Optical Properties of Nanosilver Synthesized by Chemical Reduction Method at Room Temperature
作者单位：Hubei Key Laboratory of Pollutant Analysis ＆ Reuse Technology Department of ChemistryHubei Normal University
会议名称：《第十七届全国化学热力学和热分析学术会议》
会议日期：2014年
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070205[理学-凝聚态物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 070301[理学-无机化学] 0702[理学-物理学]
基 金：supported by National Natural Science Foundation of China(21273065) the Research Foundation of Education Bureau of Hubei Province,China(Nos.Q20122205,B20132502)
关 键 词：Nanosilver chemical reduction method UV-vis spectrum surface plasmon resonance(SPR)
摘 要：Nanosilver has been applied in many fields including surface-enhanced Raman spectroscopy（SERS）,surface enhanced fluorescence（SEF）,biomedicine and other areas due to the its unique physical and chemical *** this paper,nanosilver equipped with uniform dispertion,controllable partical size and morphology was prepared by chemical reduction method in aqueous *** reaction can be carried out at room temperature（298.15K）by taking silver nitrate as the source,sodium borohydride as a reducing agent,sodium citrate tribasic dihydrate and Polyvinylpyrrolidone as protective ***,we focused on the effects of reaction time,temperature,protective agents and so forth on the experimental *** analysis of UV–vis spectra（Fig.1）showed that the surface plasmon resonance（SPR）absorption peaks of asprepared nanosilver appeared at about 400 nm and 650 nm,which demonstrated the formation of nanosilver corresponding to different morphologies and particle *** addition,sharp and smooth peaks indicated a uniform dispersion.