Magnetism-fluorescence multifunctional nanometer material and preparation method thereof

A nano-material and multi-functional technology, applied in the field of fluorescent materials, achieves the effects of good paramagnetism, simple preparation process, and simple material structure

Active Publication Date: 2018-04-06
HENAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no small size cubic NaEr

Method used

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  • Magnetism-fluorescence multifunctional nanometer material and preparation method thereof
  • Magnetism-fluorescence multifunctional nanometer material and preparation method thereof
  • Magnetism-fluorescence multifunctional nanometer material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for preparing a magnetic-fluorescence multifunctional nanomaterial, the specific steps are as follows:

[0032] a. Dissolve 0.5g NaOH in 5mL deionized water, stir evenly (stirring time is about 5min), add 10mL ethanol, 15mL oleic acid, and stir for 10 minutes to fully mix to obtain solution A;

[0033] b. Prepare ErCl with a total concentration of 1mmol / mL 3 and MnCl 2 The mixed aqueous solution B; ErCl in the mixed aqueous solution 3 0.6mmol / mL, MnCl 2 0.4 mmol / mL;

[0034] c. Take 0.75 mL of the mixed aqueous solution B and add it to the solution A and stir evenly to obtain the mixed solution C;

[0035] d. Add NaF 1mmol in solution C, stir vigorously for 100 minutes to obtain the initial product;

[0036] e. Steps a-d need to be carried out at 40°C;

[0037] f. Transfer the initial product in d to an autoclave, react at 150°C for 200 minutes, and centrifuge to obtain a solid product;

[0038] g. After the product in f is lowered to room temperature, ...

Embodiment 2

[0044] A method for preparing a magnetic-fluorescence multifunctional nanomaterial, the specific steps are as follows:

[0045] a. Dissolve 0.5g NaOH in 2mL deionized water, stir evenly (stirring time is about 5min), add 5mL ethanol, 8mL oleic acid, and stir for 10 minutes to fully mix to obtain solution A;

[0046] b. Prepare ErCl with a total concentration of 1mmol / mL 3 and MnCl 2 The mixed aqueous solution B; ErCl in the mixed aqueous solution 3 0.6mmol / mL, MnCl 2 0.4 mmol / mL;

[0047] c. Take 0.75mL of mixed aqueous solution B and add it into solution A and stir evenly to obtain mixed solution C;

[0048] d. Add 2 mmol of NaF to solution C, and stir vigorously for 60 minutes to obtain the initial product;

[0049] e. Steps a-d need to be carried out at 40°C;

[0050] f. Transfer the initial product in d to an autoclave, and react at 140°C for 300 minutes to obtain the product;

[0051] g. After the product in f has dropped to room temperature, wash with cyclohexane...

Embodiment 3

[0053] A method for preparing a magnetic-fluorescence multifunctional nanomaterial, the specific steps are as follows:

[0054] a. Dissolve 0.5g NaOH in 6mL deionized water, stir evenly (stirring time is about 5min), add 10mL ethanol, 15mL oleic acid, and stir for 10 minutes to fully mix to obtain solution A;

[0055] b. Prepare ErCl with a total concentration of 1mmol / mL 3 and MnCl 2 The mixed aqueous solution B; ErCl in the mixed aqueous solution 3 0.6mmol / mL, MnCl 2 0.4 mmol / mL;

[0056] c. Take 0.75mL of mixed aqueous solution B and add it into solution A and stir evenly to obtain mixed solution C;

[0057] d. Add NaF 3mmol in solution C, and stir vigorously for 80 minutes to obtain the initial product;

[0058] e. Steps a-d need to be carried out at 40°C;

[0059] f. Transfer the initial product in d to an autoclave, and react at 240°C for 100 minutes to obtain the product;

[0060] g. After the product in f has dropped to room temperature, wash with cyclohexane a...

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Abstract

The invention provides a magnetism-fluorescence multifunctional nanometer material and a preparation method thereof, and belongs to the technical field of fluorescent materials. The preparation methodcomprises the following steps that firstly, every 0.5 g of NaOH is dissolved in 2-6 mL of deionized water, after uniform mixing, 5-10 mL of ethyl alcohol and 8-15 mL of oleic acid are added, and a solution A is obtained after uniform mixing; secondly, a ErCl3 and MnCl2 mixed water solution B with the total concentration of 1 mmol/mL is prepared; thirdly, the mixed water solution B is added into the solution A for uniform mixing, and then a mixed solution C is obtained; fourthly, 1-3 mmol of NaF is added into the mixed solution C, stirring is conducted for 60-100 minutes, and then an initial product is obtained; fifthly, the initial product obtained in the fourth step is transferred into a high-pressure autoclave and reacts for 100-300 minutes at the temperature of 140-240 DEG C, and thena product is obtained; sixthly, the product obtained in the fifth step is cooled to the room temperature and washed, the precipitate obtained after washing is dried, and then the magnetism-fluorescence multifunctional nanometer material is obtained.

Description

technical field [0001] The invention belongs to the field of fluorescent materials, and in particular relates to a magnetic-fluorescent multifunctional nanometer material and a preparation method thereof. Background technique [0002] In recent decades, upconversion fluorescent nanomaterials doped with lanthanide rare earth ions have shown unique functions in many fields such as solar cells, three-dimensional imaging, living lighting, fluorescent anti-counterfeiting, biological imaging, and biophotodynamic therapy. Compared with other similar solid luminescent materials: semiconductor nano-fluorescent materials, quantum dot fluorescent nano-materials, and organic dye fluorescent materials, up-conversion nano-luminescent materials show higher chemical stability, low cytotoxicity, narrower emission bands, Higher fluorescence efficiency and larger anti-Stokes spectral modulation range. [0003] There is an "optical window" in living biological cells, and biological cells have ...

Claims

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Application Information

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IPC IPC(8): C09K11/85B82Y40/00H01F1/00H01F41/00
CPCB82Y40/00C09K11/7705H01F1/0018H01F41/00
Inventor 刘越峰毛艳丽高惠平张振龙赵军张华芳
Owner HENAN UNIVERSITY
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