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.
参考文献
[1] | Beck J S, Vartuli J C, Roth W J, et al. J. Am. Chem. Soc., 1992, 114: 10834-10843. |
[2] | Kresge C T, Leonowicz M E, Roth W J, et al. Nature, 1992, 359: 710-712. |
[3] | Moller K, Bein T. Chem. Mater., 1998, 10: 2950-2962. |
[4] | O'Brien S, Keates J M, BarIow S. Chem. Mater., 1998, 10: 4088-4099. |
[5] | Sutra P, Brunel D, Chem. Commun., 1996, 2485-2486. |
[6] | Van Rhijn W M, De Vos D E, Sels B F, et al. Chem. Commun. 1998, 317-318. |
[7] | Corma A, Martinez A, Martinez-Soria V, et al. J. Catal. 1995, 153: 25-31. |
[8] | Ozin G A, Ozkar S. Chem. Mater., 1992, 4: 511-521. |
[9] | Luan Z, Xu J, Kevan L, Chem. Mater., 1998, 10: 3699-3706. |
[10] | Rao R R, Weckhuysen B M, Schoonheydt R A. Chem. Commun., 1999, 445-446. |
[11] | Addison C C, Kilner M. Chem. Commun., 1966, 1249-1250. |
[12] | Grun M, Lauer I, Ungr K K. Adv. Mater., 1997, 9: 254-256. |
[13] | 沈昊宇,廖代正,姜宗慧.化学学报,1999,57:316-320. |
[14] | Arsov L D. J. Solid State Electrochem., 1998, 2: 266-272. |
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