Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of amino acid functionalized metal organic framework material and its preparation method and application

A metal-organic framework, amino acid technology, applied in chemical instruments and methods, other chemical processes, water/sludge/sewage treatment, etc. The effect of good application and economic value, rich material sources, and simple preparation process

Active Publication Date: 2022-03-25
CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The different forms of palladium in palladium-containing waste liquid is one of the important reasons for the decrease of palladium recovery rate
[0004] CN107130114A discloses a method for the separation and recovery of palladium in palladium-containing waste liquid, which adopts chitosan derivatives and palladium waste liquid to form flocs to realize the separation of palladium and waste liquid, and the above-mentioned method is more loaded down with trivial details
CN 109438719 A discloses a modified metal-organic framework composite material and a preparation method. This patent proposes the concept of using a metal-organic framework modified material as an adsorption material, but the modification operation of the metal-organic framework material used in the document Complex, with a wide variety of raw materials

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation of an amino acid-functionalized metal-organic framework material is operated according to the following process steps:

[0026] 1) Dissolve 10.1 g of zirconium oxychloride octahydrate and 6.6 g of trimesic acid in a mixed solvent composed of DMF (250 mL) and formic acid (250 mL), stir evenly, and transfer the solution to a polytetrafluoroethylene interior. In a stainless steel reaction kettle, the reaction was allowed to stand at 130°C for 2 days, cooled to room temperature, and then centrifuged. The obtained solid was washed with washing liquid DMF, water and acetone in turn, and then vacuum-dried at 100°C for 12 hours.

[0027] 2) 10g of glycine is dissolved in 50mL of water to prepare a glycine solution;

[0028] 3) Add 3.6g MOF-808 to the solution prepared in step 2, ultrasonically disperse for 5 minutes, then transfer the dispersion to a stainless steel reactor equipped with a polytetrafluoroethylene liner, and seal it at 80°C for 12 hours. , centr...

Embodiment 2

[0030] The operation steps are the same as those in Example 1, except that methionine is used as an amino acid to replace glycine, and the preparation method of the amino acid solution is changed as follows: 5 g of methionine is dissolved in a mixed solvent of 50 mL of water and 30 mL of DMF at 80 ° C to prepare a methionine solution, Finally, a methionine-functionalized metal-organic framework material was obtained.

Embodiment 3

[0032] The operation steps are the same as those in Example 1, except that histidine is used as an amino acid instead of glycine, and the preparation method of the amino acid solution is changed as follows: 6.5 g of histidine is dissolved in 80 mL of water at 80 ° C to prepare a histidine solution, Finally, a histidine-functionalized metal-organic framework material is obtained.

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

The invention discloses a metal-organic framework material functionalized with amino acids. The material includes a MOF-808 matrix and amino acid ligands introduced on its nodes. The modified metal-organic framework composite material of the invention can be used as an adsorbent for The adsorption rate of palladium ions is high, and the selectivity to ions in the solution is good, and the material can be reused many times, and the adsorption performance is basically unchanged. The invention further discloses a preparation method of the material. The modified raw material used in the method is amino acid, the source of the material is very rich, and the preparation process is very simple. The modified metal-organic framework composite material of the invention has great potential in the adsorption and separation of palladium ions, and has good application and economic value.

Description

technical field [0001] The invention belongs to the field of separation, recycling and utilization of palladium ions, in particular to an amino acid-functionalized metal-organic framework material and a preparation method and application thereof. Background technique [0002] Palladium is a platinum group metal that can be used in electroplating, catalysts, dental alloys, brazing alloys and various contact materials. It has unique physical and chemical properties and is widely used in chemical catalysis, aerospace, microelectronics, and exhaust gas purification. It plays a key and core role in cutting-edge science and modern industries such as petrochemicals, electrical and electronic, environmental protection, biopharmaceuticals, and national defense. With the increasing importance of environmental protection and the in-depth development and application of catalysts, the demand for metal palladium has grown rapidly. Facing the sustainable utilization of resources and the r...

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 Patents(China)
IPC IPC(8): B01J20/22B01J20/30C02F1/28
CPCB01J20/226C02F1/285
Inventor 李敏江欣悦冯建李欢蒋松山孟晓静肖鹏
Owner CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com