Cr<3+>-doped zinc gallate near-infrared long-afterglow luminescent nanoparticles and preparation method

A nanoparticle, zinc gallate technology, applied in luminescent materials, luminescent coatings, chemical instruments and methods, etc., can solve the problems affecting the application of near-infrared long afterglow luminescent nanomaterials, serious agglomeration of long afterglow nanoparticles, and complicated preparation steps. , to achieve the effect of easy large-scale promotion and use, low cost of raw materials, and low reaction temperature

Inactive Publication Date: 2017-02-22
SHANDONG UNIV
View PDF6 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The currently reported near-infrared long-lasting luminescent nanomaterials are generally prepared by high-temperature solid-phase method and sol-gel method. These methods have the disadvantages of cumbersome preparation steps, long time requ

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
  • Cr&lt;3+&gt;-doped zinc gallate near-infrared long-afterglow luminescent nanoparticles and preparation method
  • Cr&lt;3+&gt;-doped zinc gallate near-infrared long-afterglow luminescent nanoparticles and preparation method
  • Cr&lt;3+&gt;-doped zinc gallate near-infrared long-afterglow luminescent nanoparticles and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0039] Example 1

[0040] Add 10ml 0.1mol / L Zn(NO 3 ) 2 Solution, 19.95ml 0.1mol / L Ga(NO 3 ) 3 Solution, 0.1ml 0.05mol / L Cr(NO 3 ) 3 After stirring the solution, the reactant nitrate mixture is obtained. Then, 0.2459 g of glycine and 0.1180 g of carbohydrazide were added to the above mixed solution as organic fuel. Slowly evaporate in a water bath at 80°C until the mixed solution becomes a uniform and transparent sol. The above-mentioned sol is put into a muffle furnace with a furnace temperature of 600° C. and ignited. The combustion reaction is completed rapidly within several tens of seconds, and a white fluffy product is obtained. The above white product was transferred into an agate mortar, and 5 mmol / L sodium hydroxide solution was added to fully grind for 1 hour. After grinding the mixed slurry into distilled water and ultrasonic treatment for 1h, the mass ratio of distilled water to white product is 1000:1. After standing for 72h, take the supernatant and centrifuge at ...

Example Embodiment

[0045] Example 2

[0046] Add 10ml Zn(NO 3 ) 2 Solution, 19.98ml Ga(NO 3 ) 3 Solution, 0.04ml Cr(NO 3 ) 3 The solution is stirred to obtain the reactant nitrate mixture. Then, 0.2459 g of glycine and 0.1180 g of carbohydrazide were added to the above mixed solution as organic fuel. Slowly evaporate in a water bath at 80°C until the mixed solution becomes a uniform and transparent sol. The above sol is put into a muffle furnace with a furnace temperature of 500° C. and ignited, and the combustion reaction is completed quickly within several tens of seconds to obtain a white fluffy product. Transfer the white product to an agate mortar, add 5mmol / L sodium hydroxide solution and grind thoroughly for 1h. After grinding the mixed slurry into distilled water and ultrasonic treatment for 1h, the mass ratio of distilled water to white product is 1000:1. After standing for 72h, take the supernatant and centrifuge at 10000rpm for 10min to obtain near infrared with average particle size l...

Example Embodiment

[0047] Example 3

[0048] Add 10ml Zn(NO 3 ) 2 Solution, 19.9ml Ga(NO 3 ) 3 Solution, 0.2ml Cr(NO 3 ) 3 The solution is stirred to obtain the reactant nitrate mixture. Then, 0.2459 g of glycine and 0.1180 g of carbohydrazide were added to the above mixed solution as organic fuel. Slowly evaporate in a water bath at 80°C until the mixed solution becomes a uniform and transparent sol. The above-mentioned sol is put into a muffle furnace with a furnace temperature of 700° C. and ignited, and the combustion reaction is completed rapidly within tens of seconds, and a white fluffy product is obtained. Transfer the white product to an agate mortar, add 5mmol / L sodium hydroxide solution and grind thoroughly for 1h. After grinding the mixed slurry into distilled water and ultrasonic treatment for 1h, the mass ratio of distilled water to white product is 1000:1. After standing for 72h, take the supernatant and centrifuge at 10000rpm for 10min to obtain near infrared with average particle...

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 Cr<3+>-doped zinc gallate near-infrared long-afterglow luminescent nanoparticles and a preparation method. The nanoparticles have the atom composition of ZnGaxCryO4, wherein x is in a range of 1.98-2.00, and y is in a range of 0.001-0.02; the particle size is 50-100 nm, 2E-to-4A2 broadband transmission of Cr<3+> is generated, the broadband transmission peak ranges from 600 nm to 850 nm, and the peak value is located at 690-715 nm. The prepared long-afterglow luminescent material has the good properties that the particle size is small, the transmission range is located in a near-infrared light zone, and the afterglow time is long. In the preparation method, the cost of raw materials is low, the method is simple and easy to implement, the reaction temperature is low, requirements for equipment are low, no byproducts are produced and large-scale popularization and utilization are facilitated.

Description

technical field [0001] The invention belongs to the field of preparation of long afterglow luminescent materials, in particular to a Cr 3+ Doped zinc gallate near-infrared long-lasting luminescent nanoparticles and a preparation method thereof. Background technique [0002] Long afterglow luminescence refers to the phenomenon that the material can continue to emit light after the excitation of the external excitation source (such as: ultraviolet rays, X-rays, γ-rays, visible natural light, etc.) stops. The duration of the luminescence varies from a few seconds to several weeks. Wait. Materials with such luminescent properties are usually called long-lasting luminescent materials. So far, long afterglow luminescent materials have been widely used in many fields such as safety display, road indication, instrument display, appearance decoration, and night indication. Every potential application of a long-lasting luminescent material requires a specific emission wavelength. ...

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
IPC IPC(8): C09K11/62G01N33/58C09D5/22C09D7/12A61K49/00
CPCA61K49/0013A61K49/0093C09D5/22C09K11/682C09D7/61C09D7/67G01N33/582
Inventor 梁延杰孙康宁
Owner SHANDONG UNIV
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