Synthesis and application of an inorganic-organic hybrid europium phosphate photochromic material
A photochromic material and organic hybrid technology, applied in the direction of color-changing fluorescent materials, organic chemistry, organic chemical methods, etc., can solve the problem of not being able to meet the needs of the market, and achieve the effect of long color retention time and rapid light response.
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Embodiment 1
[0028] Embodiment 1 Synthetic method and application of a kind of inorganic-organic hybrid europium phosphate photochromic material
[0029] Using europium nitrate hexahydrate, 4,4'-bipyridyl, phosphorous acid, choline chloride and oxalic acid as ionic solvents, reacted at 100°C for 7 days to synthesize a new type of photochromic material.
[0030] Add 1 mmol of europium nitrate hexahydrate, 1 mmol of 4,4'-bipyridine, 8 mmol of phosphorous acid, 5.5 mmol of choline chloride, and 10 mmol of oxalic acid into a 25 mL polytetrafluoroethylene-lined stainless steel kettle, and finally seal the reaction kettle Put it into a 100°C oven and heat it for 7 days.
[0031] After the reaction was completed, the reactor was taken out and allowed to cool naturally at room temperature; the product was removed, ultrasonically washed three times with deionized water, and dried at 70°C.
[0032] The characterization of the synthetic product is as follows:
[0033] Such as figure 1 As shown, th...
Embodiment 2
[0039] Embodiment 2 A kind of synthesis method and application of inorganic-organic hybrid europium phosphate photochromic material
[0040] Using europium chloride, 4,4'-bipyridine, phosphorous acid, choline chloride and malonic acid as ionic solvents, reacted at 140°C for 8 days to synthesize a new type of photochromic material.
[0041] Add 1mmol of europium chloride, 2mmol of 4,4'-bipyridine, 4mmol of phosphorous acid, 11mmol of choline chloride, and 20mmol of malonic acid into a 25mL polytetrafluoroethylene-lined stainless steel kettle, and finally seal the reaction kettle Put into the oven of 140 ℃ and heat for 8 days.
[0042] After the reaction was completed, the reactor was taken out and allowed to cool naturally at room temperature; the product was removed, ultrasonically washed three times with deionized water, and dried at 70°C.
[0043] The characterization of the synthetic product is as follows:
[0044] Such as Figure 7 As shown, the crystal obtained in Exam...
Embodiment 3
[0049] Embodiment 3 A kind of synthesis method and application of inorganic organic hybrid europium phosphate photochromic material
[0050] Using europium oxide, 4,4'-bipyridine, phosphorous acid, choline chloride and citric acid as ionic solvents, reacted at 150°C for 2 days to synthesize a new type of photochromic material.
[0051] Add 1mmol of europium oxide, 1mmol of 4,4'-bipyridyl, 2mmol of phosphoric acid, 20mmol of choline chloride and 30mmol of citric acid into a 25mL polytetrafluoroethylene-lined stainless steel kettle, and finally seal the reaction kettle and put it into a 150 ℃ oven for 2 days.
[0052] After the reaction was completed, the reactor was taken out and allowed to cool naturally at room temperature; the product was removed, ultrasonically washed three times with deionized water, and dried at 70°C.
[0053] The characterization of the synthesized product is as follows: the obtained crystal material has strong red fluorescence under the irradiation of ...
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