配合物[Fe(bipy)2]3+修饰的MCM-41的合成与表征

无机材料学报, 2000, 15(6): 1015-1020. doi: 10.3321/j.issn:1000-324X.2000.06.010

配合物[Fe(bipy)2]3+修饰的MCM-41的合成与表征

郑珊 ^1, , 高濂 ^2, , 郭景坤 ^3,

1.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

2.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

3.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

关键词：介孔分子筛MCM-41 , γ -氨丙基修饰的MCM-41 , MCM-ap-Fe(bipy)2

Synthesis and Characterization of Irom(Ⅲ)2,2'-Bipyridine Complex Furnctionalized MCM-41 Molecular Sieves

Keywords： MCM-41 molecular sieves , γ-aminopropyl modified MCM-41 , metal ion complex functionalized MCM-41

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．

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.

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