Photocatalytic Synthesis of Gold Nanoparticles Using Preyssler Acid and Their Photocatalytic Activity  

作　　者：Ali AYATI Ali AHMADPOUR Fatemeh F.BAMOHARRAM Majid M.HERAVI Hamed RASHIDI 

机构地区：[1]Department of Chemical Engineering,Ferdowsi University of Mashhad [2]Department of Chemistry,School of Sciences,Islamic Azad University [3]Department of Chemistry,School of Sciences,Alzahra University

出　　处：《催化学报》2011年第6期978-982,共5页

基　　金：supported by the Faculty of Engineering,Ferdowsi University of Mashhad,through the grant 13198

摘　　要：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.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.

关 键 词：固体超强碱 氧化钙 硝酸钾 氧化铝 氧化锆 氢氧化钾 硝酸钙 

分 类 号：O643.36[理学—物理化学]