| Schiff碱改性法制备Ag/TiO2纳米粒子催化剂及其催化性能 |
| |
| 引用本文： | 喻龙宝,闫鹏洁,赵震,严玉,徐虎,张文鹏. Schiff碱改性法制备Ag/TiO2纳米粒子催化剂及其催化性能[J]. 应用化学, 2015, 32(6): 676-682. DOI: 10.11944/j.issn.1000-0518.2015.06.140363 |
| |
| 作者姓名： | 喻龙宝 闫鹏洁 赵震 严玉 徐虎 张文鹏 |
| |
| 摘 要： | 通过引入水杨醛衍生的Schiff 碱功能单体与钛酸正丁酯发生水解共缩聚反应,制备了二氧化钛负载的银纳米粒子催化剂。采用红外光谱分析仪(FTIR)、广角X射线衍射仪(Wide Angle XRD)、高分辨透射电子显微镜(HRTEM)和紫外-可见分光光度计(UV-Vis) 等技术手段对制得的样品进行了表征,并考察了样品催化CO氧化反应的活性。结果表明,通过改变Schiff碱功能单体的用量和样品焙烧温度可以调控Ag纳米粒子的粒径和TiO2载体的结构,从而可以调控Ag/TiO2纳米催化剂的活性。当Schiff碱功能单体用量为20%,焙烧温度为873 K时,Ag/TiO2纳米催化剂活性最好,CO转化率达到99.9%。
|
| 关 键 词： | Schiff碱 二氧化钛 银 纳米粒子 氧化反应 |
| 收稿时间： | 2014-10-22 |
Schiff Base-modification Synthesis of Ag/TiO2 Nanocatalysts and Their Catalytic Performance for CO Oxidation |
| |
| YU Longbao,YAN Pengjie,ZHAO Zhen,YAN Yu,XU Hu,ZHANG Wenpeng. Schiff Base-modification Synthesis of Ag/TiO2 Nanocatalysts and Their Catalytic Performance for CO Oxidation[J]. Chinese Journal of Applied Chemistry, 2015, 32(6): 676-682. DOI: 10.11944/j.issn.1000-0518.2015.06.140363 |
| |
| Authors: | YU Longbao YAN Pengjie ZHAO Zhen YAN Yu XU Hu ZHANG Wenpeng |
| |
| Affiliation: | School of Chemistry and Chemical Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013,China;State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing 102249,China;ENTC Nuclear Materials Technology(Jiangsu) Co.,Ltd,Zhenjiang,Jiangsu 212006,China |
| |
| Abstract: | The TiO2-supported Ag nanoparticles were prepared by hydrolytic polycondensation of titanium tetrabutoxide with salicylaldimine Schiff base functional monomer. The prepared Ag/TiO2 nanocatalysts were characterized by FTIR, XRD, HRTEM and UV-Vis, and tested for CO oxidation. The particle size of Ag nanoparticles and the structure of TiO2 supports can be controlled by the content of functional monomer and calcined temperature, and therefore, the catalytic activity of Ag/TiO2 nanocatalysts can be controlled. The maximum conversion of CO reached 99.9% for the sample with 20% of the functional monomer and calcined at 873 K. |
| |
| Keywords: | Schiff base titanium dioxide silver nanoparticle oxidation |
|
| 点击此处可从《应用化学》浏览原始摘要信息 |
|
点击此处可从《应用化学》下载全文 |
|
