Rare earth phosphate nano-phosphor and preparation method thereof
A rare earth phosphate and nano-phosphor technology, applied in chemical instruments and methods, luminescent materials, etc., can solve problems such as unfavorable practical application, narrow application range, high price, etc., and achieve stable and reliable process conditions, low cost, and particle size. small effect
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Embodiment 1
[0031] (Example 1, Rare Earth Phosphate Nano Phosphor Powder)
[0032] The rare-earth phosphate nano-phosphor powder of this embodiment includes a structural formula of Bi (1-y)PO 4 :yEu 3+ Nano-rare earth phosphate particles and adsorption on Bi (1-y) PO 4 :yEu 3+ A layer of oleate ions outside the nano-rare earth phosphate particles; the particle size of the nano-rare earth phosphate particles is 40-80nm, 0.05— It is adsorbed on the surface of nano-rare earth phosphate particles, while the organic long chain at the other end of the oleate ion as a lipophilic group is far away from the surface of nano-rare earth phosphate particles; Under the irradiation of 254nm ultraviolet rays, it emits red light visible to the naked eye.
Embodiment 2
[0033] (Example 2, Rare Earth Phosphate Nano Phosphor Powder)
[0034] The rare-earth phosphate nano-phosphor powder of this embodiment includes a structural formula of Bi (1-y) PO 4 :yTb 3+ Nano-rare earth phosphate particles and adsorption on Bi (1-y) PO 4 :yTb 3+ A layer of oleate ions outside the nano-rare earth phosphate particles; the particle size of the nano-rare earth phosphate particles is 40-80nm, 0.05— Adsorbed on the surface of nano-rare-earth phosphate particles, while the organic long chain at the other end of the oleate ion as a lipophilic group is far away from the surface of nano-rare-earth phosphate particles; It emits a green light visible to the naked eye under ultraviolet light.
Embodiment 3
[0035] (Example 3, Rare Earth Phosphate Nano Phosphor Powder)
[0036] The rare-earth phosphate nano-phosphor powder of this embodiment includes a structural formula of Bi (1-y) PO 4 :ySm 3+ Nano-rare earth phosphate particles and adsorption on Bi (1-y) PO 4 :ySm 3+ A layer of oleate ions outside the nano-rare earth phosphate particles; the particle size of the nano-rare earth phosphate particles is 40-80nm, 0.05— Adsorbed on the surface of nano-rare-earth phosphate particles, while the organic long chain at the other end of the oleate ion as a lipophilic group is far away from the surface of nano-rare-earth phosphate particles; It emits a light red light visible to the naked eye under ultraviolet light.
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