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In-water-phase monodisperse sodium yttrium tetrafluoride multi-color luminescent nanoparticle and preparation method thereof

A technology of sodium tetrafluoroyttrium and nanoparticles, which is applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of complexity, particle aggregation and fluorescence weakening, etc., and achieve simple process, extremely biocompatibility, and good biocompatibility Effect

Inactive Publication Date: 2013-02-27
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation method with relatively mature conditions is to prepare nanoparticles with hydrophobic groups, and then invert the phase to obtain products with hydrophilic groups. This process is very complicated and will lead to the aggregation of particles and the weakening of fluorescence.

Method used

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  • In-water-phase monodisperse sodium yttrium tetrafluoride multi-color luminescent nanoparticle and preparation method thereof
  • In-water-phase monodisperse sodium yttrium tetrafluoride multi-color luminescent nanoparticle and preparation method thereof
  • In-water-phase monodisperse sodium yttrium tetrafluoride multi-color luminescent nanoparticle and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Prepare Y (NO 3 ) 3 , Yb (NO 3 ) 3 , Er (NO 3 ) 3 Rare earth salt solution; prepare a HCl solution with a concentration of 1mol / L; prepare a NaF solution with a concentration of 1mol / L;

[0033] 2. Add 0.1g of polyacrylic acid, 15ml of absolute ethanol, and 10mL of ethylene glycol to the reaction kettle in sequence, and stir until the solution is uniform;

[0034] 3. Continue to add 1.7ml of Y (NO 3 ) 3 Rare earth salt solution, 200 μl of Yb (NO 3 ) 3 Rare earth salt solution, 100 μl of Er(NO 3 ) 3 Rare earth salt solution, stirred for 10 minutes;

[0035] 4. Then add 4mL NaF solution to the reaction kettle, add slowly dropwise, and stir evenly;

[0036] 5. Finally, 600 μl of HCl solution was added to the solution, and magnetically stirred for 10 minutes;

[0037] 6. The reaction kettle was reacted at 190°C for 72 hours, cooled naturally, washed with deionized water, the solvent in the product was removed, and the product was dispersed with 4ml of deio...

Embodiment 2

[0039] 1. Prepare Y (NO 3 ) 3 , Yb (NO 3) 3 , Er (NO 3 ) 3 Rare earth salt solution; prepare a HCl solution with a concentration of 1mol / L; prepare a NaF solution with a concentration of 1mol / L;

[0040] 2. Add 0.1g of polyacrylic acid, 15ml of absolute ethanol, and 10mL of ethylene glycol to the reaction kettle in sequence, and stir until the solution is uniform;

[0041] 3. Continue to add 1.7ml of Y (NO 3 ) 3 Rare earth salt solution, 200 μl of Yb (NO 3 ) 3 Rare earth salt solution, 100 μl of Er(NO 3 ) 3 Rare earth salt solution, stirred for 10 minutes;

[0042] 4. Then add 6mL NaF solution to the reaction kettle, add slowly dropwise, and stir evenly;

[0043] 5. Finally, 600 μl of HCl solution was added to the solution, and magnetically stirred for 10 minutes;

[0044] 6. The reaction kettle was reacted at 190°C for 72 hours, cooled naturally, washed with deionized water, the solvent in the product was removed, and the product was dispersed with 4ml of deion...

Embodiment 3

[0046] 1. Prepare Y (NO 3 ) 3 , Yb (NO 3 ) 3 , Er (NO 3 ) 3 Rare earth salt solution; prepare a HCl solution with a concentration of 1mol / L; prepare a NaF solution with a concentration of 1mol / L;

[0047] 2. Add 15ml of absolute ethanol and 10mL of ethylene glycol to the reaction kettle in sequence, and stir until the solution is uniform;

[0048] 3. Continue to add 1.7ml of Y (NO 3 ) 3 Rare earth salt solution, 200 μl of Yb (NO 3 ) 3 Rare earth salt solution, 100 μl of Er(NO 3 ) 3 Rare earth salt solution, stirred for 10 minutes;

[0049] 4. Then add 4.35mL NaF solution to the reaction kettle, slowly add dropwise, and stir evenly;

[0050] 5. Finally, 600 μl of HCl solution was added to the solution, and magnetically stirred for 10 minutes;

[0051] 6. The reaction kettle was reacted at 190°C for 24 hours, and after natural cooling, it was centrifugally washed with deionized water, the solvent in the product was removed, and the product was dispersed with 4ml o...

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Abstract

The invention discloses an in-water-phase monodisperse sodium yttrium tetrafluoride ytterbium-and-erbium-doped multi-color upconversion luminescent nanoparticle and a preparation method thereof, belonging to the field of multifunctional application-oriented inorganic advanced nano materials. According to the method, a product is synthesized in one step through a hydrothermal method, and a sodium yttrium tetrafluoride nanoparticle capable of emitting light of different colors can be obtained by regulating the amount of NaF; and the particle which is uniform in size and is in morphology of cubic phases or hexagonal phases can be obtained through simple condition change. The sodium yttrium tetrafluoride multi-color luminescent nanoparticle can stably exist in water for long time, has excellent biocompatibility and can be directly used in hydrophilic systems of biosensors, cell imaging, magnetic resonance imaging, disease diagnosis and treatment and the like. The cost of raw materials is low, less pollution is caused to the environment, and the method is simple, so that the sodium yttrium tetrafluoride multi-color luminescent nanoparticle has wide application prospects in the field of biology and the fields such as thin-film materials, luminescent devices, anti-counterfeiting materials and the like. It is worth mentioning that the material has been successfully used in the field of cell imaging.

Description

technical field [0001] The invention belongs to the technical field of preparation of multifunctional application-type inorganic advanced nanometer materials, and particularly relates to monodisperse sodium tetrafluoroyttrium doped with ytterbium and erbium multicolor up-conversion luminescent nanoparticles in water phase and a preparation method thereof. It can be directly applied in the field of biomedicine, thin film materials, light emitting devices, anti-counterfeiting materials and other fields. technical background [0002] The rare earth up-conversion luminescent material refers to the sustainable emission of light with a wavelength shorter than the excitation wavelength under the excitation of long-wavelength light. Rare earth-doped upconversion luminescent nanomaterials have low excitation light energy, narrow emission spectrum, large Stokes shift, good chemical stability, high and stable luminous intensity, emission wavelength can be adjusted by controlling its co...

Claims

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Application Information

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IPC IPC(8): C09K11/85C09K11/02
Inventor 汪乐余李浩
Owner BEIJING UNIV OF CHEM TECH
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