Preparation method and application of magnetic MOF composite

A composite material and magnetic technology, applied in chemical instruments and methods, alkali metal compounds, other chemical processes, etc., can solve the problems of limited adsorption capacity and small specific surface area, and achieve adjustable pore size, large specific surface area, and simple preparation Effect

Inactive Publication Date: 2017-07-28
KUNMING UNIV OF SCI & TECH
View PDF1 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Methylene blue is a common organic dye. The traditional adsorbents for methylene blue are mainly carbon materials, but their specific surface area is relatively small, which limits their adsorption capacity.

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 and application of magnetic MOF composite
  • Preparation method and application of magnetic MOF composite
  • Preparation method and application of magnetic MOF composite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: a kind of preparation method of magnetic MOF composite material, concrete steps are as follows:

[0023] (1) Add 1.5g FeCl 3 ·6H 2 O was dissolved in 30 mL of ethylene glycol solvent, and 0.8 g of acetic acid trihydrate (FeCl 3 ·6H 2 The mass ratio of O to acetic acid trihydrate is 1.5:0.8) Stir for 30min, pour the resulting mixture into a stainless steel reaction kettle, react at a temperature of 180°C for 7h, cool to room temperature, wash with ethanol and deionized water, and carry out by a magnet Magnetic Fe 3 o 4 nanoparticles;

[0024] (2) According to nano Fe 3 o 4 The solid-to-liquid ratio g:mL of particles and deionized water is a ratio of 0.57:100, and the nano-Fe obtained in step (1) 3 o 4 Disperse in deionized water, and carry out ultrasonic dispersion for 30min, in an inert gas N 2 Under the atmosphere, heated to a temperature of 60°C to obtain nano-Fe 3 o 4 Suspension, the Na 2 SiO 3 Solution (Na 2 SiO 3 The concentration of t...

Embodiment 2

[0028] Embodiment 2: a kind of preparation method of magnetic MOF composite material, concrete steps are as follows:

[0029] (1) Add 1.5g FeCl 3 ·6H 2 O was dissolved in 35 mL of ethylene glycol solvent, and 1.0 g of acetic acid trihydrate (FeCl 3 ·6H 2 The mass ratio of O to acetic acid trihydrate is 1.5: 1.0) Stir for 35min, pour the resulting mixture into a stainless steel reactor, react at a temperature of 185°C for 7h, cool to room temperature, wash with ethanol and deionized water, and conduct Magnetic Fe 3 o 4 nanoparticles;

[0030] (2) According to nano Fe 3 o 4 The solid-to-liquid ratio g:mL of particles and deionized water is the ratio of 0.60:100, and the nano-Fe obtained in step (1) 3 o 4 Disperse in deionized water, and carry out ultrasonic dispersion for 40min, in an inert gas N 2 Under the atmosphere, heated to a temperature of 65°C to obtain nano-Fe 3 o 4 Suspension, the Na 2 SiO 3 Solution (Na 2 SiO 3 The concentration of the solution is 1.2mol...

Embodiment 3

[0034] Embodiment 3: a kind of preparation method of magnetic MOF composite material, concrete steps are as follows:

[0035] (1) Add 2.5g FeCl 3 ·6H 2 O was dissolved in 40 mL of ethylene glycol solvent, and 1.0 g of acetic acid trihydrate (FeCl 3 ·6H 2 The mass ratio of O to acetic acid trihydrate is 2.5:1.0) Stir for 35min, pour the resulting mixture into a stainless steel reactor, react at a temperature of 190°C for 7.5h, cool to room temperature, wash with ethanol and deionized water, pass through a magnet Separation to obtain magnetic Fe 3 o 4 nanoparticles;

[0036] (2) According to nano Fe 3 o 4 The solid-to-liquid ratio g:mL of particles to deionized water is a ratio of 0.65:100, and the nano-Fe obtained in step (1) 3 o 4 Disperse in deionized water, and carry out ultrasonic dispersion for 50min, in an inert gas N 2 Under the atmosphere, heated to a temperature of 70°C to obtain nano-Fe 3 o 4 Suspension, the Na 2 SiO 3 Solution (Na 2 SiO 3 The concentr...

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
adsorption capacityaaaaaaaaaa
Login to view more

Abstract

The invention relates to a preparation method and application of a magnetic MOF composite and belongs to the technical field of material preparation. The preparation method comprises the following steps: preparing superparamagnetic ferroferric oxide nanoparticles by adopting a solvent thermal process, taking superparamagnetic ferroferric oxide as a core, coating a silicon dioxide shell on the surface of ferroferric oxide by adopting a hydrolysis method, so that Fe3O4@SiO2 nanoparticles are obtained, dissolving ferric trichloride hexahydrate and terephthalic acid into methylene formamide (DMF) to obtain DMF mixed liquor, then adding the Fe3O4@SiO2 nanoparticles and the DMF mixed liquor into a reaction kettle, and reacting, so that the magnetic MOF composite is obtained. The magnetic MOF composite can be used for adsorption of organic dye methylene blue.

Description

technical field [0001] The invention relates to a preparation method and application of a magnetic MOF composite material, belonging to the technical field of material preparation. Background technique [0002] With the rapid development of my country's dye and printing and dyeing industries, the discharge of dye wastewater has increased rapidly, and a large number of organic pollutants that are difficult to biodegrade are discharged into water bodies, causing serious water pollution. Methylene blue is a common organic dye. The traditional adsorbents for methylene blue are mainly carbon materials, but their specific surface area is relatively small, which limits their adsorption capacity. Contents of the invention [0003] The present invention aims at the shortcomings of existing methylene blue adsorbents, and provides a preparation method and application of a magnetic MOF composite material. A solvothermal method is used to prepare superparamagnetic ferroferric oxide nan...

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): B01J20/22B01J20/28B01J20/30C02F1/28C02F101/30
CPCB01J20/226B01J20/06B01J20/103B01J20/28009B01J20/28019C02F1/288C02F2101/308
Inventor 汤立红金旭李凯宁平孙鑫包双友朱婷婷张秀英周玲玲
Owner KUNMING UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap