Preparation method and application of near-ultraviolet light conversion emitting red fluorescence material
A technology of red fluorescence and near-ultraviolet light, which is applied in the directions of luminescent materials, chemical instruments and methods, sustainable buildings, etc., to achieve the effects of simple preparation method, uniform distribution and low production cost
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Embodiment 1
[0038] According to the chemical formula Lu 0.9999 Eu 0.0001 Zn 7 AlO 10 The stoichiometric ratio of each element in the lutetium oxide Lu was weighed respectively 2 o 3 : 1.989 g, europium oxide Eu 2 o 3 : 0.0002 g, zinc oxide ZnO: 5.697 g, aluminum oxide Al 2 o 3 : 0.520 g, add an appropriate amount of acetone to the agate mortar, mix and grind evenly, then pre-calcine in the air atmosphere, calcined at 350 ° C for 2 hours and cool in the furnace, take out the sample and use the same method again for the pre-calcined raw materials Thoroughly mix and grind evenly, calcinate again in air atmosphere, sinter at 750°C for 2 hours, cool to room temperature, and take out the sample. Finally, the mixture was fully mixed and ground evenly again, sintered at 1050°C for 2 hours in an air atmosphere, cooled to room temperature, taken out and fully ground to obtain a sample.
[0039] See attached figure 1 , is the X-ray powder diffraction pattern of the sample prepared by the t...
Embodiment 2
[0044] According to the chemical formula Lu 0.999 Eu 0.001 Zn 7 AlO 10 The stoichiometric ratio of each element in , respectively weighed lutetium nitrate Lu (NO 3 ) 3 •H 2 O: 0.945 g, europium nitrate Eu (NO 3 ) 3 •6H 2 O: 0.001 g, zinc nitrate Zn (NO 3 ) 3 •6H 2 O: 5.206 grams, aluminum nitrate Al(NO 3 ) 3 •9H 2 O: 0.938 g, add an appropriate amount of acetone to the agate mortar, mix and grind evenly, then pre-calcine in the air atmosphere, calcined at 450 ° C for 4 hours and cool in the furnace, take out the sample and use the same pre-calcined raw material again Methods Mix well and grind evenly, calcinate again in air atmosphere, sinter at 800°C for 4 hours, cool to room temperature, and take out the sample. Finally, the mixture was fully mixed and ground evenly again, sintered at 1100°C for 4 hours in an air atmosphere, cooled to room temperature, and fully ground to obtain a sample after taking it out.
[0045] The X-ray powder diffraction pattern, excit...
Embodiment 3
[0047] According to chemical formula Y 0.99 Eu 0.01 Zn 7 AlO 10 The stoichiometric ratio of each element in the yttrium oxide Y 2 o 3 : 0.559 g, europium oxide Eu 2 o 3 : 0.018 g, zinc carbonate ZnCO 3 : 4.390 g, aluminum carbonate Al 2 (CO 3 ) 3 : 0.585 g, after adding an appropriate amount of acetone into the agate mortar, mixing and grinding evenly, pre-calcining in the air atmosphere, calcining at 500 ° C for 6 hours and cooling in the furnace, taking out the sample and using the same method again for the pre-calcined raw materials Mix well and grind evenly, calcinate again in air atmosphere, sinter at 850°C for 6 hours, cool to room temperature, and take out the sample. Finally, the mixture was fully mixed and ground evenly again, sintered at 1150°C for 6 hours in an air atmosphere, cooled to room temperature, taken out and fully ground to obtain a sample.
[0048] The X-ray powder diffraction pattern, excitation spectrum, fluorescence spectrum, luminescence de...
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