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

Ultrasonic aging synthesis for manganese doped zinc sulphide nanocrystalline

A technology of manganese-doped zinc sulfide and nanocrystals, applied in chemical instruments and methods, single crystal growth, crystal growth, etc., can solve the problems of low doping efficiency, achieve high doping efficiency, narrow particle size distribution range, The effect of simple process equipment

Inactive Publication Date: 2009-07-08
SHAANXI UNIV OF SCI & TECH
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Korotchenkov.O.A. et al prepared manganese-doped zinc sulfide (ZnS:Mn) nanocrystals by sonochemical precipitation, but the doping efficiency of this method is low (Korotchenkov, O.A.; Cantarero, A.; Shpak, A.P., et al . Nanotechnology, 2005, 16: 2033-2038)

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] 1) First, add analytically pure anhydrous zinc chloride into distilled water to prepare Zn 2+ A transparent solution with a concentration of 0.2mol / L, the obtained solution is recorded as A; then distilled water and analytically pure dimethyl sulfoxide are mixed in a volume ratio of 4:1, and then analytically pure thioacetamide is added to distilled water and analytically pure prepared in a mixed solvent of dimethyl sulfoxide into S 2- A transparent solution with a concentration of 0.2mol / L, the resulting solution is denoted as B;

[0013] 2) Next, place the Erlenmeyer flask containing solution A in a KQ500TDB cleaning tank type ultrasonic generator with a natural frequency of 80kHz, and at the same time turn on the ultrasonic generator, slowly drop B solution equal to the volume of A solution into A solution; then seal the Erlenmeyer flask; adjust the pH value of the reaction solution with ammonia water every 20min to make it stable at 5.0, the temperature of the wate...

Embodiment 2

[0017] 1) First, add analytically pure anhydrous zinc chloride into distilled water to prepare Zn 2+ A transparent solution with a concentration of 0.2mol / L, the obtained solution is recorded as A; then distilled water and analytically pure dimethyl sulfoxide are mixed in a volume ratio of 1:1, and then analytically pure thioacetamide is added to distilled water and analytically pure prepared in a mixed solvent of dimethyl sulfoxide into S 2- A transparent solution with a concentration of 0.2mol / L, the resulting solution is denoted as B;

[0018] 2) Next, place the Erlenmeyer flask containing solution A in a KQ500TDB cleaning tank type ultrasonic generator with a natural frequency of 80kHz, and at the same time turn on the ultrasonic generator, slowly drop B solution equal to the volume of A solution into A solution; then seal the Erlenmeyer flask; adjust the pH value of the reaction solution with ammonia every 20min to make it stable at 6.0, the temperature of the water bath...

Embodiment 3

[0022] 1) First, add analytically pure anhydrous zinc chloride into distilled water to prepare Zn 2+ A transparent solution with a concentration of 0.2mol / L, the obtained solution is recorded as A; then distilled water and analytically pure dimethyl sulfoxide are mixed in a volume ratio of 2:1, and then analytically pure thioacetamide is added to distilled water and analytically pure prepared in a mixed solvent of dimethyl sulfoxide into S 2- A transparent solution with a concentration of 0.2mol / L, the resulting solution is denoted as B;

[0023] 2) Next, place the Erlenmeyer flask containing solution A in a KQ500TDB cleaning tank type ultrasonic generator with a natural frequency of 80kHz, and at the same time turn on the ultrasonic generator, slowly drop B solution equal to the volume of A solution into A solution; then seal the Erlenmeyer flask; adjust the pH value of the reaction solution with ammonia every 20min to make it stable at 7.0, the reaction system water bath te...

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 provides a method for ultrasonic aging synthesizing manganese doping zinc sulphide nano crystal which includes steps as follows: adding anhydrous zinc chloride into distilled water for obtaining solution A, adding thiacetamide into a mixed solvent of distilled water and dimethyl sulfoxide for obtaining solution B; placing a taper bottle containing solution A into a cleaning groove type supersonic generator, dropping solution B into solution A slowly; whole reacting is in supersonic lead; then centrifugalizing and drying the reacted product for obtaining ZnS nano crystal; distributing ZnS nano crystal into ethanol or isopropanol of analytically pure, and pouring MnCl2.4H2O solution to supersonic shock, then aging in a constant temperature chamber, finally centrifugalizing and electrical heating vacuum drying for obtaining ZnS:Mn nano crystal. The method uses supersonic aging two steps synthesizing for preparing ZnS:Mn nano crystal, the reaction is processed in solution phase and needs not post anneal treatment. The method has advantages of simple technique equipment, mild reaction condition, no pollution, obtained product with regular shape, narrow range particle size distribution, better distribution performance, high doping efficiency and 100% productivity.

Description

technical field [0001] The invention belongs to a preparation method of manganese-doped zinc sulfide nanocrystals (ZnS:Mn), in particular to an ultrasonic aging synthesis method of manganese-doped zinc sulfide nanocrystals. Background technique [0002] Zinc sulfide is one of the important materials for manufacturing optoelectronic devices. It has the characteristics of wide band gap and good conductivity, and can be used as a blue light emitting material (Kara N, Singh F, Mehta B R.J Appl Phys, 2004, 95 (2): 656- 660). Zinc sulfide doped with manganese ions is a kind of photoelectric material that emits orange light. It has a wide range of uses and can be used as a magnetic material and a luminescent material. For now, it is more used as a luminescent material. Due to the high luminous efficiency and strong chemical stability of ZnS:Mn, its nanoparticles can be applied in the field of display technology. For example: cathode ray, X-ray luminescence and luminescence sensor...

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 Applications(China)
IPC IPC(8): C30B29/48C30B7/14C30B30/06
Inventor 黄剑锋李吉蓉曹丽云殷立雄李佳胤郝品
Owner SHAANXI UNIV OF SCI & TECH
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