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

Metal-organic frameworks based on cu(i) and their preparation methods and applications

A metal-organic framework and organic ligand technology, applied in the direction of 1/11 organic compounds without C-metal bonds, organic chemistry, copper organic compounds, etc., to achieve high selectivity, ensure accuracy, and low detection limit

Inactive Publication Date: 2017-11-10
SHANDONG NORMAL UNIV
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although people have developed a lot of sensors for HCl, there are few reports on high-sensitivity sensors with good specificity, easy to use, and visible to the naked eye, and it is worth continuing to study

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
  • Metal-organic frameworks based on cu(i) and their preparation methods and applications
  • Metal-organic frameworks based on cu(i) and their preparation methods and applications
  • Metal-organic frameworks based on cu(i) and their preparation methods and applications

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] 1. Preparation of organic ligand L

[0061] To 3.48g of 2,4,6-triethyl-1,3,5-trimellitic acid chloride, 4.41g of 5-(3-pyridyl)tetrazole and 10ml of anhydrous pyridine were added to react at 120°C for 2h. After the system was cooled, 100 ml of water was added, and the dark crude product was obtained by suction filtration, dried, and column chromatography (ethyl acetate) to obtain 3.1 g of light yellow powder, with a yield of 53%. We passed 1 H NMR and IR characterize the compound, and the results are shown in Figure 4 with Figure 5 . 2,4,6-Triethyl-1,3,5-trimellitic acid chloride References C.-W.Zhao,J.-P.Ma,Q.-K.Liu,Y.Yu,P.Wang ,Y.-A.Li,K.Wang and Y.-B.Dong,Green Chem.,2013,15,3150-3154.

[0062]

[0063] 2. Synthesis of CuI-MOF

[0064] 30 mg of organic ligand L and 40 mg of CuI were respectively dissolved in 10 mL of acetonitrile, the two were mixed uniformly, and allowed to stand at 10°C for 15 hours to obtain 53 mg of metal organic framework CuI-MOF, with a yield of 7...

Embodiment 2

[0082] 1. Preparation of organic ligand L

[0083] Add 3.88 g of 5-(3-pyridyl)tetrazole and 9.5 mL of anhydrous pyridine to 2.80 g of 2,4,6-triethyl-1,3,5- trimesoyl chloride, and react at 110°C for 3.5 h. After the system was cooled, 100 mL of water was added, the dark crude product was obtained by suction filtration, dried, and column chromatography (ethyl acetate) was used to obtain 3.0 g of light yellow powder, with a yield of 52%.

[0084] 2. Synthesis of CuI-MOF

[0085] Dissolve 27 mg of organic ligand L and 30 mg of CuI in 9 mL of acetonitrile respectively, mix the two uniformly, and stand at 30°C for 12 hours to obtain 51 mg of metal organic framework CuI-MOF, with a yield of 76% (based on L).

[0086] 3. I 2 Synthesis of @CuI(Cl)-MOF

[0087] The CuI-MOF crystals prepared in Example 2 were placed in a 50 mL container with a concentration of HCl (g) of 200 ppm at 25°C, taken out for 14 minutes, and allowed to stand in the air for 150 minutes to obtain I 2 @CuI(Cl)-MOF.

[0088]...

Embodiment 3

[0091] 1. Preparation of organic ligand L

[0092] To 3.80g of 2,4,6-triethyl-1,3,5-trimellitic acid chloride was added 5.51g of 5-(3-pyridyl)tetrazole, 11mL of anhydrous pyridine, and reacted at 130°C for 1.5h. After the system was cooled, 100 mL of water was added, and the dark crude product was obtained by suction filtration, dried, and column chromatography (ethyl acetate) to obtain 3.2 g of pale yellow powder, with a yield of 55%.

[0093] 2. Synthesis of CuI-MOF

[0094] 35 mg of organic ligand L and 42 mg of CuI were respectively dissolved in 12 mL of acetonitrile, and the two were mixed uniformly, and allowed to stand for 15 hours at 10° C. to obtain 55 mg of metal organic framework CuI-MOF with a yield of 78% (based on L).

[0095] 3. I 2 Synthesis of @CuI(Cl)-MOF

[0096] The CuI-MOF crystal prepared in Example 2 was placed in a 50 mL container with a HCl (g) concentration of 150 ppm at 25° C., taken out for 10 minutes, and allowed to stand in the air for 100 minutes to obtai...

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 discloses a Cu(I)-based metal organic framework (MOF), and a preparation method and applications thereof. The Cu(I)-based metal organic framework CuI-MOF is capable of reacting with HCl(g) and O2 in air atmosphere so as to obtain a novel I2-containing metal organic framework I2@CuI(Cl)-MOF with obvious color variation. Reaction of CuI-MOF with HF(g), HBr(g), and HI(g) in gas phase is impossible. Micrometer-scaled micro-CuI-MOF can be taken as a naked eye visible sensor for rapid detection of HCl gas in the air. The micro-CuI-MOF sensor high reaction activity is naked eye visible compared with common organic polymer HCl sensors, and detection limit is lower. The micro-CuI-MOF sensor high reaction activity possesses high selectivity in detection of HCl, and detection accuracy is guaranteed.

Description

Technical field [0001] The invention relates to a Cu(I)-based metal organic framework and a preparation method and application thereof, and belongs to the technical field of sensor preparation. Background technique [0002] Metal-organic Framework (MOF) has been a research hotspot in recent years. Compared with traditional porous materials, MOF has the characteristics of being porous, larger specific surface area and pore volume in the frame. The metal nodes, anions and organic ligands that make up the MOF framework often have obvious photoelectric signals, which make them have specific stress responses to certain external stimuli. As a porous functional material, it has great advantages in sensing applications. [0003] HCl gas is a dangerous gas, which is mainly produced by the complete incineration of chlorinated polymers and released into the environment. The safe concentration of HCl gas exposed to the human body is below 10ppm. When the concentration reaches 35ppm, it will ...

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): C07D413/14C07F1/08C09K11/06G01N21/64
CPCC07D413/14C07F1/005C09K11/06C09K2211/1007C09K2211/1029C09K2211/1048G01N21/643
Inventor 董育斌赵朝委马建平
Owner SHANDONG NORMAL UNIV
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