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无机材料学报

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配合物[Fe(bipy)2]3+修饰的MCM-41的合成与表征

郑珊; 高濂; 郭景坤   

  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
  • 收稿日期:1999-11-26 修回日期:2000-01-05 出版日期:2000-12-20 网络出版日期:2000-12-20

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

ZHENG Shan; GAO Lian; GUO Jing-Kun   

  1. State Key Lab of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China
  • Received:1999-11-26 Revised:2000-01-05 Published:2000-12-20 Online:2000-12-20

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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．

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

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.

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

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