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

A method for preparing cadmium tungstate nanowires by microwave method

A technology of cadmium tungstate and nanowires, which is applied in the field of preparation of cadmium tungstate nanowires, can solve the problem of the reduction of luminous performance and damage resistance of cadmium tungstate nanowires, the small aspect ratio of cadmium tungstate nanowires, and the inability to reach User requirements and other issues, to achieve the effect of easy industrial production, low cost, and environmentally friendly industrial production

Inactive Publication Date: 2016-06-01
LUOYANG INST OF SCI & TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the existing preparation method of cadmium tungstate nanowires is to use a hydrothermal method, by adding organic surfactants, to make cadmium tungstate crystals grow in orientation, so as to obtain cadmium tungstate nanowires. However, this method is not only complicated in process, but also The use of a large amount of organic surfactants will cause a lot of pollution to the environment, and the aspect ratio of the obtained cadmium tungstate nanowires is also small, which will reduce the luminescence performance and damage resistance of the cadmium tungstate nanowires, thereby achieving Less than the user's requirements

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 method for preparing cadmium tungstate nanowires by microwave method
  • A method for preparing cadmium tungstate nanowires by microwave method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Step 1 Make sodium tungstate into a solution and adjust the WO in the solution 4 2- The ion concentration is 0.05mol / L;

[0023] Step 2 makes cadmium chloride into a solution, and adjusts the Cd in the solution 2+ The ion concentration is 0.05mol / L;

[0024] Step 3 mixes the sodium tungstate aqueous solution prepared in step 1 with the cadmium chloride aqueous solution prepared in step 2, wherein the molar ratio of sodium tungstate and cadmium chloride is 1:1, and after stirring the obtained solution for 10 minutes, carry out suction filtration;

[0025] Step 4: Place the precipitate obtained in Step 3 in a corundum crucible, then place the corundum crucible in a container filled with carbon powder, make the carbon powder surround the corundum crucible, cover the lid, and move the container into a microwave oven;

[0026] Step 5. The power of the microwave oven is 160W, and react for 90 minutes under the action of microwave;

[0027] Step 6 After the reaction is co...

Embodiment 2

[0030] Step 1 Make sodium tungstate into a solution and adjust the WO in the solution 4 2- The ion concentration is 1.2mol / L;

[0031] Step 2 makes cadmium chloride into a solution, and adjusts the Cd in the solution 2+ The ion concentration is 1.2mol / L;

[0032] Step 3 mixes the sodium tungstate aqueous solution prepared in step 1 with the cadmium chloride aqueous solution prepared in step 2, wherein the molar ratio of sodium tungstate and cadmium chloride is 1:1, and after stirring the obtained solution for 20 minutes, carry out suction filtration;

[0033] Step 4: Place the precipitate obtained in Step 3 in a corundum crucible, then place the corundum crucible in a container filled with carbon powder, make the carbon powder surround the corundum crucible, cover the lid, and move the container into a microwave oven;

[0034] Step 5. The power of the microwave oven is 500W, and react for 50 minutes under the action of microwave;

[0035] Step 6 After the reaction is comp...

Embodiment 3

[0037] Step 1 Make sodium tungstate into a solution and adjust the WO in the solution 4 2- The ion concentration is 2mol / L;

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
diameteraaaaaaaaaa
aspect ratioaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method of preparing a cadmium tungstate nanowire by a microwave method. The method comprises the following steps: respectively preparing sodium tungstate and cadmium chloride into liquor, and carrying out suction filtration after stirring; and enabling precipitates to react under action of microwaves to obtain the cadmium tungstate nanowire. The cadmium tungstate nanowire obtained by the method disclosed by the invention has the advantages of being greater in nanocrystal slenderness ratio, high in purity, excellent in luminescence property, and simple in process, quick and efficient, low in cost, environment-friendly, easy for industrialization, and the like.

Description

technical field [0001] The invention relates to a method for preparing cadmium tungstate nanowires, in particular to a method for preparing cadmium tungstate nanowires by a microwave method. Background technique [0002] Cadmium tungstate (CdWO 4 ) nanocrystal has a scheelite structure, has a large absorption coefficient for x-rays, a short radiation length, and strong damage resistance. It is a very important scintillator material, which can emit light blue to yellow spectra under the action of ultraviolet light, so It plays an important role in optoelectronic materials such as fluorescence and laser, and has been widely used in light-emitting diodes and large-screen displays. It has a broad application space in sensor-sensitive components, color rendering materials, and color-changing materials. [0003] At present, the existing preparation method of cadmium tungstate nanowires is to use a hydrothermal method, by adding organic surfactants, to make cadmium tungstate cryst...

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): C30B29/32C30B29/60C30B7/14
Inventor 王永刚杨琳琳王晓峰王玉江徐国辉林海燕罗伟
Owner LUOYANG INST 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