Synthesis, characterization, and oxygen sensing properties of functionalized mesoporous SBA-15 and MCM-41 with a covalently linked Ruthenium(II) complex

	Synthesis, characterization, and oxygen sensing properties of functionalized mesoporous SBA-15 and MCM-41 with a covalently linked Ruthenium(II) complex
其他题名	论文其他题名
	Lei B. F.; Li B.; Zhang H.; Zhang L. M.; Li W. L.
	2007
发表期刊	Journal of Physical Chemistry C
ISSN	1932-7447
卷号	111 期号:30 页码:11291-11301
摘要	Novel oxygen sensing materials consisting of the [ Ru( dpp)(2)Phen](2+) ( dpp) 4, 7-diphenyl-1,10-phenanthroline, Phen) 1,10-phenanthroline) portion covalently grafted to the ordered functionalized mesoporous SBA-15 and MCM-41 backbones are prepared by co-condensation of tetraethoxysilane ( TEOS) and the functionalized Ru( II) complex [ Ru( dpp)(2)Phen-Si](2+) (Phen- Si) 2-[4'- {3-(Triethoxysilyl) propyl} phenyl] imidazo [4,5-f]- 1,10- phenanthroline) in the presence of Pluronic P123 or cetyltrimethylammoniumbromide (CTAB) surfactant as template, respectively. 1,10- Phenanthroline covalently grafted to 3-(triethoxysilyl) propyl isocyanate is used not only as the precursors but also as the second ligand of the Ru( dpp)(2)Cl-2, 2H2O complex to prepare the functionalized mesoporous materials for oxygen sensors. For comparative purposes, two different synthesis procedures, including the one-pot synthesis and the postsynthetic treatment methods, are used to prepare the covalently grafted samples. Furthermore, the oxygen sensing materials in which [ Ru( dpp) 2Phen] 2+ is conventionally physically incorporated into the matrix are also prepared. The derivative mesoporous oxygen sensing materials are characterized by Fourier transform infrared (FT-IR), scanning electron microscopy ( SEM), small-angle X-ray diffraction, luminescence intensity quenching Stern-Volmer plots, nitrogen adsorption/ desorption, elemental analysis, and excited-state decay analysis. The functionalized mesoporous sensing materials appear to be highly sensitive to the O-2 concentration in N-2. In addition, these mesoporous sensing materials exhibit short response times and can be restored within seconds. The oxygen quenching result shows that the homogeneity and the sensitivity of the covalently assembled samples are superior to those of the physically incorporated ones. Furthermore, a greatly minimized leaching effect of the sensing molecules could be observed in the covalently grafted systems. In addition, the Ru( II) Phen- MCM-41 oxygen sensing materials show an overall increase in luminescent lifetime compared with the Ru( II) Phen- SBA-15 oxygen sensing materials, which is explained in detail by the difference of Ru( II) content and pore structure between the two kinds of mesoporous oxygen sensing materials.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/26591
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Lei B. F.,Li B.,Zhang H.,et al. Synthesis, characterization, and oxygen sensing properties of functionalized mesoporous SBA-15 and MCM-41 with a covalently linked Ruthenium(II) complex[J]. Journal of Physical Chemistry C,2007,111(30):11291-11301.
APA	Lei B. F.,Li B.,Zhang H.,Zhang L. M.,&Li W. L..(2007).Synthesis, characterization, and oxygen sensing properties of functionalized mesoporous SBA-15 and MCM-41 with a covalently linked Ruthenium(II) complex.Journal of Physical Chemistry C,111(30),11291-11301.
MLA	Lei B. F.,et al."Synthesis, characterization, and oxygen sensing properties of functionalized mesoporous SBA-15 and MCM-41 with a covalently linked Ruthenium(II) complex".Journal of Physical Chemistry C 111.30(2007):11291-11301.

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