Sonochemical synthesis of silver nanorods by reduction of silver nitrate in aqueous solution.
The sonochemical synthesis of silver nanorods has been achieved by ultrasonic irradiation of the aqueous solution of silver nitrate, methenamine (HMTA) and poly (vinyl pyrrolidone) (PVP) for 60 min. The silver nanorods obtained have lengths of 4-7 microm and mean diameters of about 100 nm. The structures of the samples were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), selected area electron diffraction (SAED) and X-ray powder diffraction (XRD), and the chemical composition of the sample was examined by energy-dispersive X-ray spectrum (EDS). The effects of the irradiation time, the concentration of PVP and the reaction temperature on the morphology of silver nanorods were discussed, and the mechanism of the silver nanorods formation was tentatively inferred.
Zhu
Yu-ping
YP
College of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
Wang
Xi-kui
XK
Guo
Wei-lin
WL
Wang
Jin-gang
JG
Wang
Chen
C