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Rare earth ion co-doped near-infrared long-afterglow luminescent nano material as well as preparation method and application thereof

A technology of long afterglow luminescence and nanomaterials, which is applied in the direction of luminescent materials, nanotechnology, chemical instruments and methods, etc. It can solve the problems of limiting practical applications, the inability to have both afterglow emission performance and size of nanomaterials at the same time, and achieve enhanced afterglow performance , Excellent afterglow emission performance, simple preparation effect

Active Publication Date: 2021-11-12
XIAMEN INST OF RARE EARTH MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the afterglow emission performance and size of nanomaterials reported in the existing literature cannot be combined at the same time, which greatly limits the practical application of such materials in the field of in vivo imaging analysis.

Method used

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  • Rare earth ion co-doped near-infrared long-afterglow luminescent nano material as well as preparation method and application thereof
  • Rare earth ion co-doped near-infrared long-afterglow luminescent nano material as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Rare earth ion co-doped near-infrared long-lasting luminescence nanomaterial Zn 3 Ga 2 sn 2 o 10 :0.5%Cr 3+ ,0.1%Eu 3+ The preparation method comprises the steps:

[0028] First configure Cr(acac) with a concentration of 0.05M in advance 3 ethanol solution, 0.1M Eu(NO 3 ) 3 aqueous solution. Weigh 1.5mmol Zn(acac) according to the stoichiometric ratio 2 、1mmol Ga(acac) 2 , 1mmol Sn(CH 3 COO) 2 and 20 μL Cr(acac) 3 solution and 5 μL Eu(NO 3 ) 3 , place it in an Onyx Mortar. Then add a certain amount of ethanol for grinding to get Zn 3 Ga 2 sn 2 o 10 :0.5%Cr 3+ ,0.1%Eu 3+ Precursor. Put it into a muffle furnace for calcination at a temperature of 850°C for 2 hours, and then grind it with a certain amount of ethanol solution after cooling to room temperature to obtain the rare earth ion co-doped near-infrared long-lasting luminescent nanomaterial Zn 3 Ga 2 sn 2 o 10 :0.5%Cr 3+ ,0.1%Eu 3+ .

Embodiment 2

[0030] Rare earth ion co-doped near-infrared long-lasting luminescence nanomaterial Zn 3 Ga 2 sn 2 o 10 :0.5%Cr 3+ ,0.05%Eu 3+ The preparation method comprises the steps:

[0031] First configure Cr(acac) with a concentration of 0.05M in advance 3 ethanol solution, 0.1M Eu(NO 3 ) 3 aqueous solution. Weigh 1.5mmol Zn(acac) according to the stoichiometric ratio 2 、1mmol Ga(acac) 2 , 1mmol Sn(CH 3 COO) 2 and 20 μL Cr(acac) 3 solution and 2.5 μL Eu(NO 3 ) 3 , place it in an Onyx Mortar. Then add a certain amount of ethanol for grinding to get Zn 3 Ga 2 sn 2 o 10 :0.5%Cr 3+ ,0.1%Eu 3+ Precursor. Put it into a muffle furnace for calcination at a temperature of 850°C for 2 hours, and then grind it with a certain amount of ethanol solution after cooling to room temperature to obtain the rare earth ion co-doped near-infrared long-lasting luminescent nanomaterial Zn 3 Ga 2 sn 2 o 10 :0.5%Cr 3+ ,0.05%Eu 3+ .

Embodiment 3

[0033] Rare earth ion co-doped near-infrared long-lasting luminescence nanomaterial Zn 3 Ga 2 sn 2 o 10 :0.5%Cr 3+ ,0.5%Eu 3+ The preparation method comprises the steps:

[0034] First configure Cr(acac) with a concentration of 0.05M in advance 3 ethanol solution, 0.1M Eu(NO 3 ) 3aqueous solution. Weigh 1.5mmol Zn(acac) according to the stoichiometric ratio 2 、1mmol Ga(acac) 2 , 1mmol Sn(CH 3 COO) 2 and 20 μL Cr(acac) 3 solution and 25 μL Eu(NO 3 ) 3 , place it in an Onyx Mortar. Then add a certain amount of ethanol for grinding to get Zn 3 Ga 2 sn 2 o 10 :0.5%Cr 3+ ,0.1%Eu 3+ Precursor. Put it into a muffle furnace for calcination at a temperature of 850°C for 2 hours, and then grind it with a certain amount of ethanol solution after cooling to room temperature to obtain the rare earth ion co-doped near-infrared long-lasting luminescent nanomaterial Zn 3 Ga 2 sn 2 o 10 :0.5%Cr 3+ ,0.5%Eu 3+ .

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Abstract

The invention discloses a rare earth ion co-doped near-infrared long-afterglow luminescent nano material as well as a preparation method and application thereof, and belongs to the technical field of near-infrared long-afterglow luminescent materials. The chemical expression of the long-afterglow luminescent nano material is Zn3Ga2Sn2O10: xCr < 3 + >, yEu < 3 + >, wherein Cr < 3 + > and Eu < 3 + > are luminescent central ions, x is more than 0% and less than or equal to 1%, and y is more than 0% and less than or equal to 0.5%. A combustion method is adopted for preparation, acetylacetone metal salt is used as a precursor, the calcination temperature is 850 DEG C, and the calcination time is 2 hours. The synthesized long-afterglow material can be excited by a biological window and has near-infrared first-zone emission, and the afterglow performance of near-infrared first-zone emission is greatly enhanced by adjusting the proportion of doped ions to different values.

Description

technical field [0001] The invention belongs to the technical field of near-infrared long-afterglow luminescent materials, in particular to a rare earth ion co-doped near-infrared long-afterglow luminescent nanomaterial, its preparation method and application. Background technique [0002] Long afterglow luminescent material is a material that can store external radiation energy and continue to emit light after the excitation light source stops exciting. Because of its advantages of no need for in situ excitation, no tissue background fluorescence interference, and high signal-to-noise ratio, it has shown great application potential in medical imaging, biological analysis, and tumor diagnosis and treatment. However, near-infrared long-lasting nanomaterials used in in vivo imaging and analysis must have both long-lasting high-intensity afterglow emission performance and uniform small size. [0003] However, the afterglow emission performance and size of nanomaterials reporte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/66B82Y40/00
CPCC09K11/773B82Y40/00Y02B20/00
Inventor 史俊朋张云王若平
Owner XIAMEN INST OF RARE EARTH MATERIALS
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