Spherical forming Cu base metal organic skeleton-graphene oxide composite material and preparation method of spherical forming Cu base metal organic skeleton-graphene oxide composite material

A graphene composite, organic framework technology, applied in the directions of alkali metal compounds, alkali metal oxides/hydroxides, chemical instruments and methods, etc., can solve the problems of decreased adsorption and separation performance, destruction of specific surface area, complicated process and other problems, To achieve the effect of improving adsorption performance, improving water resistance, and increasing micropore volume

Active Publication Date: 2014-12-24
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Rainer Ostermann et al. have made ZIF-8 into fibrous materials by electrospinning, and found that the pores are less blocked and still have a larger specific surface area (Ostermann R, Cravillon J, Weidmann C, Wiebcke M, Smarsly BM .Metal-organic framework nanofibers via electrospinning[J].Chemical communications.2011,47(1):442-4), but the process is complex and requires high equipment
[0005] To sum up, the existing MOFs material molding technology, in order to strengthen the mechanical strength, adds a large amount of adhesives and other substances, at the expense of sacrificing the pore structure, reducing the specific surface area or partially destroying the skeleton structure, resulting in a significant decline in its adsorption and separation performance.

Method used

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  • Spherical forming Cu base metal organic skeleton-graphene oxide composite material and preparation method of spherical forming Cu base metal organic skeleton-graphene oxide composite material
  • Spherical forming Cu base metal organic skeleton-graphene oxide composite material and preparation method of spherical forming Cu base metal organic skeleton-graphene oxide composite material

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Experimental program
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Effect test

Embodiment 1

[0038] Preparation of Cu-based organic framework-graphene oxide composite porous material powder:

[0039] 1.204g Cu(CH 3 COO) 2 ·H 2 Put O and 1.144g of 1,3,5-benzenetricarboxylic acid into a stainless steel ball mill tank, then add 0.0470g of graphene oxide, add stainless steel ball mill beads, and put it into the ball mill, and then under the condition of 1150r / min (46.75Hz) After ball milling for 45 minutes, the obtained solid powder was washed with ethanol aqueous solution (the volume ratio of ethanol to water is 1:1) and chloroform, and then centrifuged at 7000r / min to obtain the product, which was dried in an oven at 180°C to obtain the Cu Based organic framework-graphene oxide composite porous material powder, and mark this powder as HG-1.

Embodiment 2

[0041] Preparation of Cu-based organic framework-graphene oxide composite porous material powder:

[0042] 1.701g Cu(CH 3 COO) 2 ·H 2 Put O and 0.808g of 1,3,5-benzenetricarboxylic acid in a stainless steel ball milling tank, then add 0.125g of graphene oxide, add stainless steel ball milling beads, put it into the ball mill, and then ball mill at 1100r / min (42.97Hz) After 45 minutes, the obtained solid powder was washed with ethanol aqueous solution (the volume ratio of ethanol and water is 2:1) and chloroform, and then centrifuged at 5000r / min to obtain the product, which was dried in an oven at 100°C to obtain the Cu-based Organic framework-graphene oxide composite porous material powder, and mark this powder as HG-2.

Embodiment 3

[0044] Preparation of Cu-based organic framework-graphene oxide composite porous material powder:

[0045] 1.204g Cu(CH 3 COO) 2 ·H 2 Put O and 0.808g of 1,3,5-benzenetricarboxylic acid into a stainless steel ball milling tank, then add 0.161g of graphene oxide, add stainless steel ball milling beads, put it into the ball mill, and then ball mill at 1230r / min (50Hz) for 30 minutes After washing the obtained solid powder with ethanol aqueous solution (the volume ratio of ethanol and water is 1:1) and chloroform, the product was centrifuged at 6000r / min to obtain the product, which was dried in an oven at 160°C to obtain the Cu-based organic Skeleton-graphene oxide composite porous material powder, and mark this powder as HG-3.

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PUM

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Abstract

The invention belongs to the technical field of metal organic skeleton material forming and discloses a preparation method of the spherical forming Cu base metal organic skeleton-graphene oxide composite material. The method comprises the following specific steps: proportionally mixing water, methyl hydroxypropyl cellulose and silicate resin with Cu base organic skeleton-graphene oxide composite porous material powder which is synthesized by using a mechanical ball milling method so as to obtain a mixture, adding the mixture into a pelletizer, pelleting, and drying, so as to obtain the spherical forming Cu base metal organic skeleton-graphene oxide composite material. The spherical forming Cu base metal organic skeleton-graphene oxide composite material prepared by using the preparation method has the advantages of relatively large surface area, open pore structure and the like and has the special appearance, volume, mechanical strength, toughness and water resistance which are necessary for an actual industrial application.

Description

Technical field [0001] The invention belongs to the technical field of metal organic framework porous material forming, and specifically relates to a spherically formed Cu-based metal organic framework-graphene oxide composite material and a preparation method thereof. Background technique [0002] Metal Organic Frameworks (MOFs) are multi-dimensional network zeolite-like framework materials self-assembled by organic ligands containing oxygen or nitrogen elements and transition metal ions through metal-ligand complexation. MOFs materials have unique physical and chemical properties, such as high porosity, huge specific surface area, high thermal stability, regular pore structure, controllable pore size design, adjustable surface chemical group modification, unsaturated metal coordination, etc. It has attractive potential application prospects in many fields such as gas storage, gas adsorption and separation, selectivity and chiral catalysts, microreactors, molecular recognition, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30
Inventor 夏启斌苗晋朋李玉洁李忠奚红霞
Owner SOUTH CHINA UNIV OF TECH
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