A versatile approach for the fabrication of Au hollow nanoparticles based on poly(styrene-co-2-aminoethyl methacrylate) template
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The hollow Au nanospheres were successfully prepared by the template method. The poly(styrene-co-2-aminoethyl methacrylate hydrochloride) (P(St-co-AEMH)) nanoparticles synthesized by the emulsion polymerization were used as the templates. After coating by Au colloidal nanoparticles and the formation of Au shells, the interior templates were etched out by sulfuric acid, leading to the formation of Au hollow nanospheres. The structure and morphology of the nanoparticles and hollow nanospheres were carefully investigated by the fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray analysis (EDX), wide-angle X-ray diffractometer (WAXD), and thermal gravimetric analysis (TGA) techniques.
KeywordsEmulsion Polymerization Thermal Gravimetric Analysis Shell Nanoparticles Hollow Nanospheres Polymer Template
Financial support for this study was provided by the Natural Science Foundation of Jiangxi Province (2007GZC1727 and 2008GQH0046), Jiangxi Provincial Department of Education, and Program for Innovative Research Team of Nanchang University, Program for Innovative Research Team in University of Jiangxi Province, and Program for Changjiang Scholars and Innovative Research Team in University (IRT0730). The author would like to thank Mr. S. D. Li from Department of Physics of Fujian Normal University for technique assistances.