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Rare-earth-doped Li4ZrF8 nano-luminescence material with porous structure and preparation method and application thereof

A lithium zirconium fluoride and rare earth doping technology, which is applied in the direction of luminescent materials, chemical instruments and methods, can solve the problems of few reports and few studies on alkali metal transition metal fluoride systems, and achieve good repeatability and synthesis conditions Easy to control, huge potential for effects

Active Publication Date: 2017-09-15
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research on rare earth-doped fluoride luminescent host materials mainly focuses on sodium yttrium fluoride (NaYF 4 ), sodium gadolinium fluoride (NaGdF 4 ) or lithium yttrium fluoride (LiYF 4 ) and other alkali metal rare earth fluoride systems, but there are few studies on alkali metal transition metal fluoride systems, especially the research on alkali metal transition metal fluoride systems based on transition metal zirconium is rarely reported.
In addition, we noticed that most of the rare earth-doped inorganic nanomaterials prepared so far are solid nanospheres, nanorods, etc., but rare earth-doped inorganic nanomaterials with porous structures have not been reported so far.

Method used

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  • Rare-earth-doped Li4ZrF8 nano-luminescence material with porous structure and preparation method and application thereof
  • Rare-earth-doped Li4ZrF8 nano-luminescence material with porous structure and preparation method and application thereof
  • Rare-earth-doped Li4ZrF8 nano-luminescence material with porous structure and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Preparation of Li 4 ZrF 8 :20%Yb / 2%Er nano-luminescent material

[0049] Weigh 0.084g of lithium hydroxide, 624μL of zirconium acetate, 0.0035g of erbium acetate and 0.0423g of ytterbium acetate into a 100mL three-neck flask at room temperature, add 12mL of oleic acid and 16mL of octadecene, and stir to mix evenly. Under the protection of nitrogen flow, the above mixture was heated to 150°C and kept at this temperature for 60 minutes to completely dissolve the zirconium acetate and rare earth acetate to obtain a transparent and clear solution. After cooling to room temperature, 10 ml of methanol solution in which 0.1112 g of ammonium fluoride was dissolved was added dropwise, stirred and allowed to react at room temperature for 30 minutes. Then the mixed solution was heated to 50° C. and kept for 30 minutes to remove methanol in the reaction system. After the methanol was removed, the reaction system was heated to 280°C under the protection of nitrogen flow, kept at ...

Embodiment 2

[0055] Preparation of Li 4 ZrF 8 :20%Yb / 2%Tm nano-luminescent material

[0056] Weigh 0.084g of lithium hydroxide, 624μL of zirconium acetate, 0.0036g of thulium acetate and 0.0423g of ytterbium acetate into a 100mL three-neck flask at room temperature, add 12mL of oleic acid and 16mL of octadecene, and stir to mix evenly. Under the protection of nitrogen flow, the above mixture was heated to 150°C and kept at this temperature for 60 minutes to completely dissolve the zirconium acetate and rare earth acetate to obtain a transparent and clear solution. After cooling to room temperature, 10 mL of methanol solution in which 0.1112 g of ammonium fluoride was dissolved was added dropwise, stirred and allowed to react at room temperature for 30 minutes. Then the mixed solution was heated to 50° C. and kept for 30 minutes to remove methanol in the reaction system. After the methanol was removed, the reaction system was heated to 280°C under the protection of nitrogen flow, kept at...

Embodiment 3

[0059] Preparation of Li 4 ZrF 8 :20%Yb / 2%Ho nano-luminescent material

[0060] Weigh 0.084g of lithium hydroxide, 624μL of zirconium acetate, 0.0034g of holmium acetate and 0.0423g of ytterbium acetate into a 100mL three-necked flask at room temperature, add 12mL of oleic acid and 16mL of octadecene, and stir to mix evenly. Under the protection of nitrogen flow, the above mixture was heated to 150°C and kept at this temperature for 60 minutes to completely dissolve the zirconium acetate and rare earth acetate to obtain a transparent and clear solution. After cooling to room temperature, 10 ml of methanol solution in which 0.1112 g of ammonium fluoride was dissolved was added dropwise, stirred and allowed to react at room temperature for 30 minutes. Then the mixed solution was heated to 50° C. and kept for 30 minutes to remove methanol in the reaction system. After the methanol was removed, the reaction system was heated to 280°C under the protection of nitrogen flow, kept ...

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Abstract

The invention discloses a rare-earth-doped Li4ZrF8 nano-luminescence material with a porous structure and a preparation method and application thereof. The rare-earth-doped Li4ZrF8 nano-luminescence material is an orthorhombic-phase Li4ZrF8 nano-material with the grain size of 50-120 nanometers, and is a porous material with the specific surface area of 100-500 m<2> / g and the aperture of 5-20 nm. The preparation method is characterized in that zirconium acetate serves as metal salt of Zr, a high-temperature co-precipitation method is utilized to synthesize the rare-earth-doped Li4ZrF8 nano-luminescence material, and the prepared rare-earth-doped Li4ZrF8 nano-luminescence material is easy-to-control in synthesis condition, good in repeatability, and excellent in dispersity and homogeneity; and the rare-earth-doped Li4ZrF8 nano-luminescence material has favorable luminescence property, can serve as a host material with ideal up-conversion and down-conversion luminescence and has a huge development potential in the field of luminescent imaging, drug delivery, biological application and the like.

Description

technical field [0001] The invention belongs to the technical field of nano-luminescent materials, and in particular relates to a rare-earth-doped lithium zirconium fluoride nano-luminescent material with a porous structure and a preparation method and application thereof. Background technique [0002] Due to the advantages of rare earth-doped nanoluminescent materials with weak background interference, long fluorescence lifetime, low excitation energy and deep tissue penetration, they have shown broad application prospects in lighting display, drug delivery, biomedical imaging, biomarkers and other fields. It has received extensive attention and research at home and abroad. The host material in the rare earth-doped nano-luminescent material is an important component that affects its luminescent performance. Compared with other host materials, fluoride has stable physical and chemical properties and lower phonon energy, and is a good luminescent host material. At present, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/67
CPCC09K11/7733C09K11/7773
Inventor 付虎辉李国炜刘永升洪茂椿
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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