纳米稀土镧8-羟基喹啉间羟基苯甲酸/TiO_2的红外及拉曼光谱研究  

Study on Nano Lanthanide(Ⅲ) with Sodium m-Hydroxybenzoate Acid and 8-Hydroxyquinoline/TiO_2 by FT-IR and Raman Spectra

作　　者：闵慧[1] 何其庄[1] 杨静[1] 郁慧[1] 

机构地区：[1]上海师范大学生命与环境科学学院,上海市200234

出　　处：《光谱实验室》2005年第4期673-676,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：上海市科委科技攻关基金资助项目(No.0252nm082)

摘　　要：采用沉淀法/溶胶-凝胶复合方法制备了纳米稀土镧8-羟基喹啉间羟基苯甲酸/TiO2复合粒子。并应用红外和拉曼光谱对其进行了表征。红外光谱证明样品为稀土镧8-羟基喹啉间羟基苯甲酸/TiO2复合粒子。拉曼光谱证明其拉曼峰与文献报道的TiO2拉曼峰相比,部分峰位出现了蓝移,部分峰位出现了红移现象,从纳米粒子的表面结构及配合物层的压力出发对此现象进行了定性解释和讨论。Nano composite particle of lanthanide （Ⅲ）, sodium m-hydroxybenzoate acid and 8-hydroxyquinoline/TiO2 with average size about 20nm was prepared by precipitation/sol-gel method, and characterized by FT-IR and Raman spectrum. FT-IR spectra indicate that the sample is the composite particle of lanthanide （Ⅲ） with sodium m-hydroxybenzoate acid and 8-hydroxyquinoline/TiO2. Compared with TiO2 nano particle, some peaks in Raman spectrum shift to lower frequency, and some shift to higher frequency. The possible origin of the shift was discussed.

关 键 词：傅里叶变换红外光谱 拉曼光谱 纳米粒子 蓝移 

分 类 号：O657.33[理学—分析化学] O657.37[理学—化学]