A kind of multi-mode excited single red light nano fluorescent material and preparation method thereof

A nano-fluorescence and red light technology, applied in the field of nano-fluorescent materials, can solve the problems of single detection light source, cumbersome preparation steps, simple fluorescence anti-counterfeiting mode, etc., and achieve the effect of wide application prospects, simple preparation method and stable sample performance

Active Publication Date: 2021-02-02
HENAN UNIVERSITY
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of single detection light source, cumbersome preparation steps and simple fluorescent anti-counterfeiting mode in current fluorescent anti-counterfeiting materials, the present invention provides a multi-mode excitation single red light nano-fluorescent material and a preparation method thereof, realizing the multi-mode excitation mode of the material , the preparation process is simple, the repeatability is good, the cost is low, and it has a wide application prospect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of multi-mode excited single red light nano fluorescent material and preparation method thereof
  • A kind of multi-mode excited single red light nano fluorescent material and preparation method thereof
  • A kind of multi-mode excited single red light nano fluorescent material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A method for preparing a heavily doped multimode excited single red light nano-fluorescent material with a core-shell structure, the steps are as follows:

[0040] (1) Prepare YbCl with a concentration of 1mmol / ml 3 , ErCl 3 , MnCl 2 and NaF aqueous solution;

[0041] (2) Dissolve 0.3g NaOH in 5ml deionized water, add 10ml ethanol, 10ml oleic acid, and stir for 10 minutes;

[0042](3) Separately add 0.2ml YbCl 3 , 0.1ml ErCl 3 and 0.2ml MnCl 2 Add the solution to step (2), and continue to stir for 10 minutes;

[0043] (4) Add 3mL NaF solution to the solution in step (3), and stir for 30 minutes;

[0044] (5) Transfer the solution in step (4) to an autoclave and react at 190°C for 160 minutes to obtain fluorescent products that can be excited by wavelengths of 379nm, 486nm, 522nm, 808nm and 980nm. The specific results are as follows Figure 4 shown;

[0045] (6) After the product in step (5) is cooled to room temperature, after repeated centrifugal washing with ...

Embodiment 2

[0056] A method for preparing a heavily doped multimode excitation single red light nano-fluorescent material with a core-shell structure, the steps are as follows:

[0057] (1) Prepare YbCl with a concentration of 1mmol / ml 3 , ErCl 3 , MnCl 2 and NaF aqueous solution;

[0058] (2) Dissolve 0.3g NaOH in 3ml deionized water, add 15ml ethanol, 10ml oleic acid, and stir for 10 minutes;

[0059] (3) Separately add 0.1ml YbCl 3 , 0.2ml ErCl 3 and 0.2ml MnCl 2 Add the solution to step (2), and continue to stir for 10 minutes;

[0060] (4) Add 3 mL of NaF solution to the solution in step (3), and stir for 30 minutes;

[0061] (5) Transfer the solution in step (4) to an autoclave, and react at 200°C for 100 minutes to obtain fluorescent products that can be excited by wavelengths of 379nm, 486nm, 522nm, 808nm and 980nm;

[0062] (6) After the product in step (5) has cooled down to room temperature, it is repeatedly centrifuged and washed with cyclohexane and absolute ethanol f...

Embodiment 3

[0070] A method for preparing a heavily doped multimode excitation single red light nano-fluorescent material with a core-shell structure, the steps are as follows:

[0071] (1) Prepare YbCl with a concentration of 1mmol / ml 3 , ErCl 3 , MnCl 2 and NaF aqueous solution;

[0072] (2) Dissolve 0.3g NaOH in 4ml deionized water, add 12ml ethanol, 12ml oleic acid, and stir for 10 minutes;

[0073] (3) Add 0.1ml YbCl 3 , 0.2ml ErCl 3 and 0.2ml MnCl 2 Add the solution to step (2), and continue to stir for 10 minutes;

[0074] (4) Add 2mL of NaF solution to the solution in step (3), and stir for 30 minutes;

[0075] (5) Transfer the solution in step (4) to an autoclave, and react at 220°C for 100 minutes to obtain fluorescent products that can be excited by wavelengths of 379nm, 486nm, 522nm, 808nm and 980nm;

[0076] (6) After the product in step (5) is cooled to room temperature, after repeated centrifugal washing with cyclohexane and absolute ethanol for 3-6 times, disperse ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a multi-mode excited single red light nano fluorescent material and a preparation method thereof. The steps are as follows: (1) YbCl with a concentration of 0.5-2.5mmol / ml is respectively prepared 3 , ErCl 3 , MnCl 2 and NaF aqueous solution; (2) Dissolve 0.3g NaOH in 2-6ml deionized water, add 5-15ml ethanol, 5-15ml oleic acid, and stir; (3) Separately mix YbCl 3 , ErCl 3 and MnCl 2 Add the solution to step (2) and stir; (4) Add 1‑3mmol NaF to the solution in step (3) and stir; (5) Transfer the solution in step (4) to an autoclave, After reacting at ℃ for 100-400 minutes, the fluorescent product is obtained; (6) After the fluorescent product in step (5) cools down to room temperature, centrifuge and wash to obtain the product.

Description

technical field [0001] The invention belongs to the field of nano fluorescent materials, and in particular relates to a multi-mode excited single red light nano fluorescent material and a preparation method thereof. Background technique [0002] Rare earth-doped fluorescent nanomaterials have the advantages of narrow emission spectrum, high color purity, bright colors, stable physical and chemical properties, high temperature resistance, and radiation resistance, so they have been widely used. Increasing the concentration of dopants in fluorescent nanomaterials is an effective way to increase their luminous intensity. The construction of ingenious nanomaterial microstructures and suitable dopant pair ions can greatly reduce concentration quenching and achieve heavy doping of sensitizers and activators. At the same time, because the energy levels of rare earth ions are very rich, the high doping concentration increases the absorption of excitation light energy, so the down-c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/61B82Y20/00B82Y40/00
CPCB82Y20/00B82Y40/00C09K11/7773
Inventor 毛艳丽刘越峰潘根才张华芳高惠平
Owner HENAN UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap