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
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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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