Title : ( Application of Molybdophosphoric Acid in Size-Controlled Synthesis of Gold Nanoparticles under UV Irradiation )
Authors: Ali Ayati , Ali Ahmadpour , Fatemeh F. Bamoharram , Majid M . Heravi , Hamed Rashidi , Bahareh tanhaei ,
Full TextAbstract
In this paper, we have described the size-controlled synthesis of gold nanoparticles based on the reduction of Au3+ (HAuCl4) using molybdophosphoric acid (H3[PMo12O40], HPMo) under UV-irradiation. In the process, HPMo plays the role of photocatalyst, reducing agent and stabilizer and propan-2-ol acts as a sacrificial agent. This method allows the synthesis of uniform hexagonal nanoparticles with an average size that is tunable between 1.93 and 119 nm by varying the gold ion concentration, HPMo dose (or molar ratio of gold ion to HPMo) and Propan-2-ol amount. We have found that there is a critical ratio for [Au3+]/[HPMo], in which two opposing trends in the size of gold nanoparticles would happened.
Keywords
Polyoxometalate; Molybdophosphoric acid; Gold; Nanoparticle; UV irradiation.
@article{paperid:1028101,
author = {Ayati, Ali and Ahmadpour, Ali and Fatemeh F. Bamoharram and Majid M . Heravi and Rashidi, Hamed and Tanhaei, Bahareh},
title = {Application of Molybdophosphoric Acid in Size-Controlled Synthesis of Gold Nanoparticles under UV Irradiation},
journal = {بین المللی نانو علم و فناوری - International Journal of NanoScience and Nanotechnology},
year = {2011},
volume = {7},
number = {2},
month = {February},
issn = {1735-7004},
pages = {87--93},
numpages = {6},
keywords = {Polyoxometalate; Molybdophosphoric acid; Gold; Nanoparticle; UV irradiation.},
}
%0 Journal Article
%T Application of Molybdophosphoric Acid in Size-Controlled Synthesis of Gold Nanoparticles under UV Irradiation
%A Ayati, Ali
%A Ahmadpour, Ali
%A Fatemeh F. Bamoharram
%A Majid M . Heravi
%A Rashidi, Hamed
%A Tanhaei, Bahareh
%J بین المللی نانو علم و فناوری - International Journal of NanoScience and Nanotechnology
%@ 1735-7004
%D 2011
