Title :
Facile synthesis of Ag-Fe2O3 core-shell composite nanoparticles by an in situ method
Author :
Youyi Sun ; Binghua Yang ; Ye Tian ; Guizhen Guo ; Wei Cai ; Minghong He ; Yaqing Liu
Author_Institution :
Res. Center for Eng. Technol. of Polymeric Composites of Shanxi Province, North Univ. of China, Taiyuan, China
fDate :
2/1/2011 12:00:00 AM
Abstract :
A new synthetic method of Ag-Fe2O3 core-shell composite nanoparticles is reported. The silver nanoparticles used as the seeds was synthesised by an in situ method in the presence of p-toluenesulfonic acid-doped polyaniline. Then the Fe2O3 was coated on the surface of silver nanoparticles in the dimethylformamide solution. The core-shell structure of Ag-Fe2O3 composite nanoparticles was confirmed by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy and UV-vis spectroscopy. The result showed that the average size of the Ag core and average thinkness of the Fe2O3 shell are 38.0 and 5.5 nm, respectively. It provides an opportunity to synthesise other core shell (Fe2O3) nanoparticles by one experiment.
Keywords :
Fourier transform spectra; X-ray diffraction; infrared spectra; iron compounds; nanocomposites; nanofabrication; nanoparticles; scanning electron microscopy; silver; transmission electron microscopy; ultraviolet spectra; visible spectra; Ag-Fe2O3; Fourier transform infrared spectroscopy; UV-vis spectroscopy; X-ray diffraction; core-shell composite nanoparticles; dimethylformamide solution; facile synthesis; in situ method; p-toluenesulfonic acid-doped polyaniline; scanning electron microscopy; silver nanoparticles; transmission electron microscopy;
Journal_Title :
Micro & Nano Letters, IET
DOI :
10.1049/mnl.2010.0149
