Synthesis and application of an inorganic-organic hybrid gallium oxalate photochromic material
A technology of photochromic materials and organic hybridization, applied in the direction of color-changing fluorescent materials, chemical instruments and methods, photometry, etc., can solve the problems of complex, difficult materials, high purity, inability to dope, low-cost large-area synthesis, etc.
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Embodiment 1
[0030] Embodiment 1 Synthesis and application of a kind of inorganic-organic hybrid gallium oxalate photochromic material
[0031]Gallium nitrate, 4,4'-bipyridine, phosphorous acid, choline chloride and oxalic acid were used as ionic solvents and reacted at 140°C for 3 days to synthesize a new type of photochromic crystal.
[0032] Add 1.0mmol of gallium nitrate, 1.5mmol of 4,4'-bipyridine, 1.0mmol of phosphorous acid, 10mmol of choline chloride and 12mmol of oxalic acid into a 25mL polytetrafluoroethylene-lined stainless steel kettle, and finally seal the reaction kettle Put it into an oven at 140° C. and heat it for 3 days.
[0033] 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, dried at 70°C, and finally the desired crystal was obtained.
[0034] The prepared crystal characterization results are as follows:
[0035] Such as figu...
Embodiment 2
[0048] Embodiment 2 Synthesis and application of an inorganic-organic hybrid gallium oxalate photochromic material
[0049] Gallium oxide, 4,4'-bipyridine, choline chloride and oxalic acid were used as ionic solvents to react at 110°C for 2 days to synthesize a new type of photochromic crystal.
[0050] Add 0.5mmol of gallium oxide, 2mmol of 4,4'-bipyridine, 5.5mmol of choline chloride, and 20mmol of oxalic acid into a 25mL polytetrafluoroethylene-lined stainless steel kettle, and finally seal the reaction kettle and place it at 110°C heated in the oven for 2 days.
[0051] 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, dried at 70°C, and finally the desired crystal was obtained.
[0052] The prepared crystal characterization results are as follows:
[0053] The obtained crystal has good photochromic property, can change color rapid...
Embodiment 3
[0054] Example 3 Synthesis and application of an inorganic-organic hybrid gallium oxalate photochromic material
[0055] Gallium oxyhydroxide, 2,2'-bipyridyl, phosphorous acid, choline chloride and oxalic acid were used as ionic solvents to react at 150°C for 13 days to synthesize a new type of photochromic crystal.
[0056] Add 1.0mmol of gallium oxyhydroxide, 1mmol of 2,2'-bipyridine, 8.0mmol of phosphorous acid, 20mmol of choline chloride, and 40mmol of oxalic acid into a 25mL polytetrafluoroethylene-lined stainless steel kettle, and finally seal the reaction kettle Put into the oven of 150 ℃ and heat for 13 days.
[0057] 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, dried at 70°C, and finally the desired crystal was obtained.
[0058] The prepared crystal characterization results are as follows:
[0059] The obtained crystal h...
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