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

Preparation method of silicon-containing layered double hydroxide

A hydroxide and bimetal technology is applied in the field of preparation of silicon-containing layered bimetallic hydroxide, can solve the problems of environmental pollution, single synthesis method, energy waste and the like, achieves good crystallinity, simple preparation process, Low energy consumption effect

Active Publication Date: 2021-06-25
SHANDONG UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reported Si-LDHs are mainly prepared by co-precipitation or hydrothermal method, the synthesis method is single, and it will cause environmental pollution and energy waste.

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 silicon-containing layered double hydroxide
  • Preparation method of silicon-containing layered double hydroxide
  • Preparation method of silicon-containing layered double hydroxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method of silicon-containing layered double metal hydroxide, comprising the following steps:

[0035] (1) Weigh 2.864g magnesium hydroxide, 1.136g aluminum hydroxide and 196g agate balls (ball-to-material ratio 49:1), add them to a 100mL ball mill jar, and ball mill them at 1500rpm for 4h to obtain the hydroxide mixture; 0.178 g of the obtained hydroxide mixture was stirred and dispersed in 30 mL of water to obtain a hydroxide mixture dispersion.

[0036] (2) Add 17 μL of SiCl to the hydroxide mixture dispersion obtained in step (1) 4 , stir well to obtain a suspension, transfer the obtained suspension to a glass bottle, and place it in an oven at 80°C for 24 hours, then cool it to room temperature naturally, filter, wash the obtained precipitate with water three times, and store it at 60°C After drying for 24 hours, Mg-Al-Si LDHs powder is obtained, which is silicon-containing layered double metal hydroxide powder.

[0037] The XRD pattern of the Mg-Al-...

Embodiment 2

[0039] A preparation method of silicon-containing layered double metal hydroxide, comprising the following steps:

[0040] (1) Weigh 2.760g magnesium hydroxide, 1.240g aluminum hydroxide and 196g agate balls (ball-to-material ratio 49:1), add them to a 100mL ball mill jar, and ball mill them at 1500rpm for 4h to obtain a hydroxide mixture; 0.163 g of the obtained hydroxide mixture was stirred and dispersed in 30 mL of water to obtain a hydroxide mixture dispersion.

[0041] (2) Add 8.5 μL of SiCl to the hydroxide mixture dispersion obtained in step (1) 4 , fully stirred to obtain a suspension, transferred the obtained suspension to a glass bottle, and placed it in an oven at 80°C for 24 hours, then naturally cooled to room temperature, filtered, and washed the obtained precipitate with water for 3 times, at 60°C After drying for 24 hours, Mg-Al-Si LDHs powder is obtained, which is silicon-containing layered double metal hydroxide powder.

Embodiment 3

[0043] A preparation method of silicon-containing layered double metal hydroxide, comprising the following steps:

[0044] (1) Weigh 2.890g nickel hydroxide, 1.110g ferric hydroxide and 196g agate balls (ball-to-material ratio 49:1), add them to a 100mL ball mill jar, and ball mill them at 1500rpm for 4h to obtain a hydroxide mixture; 0.288 g of the obtained hydroxide mixture was stirred and dispersed in 30 mL of water to obtain a hydroxide mixture dispersion.

[0045] (2) Add 17 μL of SiCl to the hydroxide mixture dispersion obtained in step (1) 4 , fully stirred to obtain a suspension, transferred the obtained suspension to a glass bottle, and placed it in an oven at 80°C for 24 hours, then naturally cooled to room temperature, filtered, and washed the obtained precipitate with water for 3 times, at 60°C Dry for 24 hours to obtain Ni-Fe-Si LDHs powder, that is, silicon-containing layered double metal hydroxide powder.

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
Horizontal sizeaaaaaaaaaa
Thicknessaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention provides a preparation method of a silicon-containing layered double-metal hydroxide, the preparation method comprises the following steps: mixing a divalent metal ion hydroxide and a trivalent metal ion hydroxide, and carrying out ball milling to obtain a hydroxide mixture; then dispersing the obtained hydroxide mixture in a solvent to obtain hydroxide mixture dispersion liquid; adding SiCl4 into the hydroxide mixture dispersion liquid, fully stirring to obtain a suspension liquid, and then standing and aging; and after the reaction is finished, filtering, washing and drying to obtain silicon-containing layered double-metal hydroxide powder. The method disclosed by the invention is mild in experimental condition, simple to operate, low in energy consumption, less in sewage discharge, high in yield, easy to industrialize and the like. The prepared product has high specific surface area and crystallinity, and has great application value in the fields of catalysis, energy storage, flame retardants, composite materials and the like.

Description

technical field [0001] The invention relates to a method for preparing a silicon-containing layered double metal hydroxide, which belongs to the technical field of functional materials and their preparation. Background technique [0002] Layered double hydroxides (LDHs), also known as hydrotalcite-like, are hydroxides with a hydrotalcite crystal structure composed of two or more metal elements. LDHs have a layered structure, the laminates are structurally positively charged due to homocrystal substitution, and there are exchangeable anions between the layers, which is a class of layered materials that have attracted much attention in recent years. LDHs have the advantages of high specific surface area, good dispersion of metal ions, small grain size, adjustable composition (such as anion and cation types), easy compounding with other materials to realize functionalization, simple synthesis method and low price, so they are widely used in adsorbents. , energy storage materia...

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): C01B33/00C01F7/00C01G53/00C01G51/00C01G3/00B82Y40/00
CPCC01B33/00C01G53/00C01G51/00C01G3/00B82Y40/00C01P2006/12C01P2002/72C01P2004/04C01P2004/03C01P2002/22C01P2004/20C01F7/78
Inventor 侯万国田震杜娜李海平宋淑娥
Owner SHANDONG UNIV
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