction, and magnetization data.