Title : ( A RAPID SIMPLE ROUTE FOR SYNTHESIS OF NANOSIZED SILVER BY CHEMICAL PHOTOREDUCTION METHOD USING POLYOXOMETALATE )
Authors: Ali Ayati , Ali Ahmadpour , F.F. Bamoharram , M.M. Heravi , Hamed Rashidi , BAHAREH TANHAEE ,
Full TextAbstract
Synthesis of nanosized silver particles by chemical reduction using polyoxometalate (H3PW12O40), formaldehyde as a reductant agent and PVP (polyvinyl-pyrrolidone) as a stabilizer was performed. Effects of several processing variables such as quantities of acidic solution, irradiation time and also protective agents were investigated. The products were mainly characterized for their particle size distribution to provide information on the optimal conditions of synthesis and sufficient stability against coagulation. Also, silver nanoparticles were characterized by transmission electron microscopy (TEM) and x-ray diffraction (XRD). It is shown that increasing H3PW12O40 amount and irradiation time and also decreasing PVP as stabilizer, increase the size of synthesized nanoparticles. Our results indicated that for 0.01M silver nitrate solution, the addition of PVP/AgNO3 ratio to 4 and quantity of H3PW12O40 to 0.03g would produce silver colloids having sizes between 2 to 20 nm. The synthesized nanoparticles by this method are free from any metal ion contamination and suitable for use in semiconductor industry.
Keywords
, Chemical reduction, polyoxometalate, PVP, Formaldehyde.
@inproceedings{paperid:1019176,
author = {Ayati, Ali and Ahmadpour, Ali and F.F. Bamoharram and M.M. Heravi and Rashidi, Hamed and TANHAEE, BAHAREH},
title = {A RAPID SIMPLE ROUTE FOR SYNTHESIS OF NANOSIZED SILVER BY CHEMICAL PHOTOREDUCTION METHOD USING POLYOXOMETALATE},
booktitle = {3rd International Congress on Nanoscience and Nanotechnology},
year = {2010},
location = {شیراز, IRAN},
keywords = {Chemical reduction; polyoxometalate; PVP; Formaldehyde.},
}
%0 Conference Proceedings
%T A RAPID SIMPLE ROUTE FOR SYNTHESIS OF NANOSIZED SILVER BY CHEMICAL PHOTOREDUCTION METHOD USING POLYOXOMETALATE
%A Ayati, Ali
%A Ahmadpour, Ali
%A F.F. Bamoharram
%A M.M. Heravi
%A Rashidi, Hamed
%A TANHAEE, BAHAREH
%J 3rd International Congress on Nanoscience and Nanotechnology
%D 2010
