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

Preparation method of cadmium molybdate octahedron with controllable grain size

A cadmium molybdate and octahedral technology is applied in the field of preparation of inorganic functional materials to achieve the effects of low cost, mild conditions, easy control, and no energy consumption

Inactive Publication Date: 2010-03-10
GUANGXI UNIV FOR NATITIES
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the uniform octahedral structure of cadmium molybdate at the nanoscale has not been reported

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
  • Preparation method of cadmium molybdate octahedron with controllable grain size
  • Preparation method of cadmium molybdate octahedron with controllable grain size
  • Preparation method of cadmium molybdate octahedron with controllable grain size

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Preparation contains 0.1mol / LCd 2+ The microemulsion A, wherein the mixed mass content of surfactant (alkyl polyoxyethylene (10) ether (OP-10)) and alcohol is 39%, the mol ratio ω of water and surfactant is 10, all the other are oil Phase content; the MoO with the corresponding content of each component consistent with that of microemulsion A was obtained 4 2- microemulsion B. Under the condition of stirring at room temperature, microemulsion A was added dropwise into microemulsion B, and the stirring was continued for 30 minutes after the dropwise addition was completed. After the stirring was stopped, it was sealed, and left to stand at room temperature for 48 hours of aging. Centrifugal separation, washing to obtain cadmium molybdate octahedral particles with a particle diameter of about 30 nanometers, such as figure 1 .

Embodiment 2

[0028] Preparation contains 0.1mol / LCd 2+ The microemulsion A, wherein the mixed mass content of surfactant (alkyl polyoxyethylene (10) ether (OP-10)) and alcohol is 34%, the mol ratio ω of water and surfactant is 10, all the other are oil Phase content; the MoO with the corresponding content of each component consistent with that of microemulsion A was obtained 4 2- microemulsion B. Under the condition of stirring at room temperature, microemulsion A was added dropwise into microemulsion B, and the stirring was continued for 30 minutes after the dropwise addition was completed. After the stirring was stopped, it was sealed, and left to stand at room temperature for 48 hours of aging. Centrifugal separation, washing to obtain cadmium molybdate octahedral particles with a particle diameter of about 50 nanometers, such as figure 2 shown. The content of surfactant changes the size of microemulsion droplets, which in turn affects the particle size of the product.

Embodiment 3

[0030] Preparation contains 0.1mol / LCd 2+ The microemulsion A, wherein the mixed mass content of surfactant (alkyl polyoxyethylene (10) ether (OP-10)) and alcohol is 30%, the mol ratio ω of water and surfactant is 20, all the other are oil Phase content; the MoO with the corresponding content of each component consistent with that of microemulsion A was obtained 4 2- microemulsion B. Under the condition of stirring at room temperature, microemulsion A was added dropwise into microemulsion B, and the stirring was continued for 30 minutes after the dropwise addition was completed. After the stirring was stopped, it was sealed, and left to stand at room temperature for 48 hours of aging. Centrifugal separation, washing to obtain cadmium molybdate octahedral particles with a particle diameter of about 200 nanometers, such as image 3 shown. The increase of water content and the decrease of surfactant content all make the microemulsion droplet enlarge, so as to obtain the parti...

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
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a preparation method of cadmium molybdate octahedrons with controllable grain size. The method comprises the following steps: adopting quaternary microemulsion composed of nonionic surfactant alkyl polyethenoxy (10) ether (OP-10), cyclohexane, n-octanol and water, using sodium molybdate and cadmium nitrate as reactants, mixing the components of inverse microemulsion, violently stirring with a magnetic stirrer to obtain uniform and transparent inverse microemulsion with stable property, then dropwise adding the microemulsion with cadmium nitrate in the microemulsion withsodium molybdate to react, ageing, centrifugalizing and washing the product with acetone, absolute ethanol and secondary water repeatedly to obtain the cadmium molybdate octahedrons having uniform shape, size and height. The invention adopts the technical scheme that the template action of the inverse micell microemulsion is used to prepare barium molybdate octahedrons so as to solve the problem that the grain size of the product is hard to control by using the existing preparation method of cadmium molybdate octahedrons. The method of the invention is characterized by simple production technology, safe production process and difficult agglomeration of the product and can be widely used in the preparation of inorganic functional materials.

Description

technical field [0001] The invention relates to the preparation of an inorganic functional material, in particular to a method for preparing a cadmium molybdate octahedron with a controllable particle size by using an inverse microemulsion system. Background technique [0002] Scheelite-type tetragonal metal molybdate, due to its special photoelectric performance, scintillator performance, humidity sensing performance, etc., makes it a substance that has attracted much attention in the field of inorganic functional materials. Metal molybdate is not only an excellent photoelectric functional material, but also has potential applications in humidity sensors, laser substrates, etc. The unique properties endowed by the novel structure at the nanoscale will enable molybdates to be used in a wider range of fields. In recent years, most of the research has focused on the research of molybdates such as Ca, Sr, and Ba, and the research on CdMoO 4 There are relatively few research r...

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): C01G39/00
Inventor 黄在银米艳李艳芬姜俊颖
Owner GUANGXI UNIV FOR NATITIES
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