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Fe3O4/Ag复合纳米材料的制备及SERS研究
引用本文:施建珍,王玮,金永龙,宋德江,徐宜泽,方靖淮.Fe3O4/Ag复合纳米材料的制备及SERS研究[J].中国材料科技与设备,2012(6):33-35.
作者姓名:施建珍  王玮  金永龙  宋德江  徐宜泽  方靖淮
作者单位:[1]南通大学理学院,江苏南通226007 [2]南通大学杏林学院,江苏南通226007
基金项目:国家自然科学基金资助项目(30970754);南通市应用研究项目(K2010059);南通大学杏林学院科研基金资助项目(2010K102)
摘    要:采用乙酰丙酮铁作为有机前驱体盐,在二苄基醚溶液中,以油酸、油胺为表面活性剂,十六醇作为“分解促进剂”,分解前驱体乙酰丙酮铁,制备四氧化三铁纳米颗粒。以四氧化三铁纳米颗粒为“种子”,加入醋酸银,以油胺为还原剂,制备Fe3O4/Ag复合磁性纳米材料。利用透射电子显微镜对纳米材料的形貌进行了表征,通过紫外~可见吸收光谱和拉曼光谱仪对纳米材料的表面增强拉曼散射光谱进行表研究,采用铷硼磁铁对磁性纳米材料的磁性进行初步研究。实验结果表明:FelO2/Ag复合磁性纳米颗粒既具有磁性又具有贵金属光谱特性;相对Fe304而言,Fe3O4/Ag复合纳米粒子具有更好的s隙S增强效果。

关 键 词:复合纳米材料  四氧化三铁  SERS

Preparation and SERS of Fe3O4/Ag Nanocomposites Properties
Affiliation:SHI J ian--zhen1,2. , WANG Wei1, J IN Yong--long1, SONG De --jiang1, XU Yi -ze1, FANG Jing --huai1 (1. College of Science, Nantong University, Jiangsu , Nantong, 226007, China; 2. Xing linCollege, Nantong University, Jiangsu , Nantong, 226007, China)
Abstract:In this paper using acetyl acetone iron as organic precursor body salt, in the ether solution components simply, oleic acid, oil amine for surfactant, sixteen alcohol as "decomposition promoting agents", decomposition acetyl acetone iron body precursor, Preparation Fe3O4 nanoparticles. With the above Fe3O4 nanoparticles for "seed", join acetic acid silver, oil amine for reducing agent, the preparation FeaO4/Ag nanoparticles. The use of magnets for a preliminary study of the magnetic properties of nanoparticles, using transmission electron microscopy (TEM), UV--visible absorption spectroscopy (UV--Vis) conducted a study of surface morphology and spectral characteristics of the nanoparticles, crystal violet as a probe molecule to characterize by Raman spectroscopy to the nanoparticle surface enhanced Raman scattering spectroscopy. Studies have shown that the composite magnetic nanoparticles have magnetic and spectral characteristics of precious metals. Relative to Fe3 O4 nan- oparticles is concerned, Fe3O4/Ag nanoparticles have better SERS enhancement.
Keywords:Composite Nan--materials  Fe3O4  SERS
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