2020
Volume 20, Number 3, pp. 111-121
Simple and rapid preparation of Fe3O4/β-cyclodextrin magnetic nanoparticles via microwave-assisted coprecipitation compared with a conventional method
M.-E. Kouli,1 M. Kourinou,1 I. Kokkinopoulos,1 G. Banis,1 M. Savvidou,1 A. Ferraro,1 A. Mamalis2 and E. Hristoforou1
1 Laboratory of Electronic Sensors, School of Electrical and Computer Engineering, National Technical University of Athens, Iroon Polytechniou 9, 15780 Zografou, Attiki, Greece
2 Project Centre for Nanotechnology and Advanced Engineering, NCSR "Demokritos", Athens, Greece
The purposes of the present work were: (i) to synthesize iron oxide nanoparticles in a short time and simple way and then to coat them with β-cyclodextrin (β-CD) via microwave-assisted coprecipitation; and (ii) to compare the quality of such nanoparticles with those synthesized by conventional "improved" coprecipitation. The main advantages of the microwave-assisted method are the shorter reaction time and the homogeneous heating. The nanoparticles were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and vibrating sample magnetometry (VSM). Hydrodynamic radius and zeta potential were determined by dynamic light scattering (DLS). The results showed that microwave-assisted coprecipitation makes it feasible to prepare Fe3O4/β-CD nanoparticles much more rapidly than those of similar properties prepared by the mainstream chemical method of improved coprecipitation.
Keywords: core/shell, infrared spectroscopy, magnetite, superparamagnetism, X-ray diffraction