PVP and G1.5 PAMAM dendrimer co-mediated synthesis of silver nanoparticles

摘要

PVP and G 1.5 PAMAM dendrimer co-mediated silver nanoparticles of smaller than 5 rim in diameter were prepared using H, as reducing agent. With the TEM micrograph, it was found that the molar ratios of PVP and G1.5 PAMAM dendrimer have significant effect in the morphology and size distribution of silver nanoparticles. The reaction rate (fitting a first-order equation) was strongly influenced by the molar ratios of PVP and G1.5 PAMAM dendrimer and the reaction temperature. From the UV-Vis spectra of an aqueous solution of silver nanoparticles, they could be stored for at least 2 months without coagulation at room temperature. (c) 2005 Elsevier Inc. All rights reserved.