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Method for preparing bowknot-shaped terbium-mixed Teflon gadolinium sodium green luminous nanometer materials

A technology of sodium terbium tetrafluorogadolinium and nanomaterials, which is applied in the field of preparing bowtie-shaped green luminescent nanomaterials doped with sodium terbium tetrafluorogadolinium

Inactive Publication Date: 2014-07-09
CHANGCHUN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, no bowtie-shaped NaGdF has been prepared using DNA as a template 4 :Tb 3+ report on nanomaterials

Method used

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  • Method for preparing bowknot-shaped terbium-mixed Teflon gadolinium sodium green luminous nanometer materials
  • Method for preparing bowknot-shaped terbium-mixed Teflon gadolinium sodium green luminous nanometer materials
  • Method for preparing bowknot-shaped terbium-mixed Teflon gadolinium sodium green luminous nanometer materials

Examples

Experimental program
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Effect test

Embodiment

[0023]Embodiment: Weigh 0.06g herring essence DNA and dissolve in 25ml deionized water to obtain a DNA aqueous solution with a concentration of 3mg / ml; weigh 0.0374g terbium oxide Tb 4 o 7 , with HNO 3 Dissolved and evaporated to obtain Tb(NO 3 ) 3 Crystal, add 40ml deionized water, then add 1.7152g Gd(NO 3 ) 3 ·6H 2 O, after complete dissolution, [Gd(NO 3 ) 3 +Tb(NO 3 ) 3 ] mixed clear aqueous solution, where Gd 3+ with Tb 3+ The molar ratio is 95:5; the herring sperm DNA solution is added to [Gd(NO 3 ) 3 +Tb(NO 3 ) 3 ] in the mixed solution, forming [Gd(NO 3 ) 3 +Tb(NO 3 ) 3 + herring sperm DNA] mixed solution; to the [Gd(NO 3 ) 3 +Tb(NO 3 ) 3 + herring essence DNA] dropwise add 20ml aqueous solution containing 2.016g NaF to the mixed solution to get NaGdF 4 :5%Tb 3+ precipitation; the NaGdF 4 :5%Tb 3+ The precipitate was transferred to two 50ml hydrothermal reaction kettles, and the hydrothermal reaction kettles were placed in a drying oven, and re...

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Abstract

The invention relates to a method for preparing bowknot-shaped terbium-mixed Teflon gadolinium sodium green luminous nanometer materials, which belongs to the technical field of nanometer material preparation and comprises three steps of (1) preparing mixed solution, using nitric acid to dissolve Tb4O7, evaporating to obtain Tb(NO3)3, adding deionized water, then adding Gd(NO3)3-6H2O, achieving mixed solution of [Gd(NO3)3+Tb(NO3)3], forming mixed solution of [Gd(NO3)3+Tb(NO3)3 + herring sperm deoxyribonucleic acid (DNA)]; (2) preparing NaGdF4: 5%Tb3 + sediment, and dropwise adding NaF water solution into the mixed solution to obtain the NaGdF4: 5%Tb3 + sediment; (3) preparing a bowknot-shaped NaGdF4: 5%Tb3 + green luminous nanometer material, transferring the NaGdF4: 5%Tb3 + sediment into a hydrothermal reaction kettle to react for 16 hours at the temperature of 160 DEG C, taking out the reaction kettle to be cooled to the room temperature, and continuing to age for 12 hours to obtain the bowknot-shaped NaGdF4: 5%Tb3 + green luminous nanometer material with good crystallinity. The length of the bowknot-shaped NaGdF4: 5%Tb3 + green luminous nanometer material is 831+ / -72nm, the diameter of the bowknot position of the bowknot-shaped NaGdF4: 5%Tb3 + green luminous nanometer material is 166+ / -14nm, and the diameter of each nanometer bar in the bowknot-shaped nanometer material is 110+ / -9nm. The method is simple and practicable, economic and environmental0friendly, and wide in application prospect.

Description

technical field [0001] The invention relates to the field of preparation and research of nanometer materials, in particular to a method for preparing bowtie-shaped green luminescent nanomaterials doped with sodium terbium tetrafluorogadolinium. Background technique [0002] Rare earth tetrafluoride is one of the current efficient rare earth ion-doped luminescent hosts due to its abundant 4f energy level and low phonon energy. Terbium Tetrafluorogadolinium Sodium NaGdF 4 :Tb 3+ It is an important green luminescent material with important applications. NaGdF has been prepared by precipitation method, sol-gel method, microemulsion method, precursor pyrolysis method, hydrothermal and solvothermal method, polyol method, high boiling point coordination solvent method, electrospinning method, etc. 4 :Tb 3+ Nanocrystals, nanorods, flakes, hollow tubular structures, nanowires, spindles and other nanomaterials. Bow-tie doped terbium tetrafluorogadolinium sodium NaGdF 4 :Tb 3+ N...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/85
Inventor 董相廷王姝于文生王进贤于源华刘桂霞
Owner CHANGCHUN UNIV OF SCI & TECH
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