Nano-material having both magnetic property and rear earth property luminescent performance and preparation method thereof
A technology of luminescent properties and nanomaterials, applied in magnetic materials, luminescent materials, chemical instruments and methods, etc., can solve problems such as light energy waste, and achieve good monochromaticity and good biocompatibility.
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Embodiment 1
[0034] 1) Preparation of rare earth chlorides
[0035] Dissolve rare earth oxides in hydrochloric acid under heating conditions, the molar ratio of rare earth oxides:hydrochloric acid is 1:3, and evaporate excess hydrochloric acid until the hydrochloric acid is completely evaporated to obtain rare earth chloride TbCl 3 , and then the resulting rare earth chloride TbCl 3 Make a solution with a concentration of 0.1mmol / L in absolute ethanol;
[0036] 2) Synthesis of Fe3O4 nanoparticles
[0037] Under the condition of mechanical stirring at 1000 rpm, the FeCl 3 : FeSO 4 ·7H 2 FeCl with O molar ratio of 1:5 3 Aqueous solution and FeSO 4 ·7H 2 O hydrochloric acid solution is mixed and added to 0.7M ammonia solution, wherein, FeCl 3 Aqueous solution and FeSO 4 ·7H 2 O hydrochloric acid solution concentration is 1mmol / L, FeCl 3 solution and FeSO 4 ·7H 2 The weight ratio of O hydrochloric acid solution and ammonia solution is 1: 5: 300, and the black precipitate is produc...
Embodiment 2
[0045] 1) Preparation of rare earth chlorides
[0046] Dissolve rare earth oxides in hydrochloric acid under heating conditions, the molar ratio of rare earth oxides:hydrochloric acid is 1:3, and evaporate excess hydrochloric acid until the hydrochloric acid is completely evaporated to obtain rare earth chloride TbCl 3 , and then the resulting rare earth chloride TbCl 3 In absolute ethanol, make a solution with a concentration of 1mmol / L;
[0047] 2) Synthesis of Fe3O4 nanoparticles
[0048] Under the condition of mechanical stirring at 1000 rpm, the FeCl 3 : FeSO 4 ·7H 2 FeCl with O molar ratio of 1:5 3 Aqueous solution and FeSO 4 ·7H 2 O hydrochloric acid solution is mixed and added to 0.7M ammonia solution, wherein, FeCl 3 Aqueous solution and FeSO 4 ·7H 2 O hydrochloric acid solution concentration is 1mmol / L, FeCl 3 solution and FeSO 4 ·7H 2 The weight ratio of O hydrochloric acid solution and ammonia solution is 1: 5: 300, and the black precipitate is produce...
Embodiment 3
[0056] 1) Preparation of rare earth chlorides
[0057] Dissolve rare earth oxides in hydrochloric acid under heating conditions, the molar ratio of rare earth oxides:hydrochloric acid is 1:3, and evaporate excess hydrochloric acid until the hydrochloric acid is completely evaporated to obtain rare earth chloride TbCl 3 , and then the resulting rare earth chloride TbCl 3 Make a solution with a concentration of 0.5mmol / L in absolute ethanol;
[0058] 2) Synthesis of Fe3O4 nanoparticles
[0059] Under the condition of mechanical stirring at 1000 rpm, the FeCl 3 : FeSO 4 ·7H 2 FeCl with O molar ratio of 1:5 3 Aqueous solution and FeSO 4 ·7H 2 O hydrochloric acid solution is mixed and added to 0.7M ammonia solution, wherein, FeCl 3 Aqueous solution and FeSO 4 ·7H 2 O hydrochloric acid solution concentration is 1mmol / L, FeCl 3 solution and FeSO 4 ·7H 2 The weight ratio of O hydrochloric acid solution and ammonia solution is 1: 5: 300, and the black precipitate is produc...
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