金纳米多面体的制备、表征及光学性质  

Preparation,characterization and optical properties of gold nanopolyhedrons

作　　者：刘元君[1] 张美娟[1] 黄峥[1] 袁爱华[1] 朱国兴[2] 

机构地区：[1]江苏科技大学生物与化学工程学院,江苏镇江212003 [2]江苏大学化学化工学院,江苏镇江212013

出　　处：《江苏科技大学学报（自然科学版）》2012年第4期397-400,共4页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：国家自然科学基金资助项目(51102117);校人才引进基金资助项目(35211103)

摘　　要：在晶种存在的条件下,以十六烷基三甲基氯化铵为表面活性剂,抗坏血酸为还原剂制备纳米金多面体.研究了还原剂的浓度、晶种的含量对产物的影响,用透射电子显微镜和紫外-可见分光光度计表征产物的形貌及光学性质.结果表明:控制抗坏血酸的浓度可获得十二面体、立方块以及不规则多边形结构,晶种的含量在一定程度上也影响产物的形貌.Gold nanopolyhedrons were acid as reducing agent in the presence prepared using cetyhrimethylammonium of seed. The influences of concentration chloride as surfactant, ascorbic of reducing agent and amount of seed were investigated. The morphologies and optical properties of the obtained nanostructure were characterized by transmission electron microscopy （TEM） and UV-Vis spectrophotometer, respectively. The result shows that dodecahedron, cube and irregular polyhedron can be obtained by controlling the concentration of ascorbic acid. The amount of seed also affects the morphology of the products.

关 键 词：金纳米多面体 晶种生长法 表征 光学性质 

分 类 号：O657[理学—分析化学]