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本文考察了利用甲基硅氧烷 (TMOS)和二甲基二甲氧基硅烷 (DiMe DMOS)为共先驱体制备的有机改性溶胶 凝胶 (sol gel)氧荧光敏感传感膜 ,比较了 5种不同配体的Ru配合物在不同极性溶剂和sol gel膜内的荧光行为 ,考察了膜极性的改变对Ru化合物荧光光谱的影响 ,以及氧对不同极性有机改性sol gel包埋Ru化合物荧光猝灭的程度。研究结果表明 ,在sol gel膜内 ,Ru化合物的荧光寿命都有不同程度的增加 ,同时对氧的猝灭程度增加。另外膜的极性对氧猝灭的程度也有很大的影响 ,增加膜的疏水性 ,将提高传感膜对氧浓度的响应
In this paper, the organic modified sol-gel oxygen fluorescence sensitive sensing films prepared by using methyl siloxane (TMOS) and dimethyldimethoxysilane (DiMe DMOS) as co-precursors were investigated. Fluorescence behavior of Ru complexes of five different ligands in different polar solvents and sol gel films. The influence of the change of membrane polarity on the fluorescence spectra of Ru compounds and the effect of oxygen on the solgel package The extent of fluorescence quenching of buried Ru compounds. The results show that in the sol gel film, the fluorescence lifetime of Ru compounds increases to some extent, and at the same time, the quenching degree of oxygen increases. In addition, the polarity of the membrane also has a significant effect on the extent of oxygen quenching and increasing the hydrophobicity of the membrane will increase the response of the sensing membrane to oxygen concentration