Supercharge Your Innovation With Domain-Expert AI Agents!

Method for hydrothermal production of magnesium hydroxide nano-film from magnesium oxide

A technology of nano-film and magnesium hydroxide, which is applied in the direction of chemical instruments and methods, nanotechnology, single crystal growth, etc., can solve the problems of restricting industrial production, long reaction time, low investment, etc., and achieve large-scale industrial production and fast The effect of preparation and broad development prospects

Active Publication Date: 2018-03-30
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the deposition method has low investment, low preparation cost, energy saving and environmental protection, but the reaction time is too long
And when the reaction time is long, the shape of the product is easy to change from a two-dimensional compact structure to a three-dimensional flower-like structure, which greatly limits its industrial production.

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
  • Method for hydrothermal production of magnesium hydroxide nano-film from magnesium oxide
  • Method for hydrothermal production of magnesium hydroxide nano-film from magnesium oxide
  • Method for hydrothermal production of magnesium hydroxide nano-film from magnesium oxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take Δn Cl - Put 20 g of activated magnesium oxide at 5 mol / kg into 1500 ml of distilled water to prepare a magnesium oxide suspension, then add 12 ml of 100 wt% ethylene glycol amine solution to the magnesium oxide suspension, and put it into a high-pressure The hydrothermal reaction was carried out in the kettle. The hydrothermal temperature was 140 °C, the hydrothermal time was 3 h, and the stirring speed was 300 r / min. , to obtain a uniformly distributed, high-transparency single-layer magnesium hydroxide nano film. The SEM photos and XRD patterns of the product are as follows figure 1 with figure 2 shown.

Embodiment 2

[0027] Take Δn Cl - Put 20 g of active magnesium oxide of 12 mol / kg into 1500 ml of distilled water to prepare a suspension of magnesium oxide, then add 10 ml of diethanolamine solution with a concentration of 100 wt% to the suspension of magnesium oxide, and put it in an autoclave The hydrothermal reaction was carried out, the hydrothermal temperature was 180 °C, the hydrothermal time was 2 h, and the stirring speed was 200 r / min. After the hydrothermal reaction was completed, suction filtration, washing, filtration, and finally drying at 95 °C for 3 h gave Uniformly distributed, highly transparent single-layer magnesium hydroxide nano film. The SEM photos and XRD patterns of the product are as follows image 3 with Figure 4 shown.

Embodiment 3

[0029] Take Δn Cl - Put 20 g of activated magnesium oxide of 15 mol / kg into 1500 ml of distilled water to prepare a suspension of magnesium oxide, then add 15 ml of triethanolamine solution with a concentration of 100 wt% into the suspension of magnesium oxide, and put it in an autoclave The hydrothermal reaction was carried out, the hydrothermal temperature was 200 °C, the hydrothermal time was 1.5 h, and the stirring speed was 150 r / min. After the hydrothermal reaction was completed, suction filtration, washing, filtration, and finally drying at 95 °C for 3 h were obtained. Uniformly distributed, highly transparent single-layer magnesium hydroxide nano film. The SEM photos and XRD patterns of the product are as follows Figure 5 with Image 6 shown.

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

A method for hydrothermal production of a magnesium hydroxide nano-film from magnesium oxide belongs to the technical field of preparation of inorganic materials. The method, adopting active magnesiumoxide as a raw material, comprises the following steps: dissolving the magnesium oxide in distilled water to prepare a suspension having a certain initial solid content, adding a crystal form controlagent to the magnesium oxide suspension, carrying out a reaction under a hydrothermal condition for 0.5-5 h, and carrying out suction filtration, washing and drying to obtain the uniformly-distributed and highly-transparent magnesium hydroxide nano-film. The method has the advantages of mild conditions, simple technology, energy saving, environmental protection, and realization of the product growing on the surfaces of different matrix materials. The magnesium hydroxide nano-film produced through the method has the advantages of uniform distribution and high transparency, and can be applied to the industrial fields of solar cell production, composite films, high-performance inorganic molecular sieve films, flame-retardant additives, food fresh-keeping agents, magnetic material processingand heavy metal removers.

Description

technical field [0001] The invention relates to a method for hydrothermally preparing magnesium hydroxide nano-films from magnesium oxide, and belongs to the technical field of inorganic material preparation. Background technique [0002] Magnesium hydroxide film has the triple performance of filling, flame retardant and smoke control, it can be used as an inorganic additive flame retardant, and it is also an important precursor for preparing nano-magnesium oxide film. It has a large specific surface area, high activity, and strong adsorption capacity. It can be used as an acid-base neutralizer, flue gas desulfurizer, and heavy metal remover to absorb and remove Ni that is harmful to the environment from different industrial waste liquids. 2+ 、Co 2+ 、Cr 3+ and other heavy metal ions. [0003] Magnesium hydroxide film not only has the above-mentioned traditional industrial uses, but also can be applied in high-tech fields. Magnesium hydroxide thin film can be used to make...

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): C30B7/10C30B29/64C30B29/10B82Y40/00
CPCB82Y40/00C30B7/10C30B29/10C30B29/64
Inventor 马玉新白丽梅李萌赵文青孙志雅
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com