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

Preparation method of bismuth (III) trioxide-bismuth oxycarbonate nano complex through room temperature solid phase chemical reactions

A technology of bismuth oxycarbonate nanometer and bismuth trioxide, which is applied in chemical instruments and methods, bismuth compounds, chemical/physical processes, etc., can solve the problems of reducing the active surface of products, hard agglomeration of product particles, and reducing product performance, etc. The effect of easy industrial production, simple preparation process and convenient operation

Active Publication Date: 2018-06-29
BENGBU COLLEGE
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the current two-step method of liquid phase preparation and heat treatment can prepare Bi 2 o 3 -Bi 2 o 2 CO 3 Composite oxides, but solvents are required in the preparation process, and then high-temperature calcination is required, the preparation cost is high and the operation is complicated. At the same time, high-temperature calcination can easily lead to hard agglomeration of product particles, reduce the active surface of the product, and reduce the performance of the product.

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 bismuth (III) trioxide-bismuth oxycarbonate nano complex through room temperature solid phase chemical reactions
  • Preparation method of bismuth (III) trioxide-bismuth oxycarbonate nano complex through room temperature solid phase chemical reactions
  • Preparation method of bismuth (III) trioxide-bismuth oxycarbonate nano complex through room temperature solid phase chemical reactions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Weigh 0.01 mole of sodium bismuthate dihydrate and 0.01 mole of sodium bisulfite according to a molar ratio of 1:1 and add them to a 50 mL zirconia ball mill jar equipped with 50 zirconia balls with a diameter of 6 mm and 8 zirconia balls with a diameter of 10 mm. Continuous ball milling in QM-3SP04 planetary high-energy ball mill at 480rpm for 10 hours, the product was washed with distilled water, centrifuged and vacuum-dried at 60°C and 0.1Mpa vacuum for 2 hours to obtain the target product.

Embodiment 2

[0022] Weigh 0.01 mole of sodium bismuthate dihydrate and 0.01 mole of sodium bisulfite at a molar ratio of 1:1 and add them to a 50 mL zirconia ball mill jar equipped with 50 zirconia balls with a diameter of 6 mm and 8 zirconia balls with a diameter of 10 mm. Continuous ball milling in QM-3SP04 planetary high-energy ball mill at 480rpm for 15 hours, the product was washed with distilled water, centrifuged and vacuum-dried at 60°C and 0.1Mpa vacuum for 2 hours to obtain the target product.

Embodiment 3

[0024] Weigh 0.01 mole of sodium bismuthate dihydrate and 0.01 mole of sodium bisulfite at a molar ratio of 1:1 and add them to a 50 mL zirconia ball mill jar equipped with 50 zirconia balls with a diameter of 6 mm and 8 zirconia balls with a diameter of 10 mm. Continuous ball milling in QM-3SP04 planetary high-energy ball mill at 480rpm for 20 hours, the product was washed with distilled water, centrifuged and vacuum-dried at 60°C and 0.1Mpa vacuum for 2 hours to obtain the target product.

[0025] The X-ray diffraction analysis (XRD analysis) of above-mentioned embodiment gained target product: the target product that embodiment 1,2 and 3 are made and raw material sodium bismuthate dihydrate are carried out XRD analysis respectively, and the results are shown in figure 1 , it can be seen that only Bi 2 o 3 and Bi 2 o 2 CO 3 There is no characteristic diffraction peak of the raw material sodium bismuthate, indicating that the solid phase reaction between sodium bismuthate...

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 bismuth (III) trioxide-bismuth oxycarbonate nano complex through room temperature solid phase chemical reactions. According to the preparation method,solid phase raw materials namely sodium bismuthate dihydrate and sodium hydrogen sulfite are mixed, then ball-milling solid phase reactions are carried out in the presence of CO2, and finally the reaction product is washed, centrifugally separated, and dried to obtain the target product namely a Bi2O3-Bi2O2CO3 nano complex. Solids are mixed, the raw materials are ball-milled at room temperature to carry out solid phase reactions, the preparation process is simple and is easy to control, the agglomeration of product particles is largely reduced; a redox agent, a template agent, or a solvent isnot needed, the product purity is improved therefore, the green synthesis is realized, and the method is suitable for large scale production.

Description

technical field [0001] The invention belongs to the field of nanomaterials and their preparation, in particular to a Bi 2 o 3 -Bi 2 o 2 CO 3 Methods for the preparation of nanocomposites. Background technique [0002] In recent years, bismuth-based compound semiconductors, as a new class of semiconductor materials, have been extensively studied due to their unique layered structure and excellent physical and chemical properties. Therefore, bismuth-based compound semiconductors are widely used, such as solar cells, sensors, dielectric materials, nonlinear optical materials, and photocatalytic materials. Bismuth oxycarbonate (Bi 2 o 2 CO 3 ), as one of the representatives of bismuth-based compound semiconductors with an Aurivillius-type oxide structure, has a typical "sillén" structure, namely (Bi 2 o 2 ) 2+ Atomic layer, (CO 3 ) 2- A layered structure in which atomic layers are arranged alternately. The strong built-in electric field between the bismuth oxygen a...

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): B01J27/232B01J35/02C01G29/00B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G29/00B01J27/232C01P2004/80B01J35/40B01J35/39
Inventor 张茂林葛金龙刘伟王传虎高燕
Owner BENGBU COLLEGE
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