| Ag/SBA-15表面催化过程的现场SERS研究 |
| |
| 引用本文： | 蒋丽,刘伟,姚建林,陈彪,顾仁敖.Ag/SBA-15表面催化过程的现场SERS研究[J].化学学报,2011,69(20):2368-2372. |
| |
| 作者姓名： | 蒋丽 刘伟 姚建林 陈彪 顾仁敖 |
| |
| 作者单位： | (苏州大学材料与化学化工学部 苏州 215123) |
| |
| 基金项目： | 国家自然科学基金(Nos.20973120,21073128)资助项目 |
| |
| 摘 要： | 以三嵌段共聚物P123为模板剂, 正硅酸乙酯为硅源, 水热合成了介孔分子筛SBA-15, 通过对SBA-15内外表面修饰, 使用银氨溶液和硝酸银溶液作为金属源合成Ag/SBA-15, 透射电镜(TEM)研究表明在SBA-15孔道内较好地分散了颗粒状和棒状的Ag纳米粒子. 以苯硫酚作为探针分子, 研究了负载Ag纳米粒子的SBA-15的SERS效应, 结果表明Ag/SBA-15具有良好的SERS活性. 另外, 该材料对催化硼氢化钠还原对硝基苯酚具有良好的催化效果, 通过结合现场SERS技术, 研究了该催化过程的机理.
|
| 关 键 词： | 介孔分子筛SBA-15 Ag 表面增强拉曼光谱(SERS) 催化机理 |
In Situ SERS Studies of Catalytic Processes on Ag/SBA-15 |
| |
| Jiang,Li Liu,Wei Yao,Jianlin Chen,Biao Gu,Renao.In Situ SERS Studies of Catalytic Processes on Ag/SBA-15[J].Acta Chimica Sinica,2011,69(20):2368-2372. |
| |
| Authors: | Jiang Li Liu Wei Yao Jianlin Chen Biao Gu Renao |
| |
| Institution: | (College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123) |
| |
| Abstract: | Mesoporous molecular sieves SBA-15 were synthesized by conventional hydrothermal process using tetraethylorthosilicate(TEOS) as silicon source and triblock copolymer P123 as template.Ag/SBA-15 was fabricated in AgNO3 or Ag(NH3)2]NO3 solutions as the metal source after the inner and outer wall of SBA-15 were modified with functional molecules.The morphology of synthesized composite was charac-terized by transmission electron microscopy(TEM).The results showed that monodisperse Ag nanoparticles and nanorods ... |
| |
| Keywords: | mesoporous molecular sieve SBA-15 silver surface enhanced Raman spectroscopy(SERS) catalytic mechanism |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《化学学报》浏览原始摘要信息 |
| 点击此处可从《化学学报》下载免费的PDF全文 |
|
