Preparation method for silver-nano composite material with fluorescent effect
A composite material and silver nanotechnology, applied in the field of fluorescent materials, can solve the problems of poor compatibility, poor passivation effect, and difficult formation of passivation film, etc., to achieve the effect of improving fluorescence efficiency
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Embodiment 1
[0025] Step 1. Mix tetrahydrofuran and indole uniformly according to the volume ratio of 2:1 to obtain a mixed solution, then add 4 g of chlorinated polyethylene to 50 mL of the mixed solution, and stir at 70 ° C until the chlorinated polyethylene is dissolved to obtain Chlorinated polyethylene solution;
[0026] Step 2: Pour 50mL of the chlorinated polyethylene solution described in Step 1 into 10mL of the silver-ammonia solution, form a two-phase solution in which the lower layer is an aqueous phase and the upper layer is an organic phase after layering, and then irradiates the two phases with infrared light solution, a milky yellow solid film is generated at the interface of the aqueous phase and the organic phase, and the solid film is taken out; the wavenumber of the infrared light is 1000cm -1 , the luminous flux is 500 lumens;
[0027] Step 3. Dry the solid film taken out in step 2 at 100°C, then place it in a tube furnace, and raise the temperature of the tube furnace...
Embodiment 2
[0030] Step 1. Mix tetrahydrofuran and indole uniformly according to a volume ratio of 3:1 to obtain a mixed solution, then add 3 g of chlorinated polyethylene to 50 mL of the mixed solution, and stir at 60 ° C until the chlorinated polyethylene is dissolved to obtain Chlorinated polyethylene solution;
[0031] Step 2: Pour 50mL of the chlorinated polyethylene solution described in Step 1 into 10mL of the silver-ammonia solution, form a two-phase solution in which the lower layer is an aqueous phase and the upper layer is an organic phase after layering, and then irradiates the two phases with infrared light solution, a milky yellow solid film is generated at the interface of the aqueous phase and the organic phase, and the solid film is taken out; the wavenumber of the infrared light is 600cm -1 , the luminous flux is 300 lumens;
[0032] Step 3. Dry the solid film taken out in step 2 at 95° C., then place it in a tube furnace, and raise the temperature of the tube furnace t...
Embodiment 3
[0034] Step 1. Mix tetrahydrofuran and indole uniformly at a volume ratio of 9:1 to obtain a mixed solution, then add 1 g of chlorinated polyethylene to 50 mL of the mixed solution, and stir at 50 ° C until the chlorinated polyethylene is dissolved to obtain Chlorinated polyethylene solution;
[0035]Step 2: Pour 50mL of the chlorinated polyethylene solution described in Step 1 into 10mL of the silver-ammonia solution, form a two-phase solution in which the lower layer is an aqueous phase and the upper layer is an organic phase after layering, and then irradiates the two phases with infrared light solution, a milky yellow solid film is generated at the interface of the aqueous phase and the organic phase, and the solid film is taken out; the wavenumber of the infrared light is 400cm -1 , the luminous flux is 100 lumens;
[0036] Step 3. Dry the solid film taken out in step 2 at 90°C, then place it in a tube furnace, and raise the temperature of the tube furnace to 200°C at a ...
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