镍岛膜上对巯基苯甲酸的表面增强红外吸收光谱研究  

Surface-Enhanced Infrared Absorption Spectroscopy of the Para Mercaptobenzoic Acid on the Nickel-Island Film

作　　者：闫月荣[1,2] 李随源[2] 张艳青[1] 褚文娅 李双双[3] 赵伟[3] 周群[3] 李晓伟[1] 

机构地区：[1]苏州大学化学电源研究所,苏州215006 [2]焦作师范高等专科学校理工学院,焦作454000 [3]苏州大学材料与化学化工学部,苏州215123

出　　处：《光散射学报》2015年第2期119-122,共4页The Journal of Light Scattering

基　　金：河南省科技厅基础与前沿基金(112300410326);焦作市科技局基础与前言技术研究计划项目(208;211)

摘　　要：通过置换反应在金属铝表面制备了表面没有任何保护剂且具有红外增强作用的镍岛膜,用SEM、XRD和表面增强红外光谱对其形貌和性质进行表征。结果表明:铝片上沉积出的镍呈岛状结构,镍岛膜由大量的二次镍粒子和少量的一次镍粒子通过密堆积的方式构成;首次发现具有这种特殊结构的镍对吸附于其表面的有机分子的红外吸收光谱有较大的增强作用,使得表面增强红外光谱可以用于痕量分析、检测。A nickel film was prepared on the aluminum surface by replacement reaction. This film displayed enhancement effect in infrared spectrum with the film surface not protected. The morphology and characteristics were investigated by SEM, XRD and surface-enhanced infrared absorption spectroscopy. The results showed the close-packed deposition of nickel as an island structure on the aluminum surface,with the composition of a large number of sec- ondary nickel particles and small amounts of nickel particles. Such unique nickel island film enables a significant enhancement effect on infrared absorption spectrum of organic molecules which are adsorbed on the surface, suitable for trace analysis and testing through the surface- enhanced infrared spectroscopy.

关 键 词：镍岛膜 对巯基苯甲酸 表面增强红外吸收光谱 

分 类 号：O657.3[理学—分析化学]