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

Preparation and application of copper-cobalt/carbon catalyst derived from metal organic framework material

A catalyst, copper-cobalt technology, applied in the field of preparation of copper-cobalt/carbon catalysts, can solve the problems of plant/algae physiological abnormalities, limited CIP degradation efficiency, genotoxicity and carcinogenicity, etc., to promote highly uniform distribution, prevent aggregation, The effect of promoting transfer

Pending Publication Date: 2021-11-30
HUNAN UNIV
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that even if the concentration of CIP in aqueous solution is very low, it will still induce organisms to develop resistance to antibiotics and eventually cause harm to human health
CIP entering the water environment can also cause physiological abnormalities in plants / algae, as well as genotoxicity and carcinogenicity to organisms
Traditional treatment methods such as physical (adsorption) and chemical (precipitation, flocculation) methods have very limited degradation efficiency for CIP, and by-products may be produced during the treatment process, causing secondary pollution

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
  • Preparation and application of copper-cobalt/carbon catalyst derived from metal organic framework material
  • Preparation and application of copper-cobalt/carbon catalyst derived from metal organic framework material
  • Preparation and application of copper-cobalt/carbon catalyst derived from metal organic framework material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of synthetic method of CuCo / C catalyst of the present invention, comprises the following steps:

[0036] (1) 6mmol of cobalt nitrate (Co(NO 3 ) 2 .6H 2 O), 6mmol of copper nitrate (Cu(NO 3 ) 2 .3H 2 O) and 12mmol of terephthalic acid (H 2 BDC) was added to a beaker containing 60mL N,N-dimethylformamide (DMF), and stirred at room temperature for 20-30min;

[0037] (2) After the stirring is completed, transfer the mixed solution to a 100mL polytetrafluoroethylene-lined stainless steel autoclave, and add 0.8mL of hydrofluoric acid;

[0038] (3) Transfer the polytetrafluoroethylene-lined stainless steel autoclave with the uniform mixed solution to an oven, heat at 150°C for 72h, and naturally cool to room temperature after the reaction is completed;

[0039] (4) The solid product was washed twice with DMF, ethanol and water, and dried under vacuum at 70 °C for 12 h to collect Cu@Co-MOF.

[0040] (5) Pack the solid collected in (4) into a ceramic boat, put it ...

experiment example 1

[0049] The Cu@Co-MOF of embodiment 1, CuCo / C and the Co / C of comparative example 1 are carried out XRD analysis, the result is as follows figure 1 shown.

[0050] figure 1 They are the XRD diffraction patterns of Cu@Co-MOF, CuCo / C of Example 1 of the present invention and Co / C of Comparative Example 1, respectively. Such as figure 1 As shown, the indices (200), (220), and (440) corresponding to the diffraction peaks at 43.4°, 50.4°, and 74.1° of the X-ray diffraction pattern of Cu@Co-MOF represent zero-valent copper, indicating that Cu in the solution 2+ Most of it is converted to zero-valent copper. The above results indicated that Cu@Co-MOF was successfully prepared. The XRD patterns of carbonized CuCo / C and Co / C are as follows figure 1 shown. At 26°, there is a weak peak on the (0 02) plane of graphitic carbon, which indicates that the organic ligands of Co-MOF form the carbon matrix through pyrolysis. The diffraction peaks of CuCo / C and Co / C are located at 44.5°, 51...

experiment example 2

[0052] The Cu@Co-MOF and CuCo / C of Example 1 were analyzed by SEM and TEM. image 3 SEM and TEM electron microscope analysis of Cu@Co-MOF and CuCo / C in Example 1 for the present invention. It can be seen from the figure that SEM shows that Cu@Co-MOF has a spherical structure with a relatively smooth surface. In addition, from the TEM of Cu@Co-MOF, there are small particles dispersed on the surface of Co-MOFs, and these particles on the surface are copper, which indicates that copper was successfully incorporated into Cu@Co-MOF. The SEM image of CuCo / C, obviously, the shape of the precursor is not destroyed, and spherical metal particles are formed, and the surface of the CuCo / C structure is somewhat rough. In addition, the TEM images further confirmed that the nanoparticles have a polyhedral structure, and the Cu / Co nanoparticles are uniformly distributed on the porous carbon.

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
Saturation magnetizationaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-efficiency and easy-to-recover copper cobalt / carbon catalyst which is synthesized by taking Cu (at) Co-MOF as a precursor through a one-step carbonization method. The carbon-based material derived from the MOFs organic ligand not only can prevent aggregation of copper / cobalt nanoparticles and promote highly uniform distribution of active metal, but also can promote transfer of electrons to potassium hydrogen persulfate (PMS) through conductivity, and the copper / cobalt nanoparticles in the catalyst can act together to promote improvement of catalytic efficiency. The prepared copper-cobalt / carbon catalyst has a degradation rate of 90% on ciprofloxacin (CIP), a CIP removal rate of 85% or more after four cycles, and the catalyst is easy to separate from a solution through a magnet, and has good stability and reusability.

Description

technical field [0001] The invention belongs to the technical field of advanced oxidation, and mainly relates to the preparation and application of a copper-cobalt / carbon catalyst derived from a metal-organic framework material. Background technique [0002] As a fluoroquinolone antibiotic (FQs), ciprofloxacin (CIP) is widely used in the prevention and treatment of bacterial infectious diseases due to its broad-spectrum antibacterial activity. However, due to overuse and weak biodegradability, we can often detect CIP pollutants in aquatic environments. Studies have shown that even if the concentration of CIP in aqueous solution is very low, it will still induce organisms to develop resistance to antibiotics and eventually cause harm to human health. CIP entering the water environment can also cause physiological abnormalities in plants / algae, as well as produce genotoxicity and carcinogenicity to organisms. Traditional treatment methods such as physical (adsorption) and ch...

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
IPC IPC(8): B01J23/75B01J37/08B01J37/10B82Y30/00B82Y40/00C02F1/72C02F1/30C02F101/30
CPCB01J23/75B01J37/086B01J37/10C02F1/725C02F1/30C02F2101/30C02F2101/34C02F2101/36C02F2101/38C02F2305/10B01J35/394B01J35/39B01J35/23
Inventor 牛承岗陈明明
Owner HUNAN 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