Title : ( Photocatalytic Synthesis of Gold Nanoparticles Using Preyssler Acid and Their Photocatalytic Activity )
Authors: Ali Ayati , Ali Ahmadpour , F. F. Bamoharram , M. M. Heravi , Hamed Rashidi ,
Full TextAbstract
Preyssler acid H14[NaP5W30O110] was used as reducing agent and stabilizer for the synthesis of gold nanoparticles by photolysis of Au(III)/Preyssler acid/propan-2-ol solution. Preyssler acid plays both the role of transferring electrons from propan-2-ol to Au(III) and stabilizing the nanoparticles. Propan-2-ol was used as sacrificial reagent for the photoformation of reduced Preyssler acid. Gold nanoparticles (Au NPs) were characterized by UV-Vis spectroscopy, transmission electron microscopy (TEM), and particle size distribution (PSD) measurements. The synthesized Au NPs had a uniform hexagonal morphology and their size was about 17 nm. The catalytic performance of these NPs for photodegradation of methyl orange (MeO) was investigated in aqueous solution. UV-Vis studies showed that Au NPs can catalyze photodegradation of this azo dye. The pseudo-first-order rate constants were also calculated for this reaction.
Keywords
gold; nanoparticle; polyoxometalate; Preyssler acid; photodegradation; methyl orange
@article{paperid:1022874,
author = {Ayati, Ali and Ahmadpour, Ali and F. F. Bamoharram and M. M. Heravi and Rashidi, Hamed},
title = {Photocatalytic Synthesis of Gold Nanoparticles Using Preyssler Acid and Their Photocatalytic Activity},
journal = {Chinese Journal of Catalysis},
year = {2011},
volume = {32},
number = {6},
month = {June},
issn = {0253-9837},
pages = {978--982},
numpages = {4},
keywords = {gold; nanoparticle; polyoxometalate; Preyssler acid; photodegradation; methyl orange},
}
%0 Journal Article
%T Photocatalytic Synthesis of Gold Nanoparticles Using Preyssler Acid and Their Photocatalytic Activity
%A Ayati, Ali
%A Ahmadpour, Ali
%A F. F. Bamoharram
%A M. M. Heravi
%A Rashidi, Hamed
%J Chinese Journal of Catalysis
%@ 0253-9837
%D 2011
