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

Preparation method of flower shape molybdenum dioxide nano powder

A technology of nano-powder and molybdenum dioxide, which is applied in the field of preparation of flower-like molybdenum dioxide nano-powder, achieving the effects of low cost, uniform size and good monodispersity

Inactive Publication Date: 2017-10-24
XIAN UNIV OF TECH
View PDF4 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the synthesized MoO 2 Most of them are one-dimensional rods, and there are few literature reports about nanoflower-like MoO 2 Granule preparation method

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 flower shape molybdenum dioxide nano powder
  • Preparation method of flower shape molybdenum dioxide nano powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A flower-like MoO 2 The preparation method of nanopowder, comprises the steps:

[0022] Add 3M molybdenum powder to a clean 100mL beaker, then add 2.0mL of H 2 O, until the dispersion is uniform, add 2.0mL of H 2 o 2 , after the reaction is finished, seal it with plastic wrap, and let it stand overnight for 24 hours. Then add the molybdic acid precursor solution obtained above to 20mL of absolute ethanol, stir evenly, transfer to 50mL polytetrafluoroethylene liner, and put it into a 50mL stainless steel jacket, and conduct a hydrothermal reaction at 180°C for 8h. Then it was naturally cooled to room temperature, the obtained product was centrifuged and washed several times with water and absolute ethanol, and the obtained sample was dried at 60° C. for 12 hours.

Embodiment 2

[0024] Add 3M molybdenum powder to a clean 100mL beaker, then add 2.0mL of H 2 O, until the dispersion is uniform, add 1.0mL of H 2 o 2 , after the reaction is finished, seal it with plastic wrap, and let it stand overnight for 24 hours. Then add 8 mL of absolute ethanol to the molybdic acid precursor solution obtained above, stir evenly, transfer to 50 mL polytetrafluoroethylene lining, and put it into a 50 mL stainless steel jacket, and conduct a hydrothermal reaction at 180°C for 8 hours. Then it was naturally cooled to room temperature, the obtained product was centrifuged and washed several times with water and absolute ethanol, and the obtained sample was dried overnight at 60°C.

Embodiment 3

[0026] Add 3M molybdenum powder (550nm) to a clean 100mL beaker, then add 2.0mL of H 2 O, until the dispersion is uniform, add 1.0mL of H 2 o 2 , after the reaction is finished, seal it with plastic wrap, and let it stand overnight for 24 hours. Then add the molybdic acid precursor solution obtained above to 20mL of absolute ethanol, stir evenly, transfer to 50mL polytetrafluoroethylene liner, and put it into a 50mL stainless steel jacket, and conduct a hydrothermal reaction at 180°C for 8h. Then it was naturally cooled to room temperature, the obtained product was centrifuged and washed several times with water and absolute ethanol, and the obtained sample was dried at 60° C. for 12 hours.

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 a preparation method of a flower shape molybdenum dioxide nano powder. According to the preparation method, molybdenum powder is directly oxidized and dissolved by hydrogen peroxide to prepare a molybdic acid precursor, and then a hydrothermal method is performed to prepare the flower shape molybdenum dioxide nano powder in one step through in-situ preparation. The nano MoO2 particle has good mono-dispersion and unique morphology. The flower shape nano MoO2 particle is obtained by self assembly of basic structural units with a size of several nanometers. The structural shortages of common nano MoO2 such as single dimension, easy agglomeration, large size, and the like, are overcome. The excellent optical performance of nano materials is exerted. The comprehensive performances of the material, in particular photocatalytic performance, are optimized.

Description

technical field [0001] The invention relates to a photocatalytic material and a preparation method thereof, in particular to a flower-shaped molybdenum dioxide (MoO2) with good monodispersity. 2 ) The preparation method of nanopowder. Background technique [0002] Semiconductor material is an important photocatalyst, which has shown outstanding potential and great commercial value in the utilization of sunlight. Therefore, it has received extensive attention from researchers. As a typical transition metal oxide, molybdenum oxide has rich chemical valence states, which makes its application fields diversified and important. where MoO 2 It has good electrical conductivity different from ordinary oxides, it is different from MoO 3 Mo in 6+ , Mo 6+ The free electrons of MoO are bound by the surrounding coordinated O, while MoO 2 The higher density of free electrons in the valence band increases the Mo 4+ The catalytic activity of MoO 2 It shows good catalytic performanc...

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): C01G39/02B82Y30/00B01J23/28
CPCB82Y30/00C01G39/02B01J23/28C01P2004/64C01P2004/30C01P2002/72C01P2004/04B01J35/39
Inventor 梁淑华苟旭丰孙少东邹军涛肖鹏
Owner XIAN UNIV OF 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