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配合物[Fe(bipy)2]3+修饰的MCM-41的合成与表征

Synthesis and Characterization of Iron(Ⅲ) 2,2’-Bipyridine Complex Functionalized MCM-41 Molecular Sieves

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【作者】 郑珊高濂郭景坤

【Author】 ZHENG Shan, GAO Lian, GUO Jing-Kun (State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China)

【机构】 中国科学院上海硅酸盐所高性能陶瓷与超微结构国家重点实验室!上海200050

【摘要】 以γ-氨丙基修饰介孔分子筛MCM-41内孔壁,将引入的γ-氨丙基与金属配位离子[Fe(bipy)2]3+通过配位键首次合成了金属配位化合物修饰的MCM-41(MCM-ap-Fe(bipy)2).通过XRD,77K氮气吸附-脱附曲线,固体UV-vis漫反射光谱和循环伏安曲线表征了复合物MCM-ap-Fe(bipy)2。由于[Fe(bipy)2]3+的引入,使 MCM-ap-Fe(bipy)2的结晶度降低, BET比表面积、孔容和最可几孔径急剧下降.γ-氨丙基与Fe3+的配位而使其UV-vis漫反射吸收光谱与MCM-Fe(bipy)2不同;循环伏安特性曲线表明MCM-ap-Fe(bipy)2在电化学上比浸渍法制备的MCM-Fe(bipy)2稳定.

【Abstract】 The modification of the inner surface walls of mesoporous MCM-41 molecular sieves with γ-aminopropyl yielded amine groups functional MCM-41. Iron(Ⅲ) 2’2-bipyridine complex grafted onto the functional MCM-41 via the coordination of iron ion with grafted amine group. The complex functionalized MCM-41 was characterized by XRD, N2 sorption at 77K, and solid state diffuse reflectance UV-vis spectroscopy as well as cyclic voltammetry (CV). It has low crystalline and the BET surface areas, pore volume and main pore diameters decreased shapely compared to MCM-41 because of the introduction of γ-aminopropyl and [Fe(bipy)2]3+. Furthermore, the spectra of UV-vis and CV studies suggested the nature and electroactivity of iron ion complex functionalized MCM-41 differed from iron ion complex impregnated MCM-41.

  • 【文献出处】 无机材料学报 ,Journal of Inorganic Materials , 编辑部邮箱 ,2000年06期
  • 【分类号】O611
  • 【被引频次】2
  • 【下载频次】96
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