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

Series of elliptical metal sulfide grain, its production and use

A metal sulfide, ellipsoid technology, used in the preparation of sulfide/polysulfide, chemical instruments and methods, color-changing fluorescent materials, etc., can solve the problems of difficult to obtain uniform particles, difficult to control conditions, etc. Simple and easy, controllable size, high purity effect

Inactive Publication Date: 2007-11-21
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing methods usually use a two-step method: first prepare spherical particles, and then use viscoelastic deformation to stretch and deform the polymer balls into ellipsoidal particles (Yin, Y.; Xia, Y.Adv.Mater.2001 , 13:415) or use high-energy particle irradiation to transform inorganic spherical particles into ellipsoidal particles (Velikov, K.P., Moroz A., and Blaaderen A.V., Appl.Phys.Lett.2002, 81:838), these The preparation method is either extremely difficult to control the conditions, it is difficult to obtain uniform particles, or requires harsh conditions such as high-energy particle irradiation

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
  • Series of elliptical metal sulfide grain, its production and use
  • Series of elliptical metal sulfide grain, its production and use
  • Series of elliptical metal sulfide grain, its production and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Prepare zinc acetate aqueous solution, its molar concentration is 0.1mol / L; prepare sodium sulfide aqueous solution, its molar concentration is 0.2mol / L; prepare ammonia solution, its molar concentration is 10mol / L; prepare sodium hydroxide aqueous solution, its molar concentration 1.0mol / L. At 20°C, mix the configured zinc acetate aqueous solution, sodium sulfide aqueous solution, and ammonia aqueous solution in a molar ratio of 1:1:100, adjust the pH value of the reaction system to 13.5 with aqueous sodium hydroxide solution, stir, and age 4 hours; the sediment was washed, centrifuged, and dried to obtain ellipsoidal zinc sulfide particles with an average major axis size of 1.8 μm, an average minor axis size of 1.2 μm, and an average aspect ratio of 1.5. The ellipsoidal zinc sulfide particles can be used as fluorescent materials, electroluminescent materials, high-grade paints, laser materials, biological marker materials, photonic crystal assembly materials and the l...

Embodiment 2

[0036]Prepare an aqueous zinc sulfate solution with a molar concentration of 0.5mol / L; prepare an aqueous ammonia sulfide solution with a molar concentration of 0.6mol / L; prepare an aqueous ammonia solution with a molar concentration of 3mol / L; prepare an aqueous sodium hydroxide solution with a molar concentration of It is 3.0mol / L. At 40°C, mix the configured zinc sulfate aqueous solution, ammonia sulfide aqueous solution, and ammonia aqueous solution in a molar ratio of 1:0.5:20, adjust the pH value of the reaction system to 12.5 with aqueous sodium hydroxide solution, stir, and age 24 hours; the precipitate was washed, centrifuged, and dried. The average size of the long axis of the obtained product was 3.5 μm, the average size of the short axis was 1 μm, and the average aspect ratio was 3.5. The ellipsoidal zinc sulfide particles, see the electron microscope photo Figure 1, the X-ray diffraction pattern of the product is shown in Figure 2, and the ultraviolet absorption s...

Embodiment 3

[0038] Prepare cadmium nitrate aqueous solution, its molar concentration is 5mol / L; Prepare potassium sulfide aqueous solution, its molar concentration is 0.6mol / L; Prepare ethylenediamine aqueous solution, its molar concentration is 0.5mol / L; Prepare potassium hydroxide aqueous solution, its The molar concentration is 5.0mol / L. At 10°C, mix the configured cadmium nitrate aqueous solution, potassium sulfide aqueous solution, and ethylenediamine aqueous solution in a molar ratio of 1:5:10, adjust the pH value of the reaction system to 10 with potassium hydroxide aqueous solution, and stir. Aging for 8 days; the precipitate was washed, centrifuged, and dried to obtain ellipsoidal cadmium sulfide particles with an average major axis size of 1 μm, an average minor axis size of 0.4 μm, and an average aspect ratio of 2.5. The ellipsoidal zinc sulfide particles can be used as fluorescent materials, high-grade paints, laser materials, biomarker materials, electroluminescence materials...

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

A series of metal sulfide grain, its production and use are disclosed. The process is carried out by mixing soluble metal salt with soluble sulfide, adjusting reactive system acid-base content, adding into compound containing amino group as protective agent and preparing into homogeneous elliptical metal sulfide grains containing zinc sulfide, copper sulfide, cadmium sulfide, silver sulfide and platinum sulfide. The granular macro-axis range is between 0.2-10 mum, granular brachy-axis range is between 0.1-5 mum, and granular length diameter ratio is 1.0-10. It's simple and controllable, costs low and has excellent purity and dispersion. It can be used for high-platform products such as fluorescent materials, biological mark material, laser material, photo-crystal package material, electro-luminescent material and micro-nanometer devices.

Description

technical field [0001] The invention belongs to the field of preparation and application of inorganic compound semiconductor materials, and relates to a series of ellipsoidal metal sulfide particles and a preparation method and application thereof. Background technique [0002] For a long time, as an important class of compound semiconductors, metal sulfides, including zinc sulfide, cadmium sulfide, copper sulfide, silver sulfide, platinum sulfide, etc., have been traditional fluorescent materials. Metal sulfides have superior photoelectric properties, excellent thermal infrared transparency, fluorescence, phosphorescence and photocatalytic activity, and can be used in many fields such as photoluminescence, electroluminescence, phosphors, photocatalysis, dyes, etc., in new sensors, High-resolution displays and other electronic materials have broad market application prospects. Moreover, due to the high dielectric constant (for example, the dielectric constant of zinc sulfid...

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): C01B17/20C09K9/00C09K11/56
Inventor 唐芳琼邓正涛陈东任湘菱
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF 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