| Ag/Cu3(BTC)2复合催化剂的制备及其NH3-SCR催化性能 |
| |
| 引用本文： | 石勇,牛丹阳,武卓敏,刘震震,肇启东,熊巍,李新勇.Ag/Cu3(BTC)2复合催化剂的制备及其NH3-SCR催化性能[J].中国环境科学,2018,38(7):2445-2450. |
| |
| 作者姓名： | 石勇 牛丹阳 武卓敏 刘震震 肇启东 熊巍 李新勇 |
| |
| 作者单位： | 大连理工大学环境学院工业生态与环境工程教育部重点实验室和精细化工国家重点实验室, 辽宁 大连 116024 |
| |
| 基金项目： | 国家自然科学基金资助项目（21677022；51178076）；中央高校基本科研业务费专项基金（DUT17LK55） |
| |
| 摘 要： | 采用紫外还原的方法成功制备出Cu3（BTC）2（均苯三甲酸合铜）负载贵金属Ag纳米颗粒的Ag/Cu3（BTC）2复合催化剂，并用于氨法脱硝反应.应用X射线衍射（XRD）、透射电子显微镜（TEM）、BET测试等手段对催化剂的物理化学性能进行了表征.结果发现Ag纳米颗粒以球状结构高度均匀分散在Cu3（BTC）2骨架结构的表面.负载Ag纳米颗粒和Cu-MOF的协同作用，提高了Ag/Cu3（BTC）2催化剂的脱硝效率，负载量为15wt%的催化剂表现出最优脱硝效率，在220～260℃达到100%的NO转化率.同时，利用in-situ FTIR技术对NH3-SCR的反应机理进行了探究.
|
| 关 键 词： | 选择催化还原 金属有机框架化合物 Ag负载 氮氧化物 |
| 收稿时间： | 2017-12-25 |
Synthesis of Ag/Cu3(BTC)2 composite catalysts and their catalytic performance for NH3-SCR |
| |
| SHI Yong,NIU Dan-yang,WU Zhuo-min,LIU Zhen-zhen,ZHAO Qi-dong,XIONG Wei,LI Xin-yong.Synthesis of Ag/Cu3(BTC)2 composite catalysts and their catalytic performance for NH3-SCR[J].China Environmental Science,2018,38(7):2445-2450. |
| |
| Authors: | SHI Yong NIU Dan-yang WU Zhuo-min LIU Zhen-zhen ZHAO Qi-dong XIONG Wei LI Xin-yong |
| |
| Institution: | Key Laboratory of Industrial Ecology and Environmental Engineering(MOE) and State Key Laboratory of Fine Chemical, School of Environmental Science & Engineering, Dalian University of Technology, Dalian 116024, China |
| |
| Abstract: | Cu3(BTC)2 catalyst loaded with Ag nanoparticles was successfully prepared through UV reduction method, and was applied for NH3-SCR reaction. The physicochemical properties of Ag/Cu3(BTC)2 catalyst were characterized by XRD, TEM and BET. It was found that Ag nanoparticles showed a pherical structure and were highly dispersed on the skeleton structure surface of Cu3(BTC)2. The synergistic effect between Ag nanoparticles and Cu-MOF could significantly improve the denitrification efficiency of Ag/Cu3(BTC)2 catalyst. The Ag/Cu3(BTC)2 catalyst with 15wt% addition achieved a 100% NO conversion rate in temperatures range from 200 to 260℃. Furthermore, the reaction mechanism was proposed on basis of the results of in situ Fourier transform infrared spectroscopy. |
| |
| Keywords: | selective catalytic reduction metal organic frameworks Ag loading nitrogen oxides |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国环境科学》浏览原始摘要信息 |
| 点击此处可从《中国环境科学》下载免费的PDF全文 |
