Jingle-bell-shaped ferrite hollow sphere with a noble metal core: Simple synthesis and their magnetic and antibacterial properties

Journal Article · Tue Jul 15 00:00:00 EDT 2008 · Journal of Solid State Chemistry

OSTI ID:21128356

Siheng, Li ^[1]; Chungui, Tian; Baodong, Mao; Zhenhui, Kang; Qiuyu, Li; Guoying, Sun ^[1]

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1. Key Laboratory of Polyoxometalate Science of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024 (China)

In this paper, a simple strategy is developed for rational fabrication of a class of jingle-bell-shaped hollow structured nanomaterials marked as Ag(MFe{sub 2}O{sub 4}) (M=Ni, Co, Mg, Zn), consisting of ferrite hollow shells and metal nanoparticle cores, using highly uniform colloidal Ag(C) microspheres as template. The final composites were obtained by direct adsorption of metal cations Fe{sup 3+} and M{sup 2+} on the surface of the Ag(C) spheres followed by calcination process to remove the middle carbon shell and transform the metal ions into pure phase ferrites. The as-prepared composites were characterized by X-ray photoelectron spectroscopy (XPS), energy-dispersive X-ray analysis (EDX), X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-vis spectroscopy and SQUID magnetometer. The results showed that the composites possess the magnetic property of the ferrite shell and the optical together with antibacterial property of the Ag core. - Graphical abstract: MFe{sub 2}O{sub 4} (M=Ni, Co, Mg, Zn) hollow spheres with a noble metal nanoparticle core were successfully prepared by using colloidal metal(C) core-shell spheres as templates with no need of surface modification. The shell thickness and magnetic properties of the ferrite hollow spheres could be controlled by varying the synthetic parameters.

• OSTI ID: 21128356
• Journal Information: Journal of Solid State Chemistry, Vol. 181, Issue 7; Other Information: DOI: 10.1016/j.jssc.2008.05.021; PII: S0022-4596(08)00259-4; Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CALCINATION
COBALT COMPOUNDS
FABRICATION
FERRITES
IRON IONS
MAGNESIUM COMPOUNDS
MAGNETIC PROPERTIES
MAGNETOMETERS
MICROSPHERES
NANOSTRUCTURES
NICKEL COMPOUNDS
SCANNING ELECTRON MICROSCOPY
SHELLS
SILVER COMPOUNDS
SQUID DEVICES
SYNTHESIS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY
ZINC COMPOUNDS