Bivalent nickel ion activated near-infrared long afterglow nano material and preparation method and application thereof

A technology of nano-materials and divalent nickel, which is applied in nano-technology, nano-optics, luminescent materials, etc., can solve the problems of fewer luminescent centers, larger particles of long-lasting materials, and fewer types, and achieve excellent uniformity and particle stability Good, good monodispersity effect

Active Publication Date: 2016-12-21
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But now there are still very few types of this near-infrared material, and there are very few luminescent centers.
The recently developed near-infrared long-lasting materials are also limited to high-temperature solid-state sintering, and high-temperature sintering will lead to the increase of long-lasting material particles. Therefore, in order to further promote the application of near-infrared long-lasting materials in biological imaging, it is very necessary to develop improved Preparation of nanometer near-infrared long afterglow materials by synthesis technology

Method used

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  • Bivalent nickel ion activated near-infrared long afterglow nano material and preparation method and application thereof
  • Bivalent nickel ion activated near-infrared long afterglow nano material and preparation method and application thereof
  • Bivalent nickel ion activated near-infrared long afterglow nano material and preparation method and application thereof

Examples

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Embodiment 1

[0032] Ni in this example 2+ Preparation method of ion-activated zinc gallate nanometer near-infrared long-lasting markers:

[0033] According to the following composition: the substrate is ZnGa 2 o 4 , Ni 2+ The doping amount is 0.1mol%;

[0034] (1) Using zinc acetate, gallium nitrate, and nickel nitrate as raw materials, weigh the raw materials and add them to a mixed solution of 20 g of water and alcohol, add acetylacetone after stirring at room temperature for 30 minutes, and stir at room temperature for 1 hour to obtain a mixed solution , wherein the pH value of the mixed solution is controlled at 2; wherein the mol ratio of acetylacetone and the total amount of metal ions in the mixed solution is 1:1; in the mixed solution of water and alcohol, the volume ratio of water and alcohol is = 1:1;

[0035] (2) Put the mixed solution obtained in step (1) into an oven at 80° C. for 24 hours to obtain a wet gel;

[0036] (3) Add 20g of the mixed solution of n-butanol and a...

Embodiment 2

[0041] Ni in this example 2+ Preparation method of ion-activated zinc gallate nanometer near-infrared long-lasting markers:

[0042] According to the following composition: the substrate is ZnGa 2 o 4 , Ni 2+ The doping amount is 5mol%;

[0043] (1) With zinc acetate, gallium nitrate, and nickel nitrate as raw materials, weigh the raw materials and add them to a mixed solution of 20 g of water and alcohol, add acetylacetone after stirring at room temperature for 30 minutes, and stir at room temperature for 1 hour to obtain a mixed solution , wherein the pH value of the mixed solution is controlled at 4; wherein, the mol ratio of acetylacetone and the total amount of metal ions in the mixed solution is 1:1; in the mixed solution of water and alcohol, the volume ratio of water and alcohol is = 1:1;

[0044](2) Put the mixed solution obtained in step (1) into an oven at 80° C. for 24 hours to obtain a wet gel;

[0045] (3) Add 20g of the mixed solution of n-butanol and alco...

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Abstract

The invention discloses a bivalent nickel ion activated near-infrared long afterglow nano material which takes ZnGa2O4 as a base material and is doped with 0.1 mol%-5 mol% of Ni. The invention further discloses a preparation method of the near-infrared long afterglow nano material. The method comprises the steps that 1, zinc acetate, gallium nitrate and nickel nitrate serve as the raw materials, the raw materials are added into a mixed solution of water and ethyl alcohol and stirred at room temperature, acetylacetone is added, the mixture is stirred at room temperature, and a mixed solution is obtained; 2, the mixed solution is dried, and wet gel is obtained; 3, a mixed solution of n-butyl alcohol and ethyl alcohol is added into the wet gel, reacting and drying are conducted in sequence, and dried gel is obtained; 4, the dried gel is ground and then transferred into a crucible, burning is conducted in a smelting furnace at 900 DEG C to 1,200 DEG C for 2 h, and a power material is obtained. The afterglow bandwidth of the near-infrared long afterglow nano material ranges from 1,050 nanometers to 1,600 nanometers, the afterglow peak is located at 1,250 nanometers to 1,350 nanometers, and the bivalent nickel ion activated near-infrared long afterglow nano material can be well applied to the field of bioimaging.

Description

technical field [0001] The invention relates to a near-infrared long afterglow material, in particular to a near-infrared long afterglow nano material activated by divalent nickel ions and a preparation method and application thereof. Background technique [0002] Optical imaging, using photons as an information source, represents a rapidly expanding field with direct applications in pharmacology, molecular cell biology, and diagnostics. However, this technique still has many limitations, especially the tissue autofluorescence produced by in vivo illumination and the weak tissue permeability under short-wave excitation light irradiation. In order to overcome these difficulties, scientists have studied a series of inorganic light-emitting materials, which emit light in the near-infrared region (NIR). Molecules emit near-infrared light (650-1350nm), which can be used for the detection of living molecular targets, because biological blood and Tissue is relatively transparent i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/62B82Y20/00
CPCC09K11/605B82Y20/00
Inventor 邱建荣李杨聂健敏
Owner SOUTH CHINA UNIV OF TECH
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