Double-shell hollow spherical organic metal framework material and preparation method thereof

An organometallic, hollow spherical technology, applied in the direction of organic chemistry, zinc organic compounds, etc., can solve problems such as unseen technical solutions, achieve high chemical and thermal stability, large specific surface area, and wide range of applications.

Inactive Publication Date: 2010-08-18
SHANGHAI NORMAL UNIVERSITY
View PDF1 Cites 29 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After extensively consulting public publications and patent documents at home and abroad, there is no technical solution identical to the organometallic framework material and preparation method of the hollow sphere structure of the present invention

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
  • Double-shell hollow spherical organic metal framework material and preparation method thereof
  • Double-shell hollow spherical organic metal framework material and preparation method thereof
  • Double-shell hollow spherical organic metal framework material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Preparation of sulfonated PS beads template: At room temperature, 10 g of freeze-dried hollow PS beads were ultrasonically dispersed in 300 ml of concentrated H 2 SO 4 , stirred in an oil bath at 40°C for 15 minutes, dispersed in a mixed solution of 1000 ml of water and ethanol, settled, centrifuged, washed until neutral, and freeze-dried to prepare sulfonated PS pellets for later use.

Embodiment 2

[0041] Take 200 mg of the above-mentioned sulfonated PS pellets, disperse them in 45 ml of methanol with 90 W ultrasound, and stir for 10 minutes. Methanol solution of zinc nitrate hexahydrate Dissolve 0.667g of zinc nitrate hexahydrate in 45ml of methanol, add and continue to stir, add 1.47g of 2-methylimidazole after 10 minutes, stir for an hour, let stand, centrifuge, wash with methanol, Drying at 40°C overnight gave a white solid.

Embodiment 3

[0043] The above-mentioned obtained white solid was post-treated, and in N 2 Under protection, calcined at 350° C. for 3 hours to remove the template to obtain a spherical organometallic framework compound ZIF-8 with double shells.

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
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention belongs to an organic metal framework material, and particularly relates to a double-shell hollow spherical organic metal framework material (HS-ZIF-8) and a preparation method thereof. The material is of spherical particles, the granularity is 300 to 500 nm, and the material is provided with a double-layer hollow shell structure. The preparation method comprises the following stepsthat: sulfonated polystyrene pellets are scattered into methanol aqueous solution to be undertaken the ultrasonic treatment and be mixed for 5 to 15 minutes; zinc salt methanol solution is added and mixed; imidazole ligand is added; the mixed solution is mixed for 1 hour, held, centrifuged, washed by methanol and dried for 12 hours at the temperature of 40 DEG C to obtain white solid; under the protection of N2, the white solid is burned for 2 to 4 hours at the temperature of 300 to 400 DEG C to obtain the double-shell hollow spherical organic metal framework compound material. The double-shell hollow spherical organic metal framework compound material has the advantages that: the material has unique appearance feature, large specific surface area and high chemical and thermal stability, and has promising prospects in the fields such as gas storage, separation, sensor technology, nano parts and the like.

Description

technical field [0001] The invention relates to an organic metal frame material, in particular to a double-shell hollow spherical organic metal frame material and a preparation method thereof. Background technique [0002] Metal-organic framework materials are a class of supramolecular porous materials formed by the self-assembly of organic ligands and metal ions through coordination chemistry. Because of their regular and uniform nanopore structure, high porosity, and large specific surface area , has broad application prospects in the fields of adsorption, filtration and catalysis. Metal-organic frameworks (MOFs), which are complexed by organic and inorganic compounds, are different from porous materials such as zeolite and activated carbon in terms of construction mode. It is also possible to use organic bridging units and metal ions to assemble solids with various geometric structures. Compared with the traditional molecular sieve aluminum phosphate system, MOFs have t...

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): C07F3/06C07D233/58C07D233/88
Inventor 张昉康春梅黄建林李和兴
Owner SHANGHAI NORMAL UNIVERSITY
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