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

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, ...

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.

Images