Rare-earth organic complex light conversion agent and method of preparing the same
A rare-earth organic and light-transforming agent technology, which is applied in the direction of organic chemistry, chemical instruments and methods, and compounds containing elements of group 3/13 of the periodic table, can solve problems such as unsatisfactory utilization ratios, achieve low production costs, and improve Utilization rate, effect of improving luminous efficiency
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Embodiment 1
[0022] Embodiment 1: Take samarium oxide Sm in the ratio of 0.5:0.5 by molar ratio 2 o 3 and yttrium oxide Y 2 o 3 , dissolved in hydrochloric acid, heated to react to obtain chloride salt crystals, dissolved in absolute ethanol, and made into a solution I with a concentration of 1mol / L; Phenylphen was dissolved in absolute ethanol respectively to prepare solutions II and III with a concentration of 1 mol / L. Mix solutions I, II and III according to the molar ratio of crystalline salt, TTA, and o-phenanthroline phen in a ratio of 1:3:1, stir and react in a water bath at 40°C for 7 hours, adjust the pH value to 5 with NaOH, and obtain Precipitated product; precipitated for 2 hours, filtered the product, washed repeatedly with absolute ethanol and distilled water, dried and ground in an oven at 50°C, and obtained the light transfer agent Sm 0.5 Y 0.5 (TTA) 3 phen. The light converting agent emits 647nm red light under the excitation of 360nm-380nm ultraviolet light, especi...
Embodiment 2
[0023] Embodiment 2: Take samarium oxide Sm in the ratio of 0.3: 0.4: 0.3 by molar ratio 2 o 3 , Lanthanum Oxide La 2 o 3 and gadolinium oxide Gd 2 o 3 , dissolved in nitric acid, heated to react to obtain nitrate crystals, which were dissolved in absolute ethanol to obtain a solution I with a concentration of 1mol / L; -Bipyridine Dipy was dissolved in absolute ethanol respectively to prepare solutions II and III with a concentration of 1 mol / L. Mix solutions I, II and III according to the molar ratio of crystalline salt, TTA, and 2,2'-bipyridine Dipy at a ratio of 1:3:2, stir and react in a water bath at 60°C for 6 hours, and adjust the pH value to 6.5 with ammonia water, The precipitated product was obtained; after 1 hour of precipitation, the product was filtered, washed repeatedly with absolute ethanol and distilled water, dried and ground in an oven at 45°C, and the light converting agent Sm 0.3 La 0.4 Gd 0.3 (TTA) 3 Dipy 2 . The light converting agent emits red...
Embodiment 3
[0024] Embodiment 3: Take samarium oxide Sm in the ratio of 0.2:0.8 by molar ratio 2 o 3 and lanthanum oxide Gd 2 o 3, dissolved in phosphoric acid, heated and reacted to obtain phosphate crystals, dissolved in absolute ethanol to obtain a solution I with a concentration of 1mol / L; As solution II of 1mol / L, the synergistic ligand 2,2'-bipyridine Dipy and o-phenanthroline phen are dissolved in absolute ethanol at a molar ratio of 0.7:0.3 to form a solution with a concentration of 1mol / L III. Mix solutions I, II and III according to the molar ratio of crystal salt, TTA, 2,2'-bipyridine Dipy and o-phenanthroline phen in a ratio of 1:3:1, stir and react in a water bath at 70°C for 5 hours, and pass through Adjust the pH value to 5 with ammonia water, filter the obtained product after 2 hours of precipitation, wash repeatedly with absolute ethanol and distilled water, dry and grind in an oven at 60°C, and obtain the light converting agent Sm 0.2 Gd 0.8 (TTA) 3 Dipy 0.7 phen...
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