Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of water-soluble terbium-doped calcium fluoride nanoparticles, preparation method and application thereof

A technology of heterocalcium fluoride and nanoparticles, which is applied in the field of inorganic material preparation, can solve the problems of the contradiction between water solubility and luminescence intensity of terbium-doped nanoparticles, seldom prepare terbium-doped fluoride nanoparticles, etc. Solubility, reduced fluorescence intensity, good controllability

Inactive Publication Date: 2021-02-05
XIAN UNVERSITY OF ARTS & SCI
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a water-soluble terbium-doped calcium fluoride nanoparticle and a preparation method thereof, which solves the problem that terbium-doped fluoride nanoparticles that can be dissolved in water are rarely prepared in the prior art, and even if prepared , there is also a conflict between the water solubility and luminous intensity of terbium-doped nanoparticles

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 water-soluble terbium-doped calcium fluoride nanoparticles, preparation method and application thereof
  • A kind of water-soluble terbium-doped calcium fluoride nanoparticles, preparation method and application thereof
  • A kind of water-soluble terbium-doped calcium fluoride nanoparticles, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Add 0.9267mmol of 2,6-pyridinedicarboxylic acid (DPA) and 35mL of distilled water into a 50mL beaker, place the beaker in an ultrasonic cleaner (ultrasonic power 100W, ultrasonic frequency 40KHz) to fully dissolve DPA, after the dissolution is complete , add 0.9267mmol of NaOH to the beaker and ultrasonically dissolve it for 15min, then add 0.8803mmol of Ca(NO 3 ) 2 4H 2 O and 0.0463mmol of Tb(NO 3 ) 3 ·6H 2 O was added to the beaker, ultrasonically dissolved for 15 minutes, then 1.5311 mmol of NaF was added, ultrasonically dissolved for 15 minutes, and the reaction mixture was obtained after ultrasonic dissolution was completed;

[0033] Transfer the reaction mixture to the lining of a 50mL hydrothermal synthesis reactor and seal it, then react in a drying oven at 150°C for 16h, and cool to room temperature after the reaction to obtain a colloidal solution; put the colloidal solution in a 50mL beaker, Concentrate to 8mL in a drying oven at 120°C to precipitate nan...

Embodiment 2

[0035] The preparation method is the same as in Example 1, and the difference is that the La(NO 3 ) 3 ·6H 2 O and Tb(NO 3 ) 3 ·6H 2 O was replaced by LaCl, respectively 3 ·6H 2 O and TbCl 3 ·6H 2 O.

[0036] Embodiment 2 obtains Tb 3+ Terbium-doped CaF2 nanoparticles with a molar doping concentration of 5%.

Embodiment 3

[0038] The preparation method is the same as in Example 1, except that NaF in Example 1 is replaced by KF.

[0039] Embodiment 3 obtains Tb 3+ Terbium-doped CaF2 nanoparticles with a molar doping concentration of 5%.

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a water-soluble terbium-doped calcium fluoride nanoparticle and a preparation method thereof, which comprises the following steps: 2,6-pyridinedicarboxylic acid, NaOH, inorganic calcium salt, inorganic terbium salt, and alkali metal fluoride are mixed and prepared A reaction mixture; hydrothermal reaction of the reaction mixture to prepare a colloid solution; purification of the colloid solution to obtain water-soluble terbium-doped calcium fluoride nanoparticles. The present invention also provides an application of the water-soluble terbium-doped calcium fluoride nanoparticles prepared by the above method in the identification of transition metal ions. The nano-particles prepared by the invention have uniform size distribution, small particle size, and can emit strong Tb under the excitation of ultraviolet light. 3+ Characteristic fluorescence, and can recognize transition metal ions. In addition, the preparation method of the present invention is simple, easy to scale up, good controllability, and excellent product performance. It can not only identify metal ions, but also is expected to be used in analytical chemistry, biological, medical fluorescent probes, tracing, anti-counterfeiting and other fields.

Description

technical field [0001] The invention belongs to the technical field of preparation of inorganic materials, and in particular relates to a water-soluble terbium-doped calcium fluoride nanoparticle, a preparation method and an application thereof. Background technique [0002] Since the end of the last century, with the development of nano science and technology, nano luminescent materials have gradually aroused people's strong interest and attracted more and more people's attention. Rare earth elements have abundant electronic energy levels. Through proper doping of rare earth ions, rare earth luminescent materials with absorption and emission of various wavelengths from ultraviolet, visible to near-infrared regions can be obtained. Nano-sized rare earth luminescent materials can Making it produce more excellent performance on the basis of the original properties, which will help to discover new luminescent materials and develop new properties. At present, exploring new meth...

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): C09K11/61B82Y20/00B82Y30/00G01N21/64
CPCB82Y20/00B82Y30/00C09K11/7748G01N21/6428G01N2021/6432
Inventor 宋立美高建华
Owner XIAN UNVERSITY OF ARTS & SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com