Enhanced oxygen fluorescence sensitive film and preparation method thereof
A sensitive film and enhanced technology, applied in fluorescence/phosphorescence, chemical instruments and methods, luminescent materials, etc.
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Embodiment 1
[0023] 1) Dissolve the fluorescent substance in a certain solvent. In a preferred scheme, the bipyridine ruthenium complex [Ru(bpy) 3 ] 2+ Dissolved in ethanol to obtain a stock solution with a concentration of 5mmol / L;
[0024] 2) Preparation of fluorocarbon sol-gel stock solution: using propyltrimethoxysilane (PTMOS) and trifluoropropyltrimethoxysilane (TFP-TriMOS) as precursors, using ethanol as solvent, at pH=1 Hydrolysis under the catalysis of hydrochloric acid. In a preferred scheme, the volume percentages of PTMOS and TFP-TriMOS in the precursor are 16% and 34% respectively. Sonicate the mixed reagent for 1 hour; obtain fluorocarbon sol-gel;
[0025] 3) [Ru(bpy) 3 ] 2+ Add the ethanol solution of the fluorocarbon sol-gel solution and mix well. In the preferred scheme, [Ru(bpy) 3 ] 2+ The solution and the fluorocarbon sol-gel solution were ultrasonically mixed according to the volume ratio of 1:4 to obtain the [Ru(bpy)-containing 3 ] 2+ The sol-gel matrix;
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Embodiment 2
[0031] 1) Dissolve the fluorescent substance in a certain solvent. In a preferred scheme, the o-phenanthroline ruthenium complex [Ru(dpp) 3 ] 2+ Dissolved in methyl ethyl ketone to obtain a stock solution with a concentration of 10mmol / L;
[0032] 2) [Ru(dpp) 3 ] 2+ The methyl ethyl ketone solution is mixed evenly with polystyrene. In the preferred scheme, [Ru(dpp) 3 ] 2+ The solution and the polystyrene solution were ultrasonically mixed at a volume ratio of 1:4 to obtain [Ru(dpp) 3 ] 2+ polystyrene matrix;
[0033] 3) Ultrasonic dispersion of nano-titanium dioxide in the [Ru(dpp) 3 ] 2+ A sensitive membrane coating reagent was obtained in a polystyrene matrix. In the preferred version, the mass ratio of the two nanometer titanium dioxide particles is 4:1 (small particle size: large particle size), and the total concentration in the matrix is 60mg / mL;
[0034] 4) Coating the sensitive membrane coating reagent evenly on the glass slide, and drying in an oven at 8...
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