Zr-MFI分子筛的制备  

Synthesis of Au/Zr-MFI Molecular Sieve

作　　者：裴园园 郑玉华[1] 孙立波[1] 苏慧娟[1] 孙逊[1] 彭爽 祁彩霞[1] 

机构地区：[1]山东省黄金工程技术研究中心,烟台大学化学化工学院,山东烟台264005

出　　处：《山东化工》2017年第24期1-3,7,共4页Shandong Chemical Industry

基　　金：国家自然科学基金(21606189);国家自然科学基金(21603181)

摘　　要：以正硅酸四乙酯为硅源,锆酸四丁酯为锆源,四丙基氢氧化铵为模板剂,采用水热法合成Zr-MFI分子筛。采用XRD、UV-Vis、FT-IR、TEM等手段表征了载体的结构。结果表明,合成的Zr-MFI分子筛具有五元环MFI结构。该分子筛为尺寸均一、分散性良好、直径约为240~280 nm的圆柱体;UV-Vis证实了Zr物种成功进入到分子筛骨架。通过负载纳米金颗粒制备催化剂Au/Zr-MFI,并将其应用于对硝基苯酚还原反应,该催化剂表现出良好的催化活性。Zr-MFI molecular sieves with different molar ratio of n( Si/Zr) were hydrothermally synthesized, using tetraethoxysilane and zirconium n-butoxide as silicon and zirconium sources,respectively,and tetrapropyl ammonium hydroxide as the template. The structure of the molecular sieve was characterized by XRD,UV-Vis and FT-IR. The results showed that the molecular sieve possesses MFI structure with five-membered ring. TEM analysis indicates that the molecular sieve is well-crystallized cylinder with diameter of 240 ~ 280 nm. UV-Vis characterization confirmed the entrance of Zr into the zeolite framework. Au/Zr-MFI molecular sieve catalysts for P-nitrophenol reduction exhibited better reaction acitivity.

关 键 词：Zr-MFI分子筛 水热法 骨架锆 对硝基苯酚还原 

分 类 号：O643.36[理学—物理化学]