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

Preparation method of microporous aluminum-based metal organic framework material with high specific surface area and water stability

A high specific surface area, organic framework technology, applied in the field of adsorption material research and development, can solve problems such as collapse, and achieve the effect of low biological toxicity, maintaining structural stability and rich content

Pending Publication Date: 2022-04-26
ZHEJIANG UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the technical problem that existing metal-organic framework materials are prone to collapse when exposed to water in the actual application process, and provides a high specific surface area and Preparation method of water-stable microporous aluminum-based metal-organic framework 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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of microporous aluminum-based metal organic framework material with high specific surface area and water stability
  • Preparation method of microporous aluminum-based metal organic framework material with high specific surface area and water stability
  • Preparation method of microporous aluminum-based metal organic framework material with high specific surface area and water stability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh 104mg of aluminum nitrate nonahydrate and 300mg of 1,3,5-trimethyl-2,4,6-tris(4-carboxyphenyl)benzene (molar ratio is 0.44:1) and place in 15mL of N, In N-dimethylformamide (DMF) organic solution, 1.4 mL of formic acid was added dropwise, and the reactants were completely dissolved and dispersed evenly after ultrasonication for 30 minutes. The reactants were placed in a reaction kettle and sealed. Set the oven temperature to 130 degrees Celsius, and the reaction time to 72 hours. After the reaction was completed, the reaction kettle was cooled to room temperature, the reaction product and mother liquor were transferred to a centrifuge tube, separated by centrifugation, and the supernatant was poured off to obtain the crude product at the bottom. Then wash with N,N-dimethylformamide and acetone for 3 to 4 times in sequence, and put the washed product into a vacuum drying oven to dry, and finally obtain a high specific surface area and water-stable microporous alum...

Embodiment 2

[0025] Weigh 208mg of aluminum nitrate nonahydrate and 300mg of 1,3,5-trimethyl-2,4,6-tris(4-carboxyphenyl)benzene (molar ratio is 0.88:1) and place in 15mL of N, In N-dimethylformamide (DMF) organic solution, 1.7 mL of formic acid was added dropwise, and ultrasonication was performed for 30 minutes, so that the reactants were completely dissolved and uniformly dispersed. The reactants were placed in a reaction kettle and sealed. Set the oven temperature to 130 degrees Celsius, and the reaction time to 72 hours. After the reaction was completed, the reaction kettle was cooled to room temperature, the reaction product and mother liquor were transferred to a centrifuge tube, separated by centrifugation, and the supernatant was poured off to obtain the crude product at the bottom. Then wash with N,N-dimethylformamide and acetone for 3 to 4 times in sequence, and put the washed product into a vacuum drying oven to dry, and finally obtain a high specific surface area and water-sta...

Embodiment 3

[0027] Weigh 200mg of aluminum nitrate nonahydrate and 69mg of 1,3,5-trimethyl-2,4,6-tris(4-carboxyphenyl)benzene (molar ratio is 0.44:1) and place in 10mL of N, In N-dimethylformamide (DMF) organic solution, 1.0 mL of formic acid was added dropwise, and ultrasonication was performed for 30 minutes, so that the reactants were completely dissolved and uniformly dispersed. The reactants were placed in a reaction kettle and sealed. Set the oven temperature to 130 degrees Celsius, and the reaction time to 72 hours. After the reaction was completed, the reaction kettle was cooled to room temperature, the reaction product and mother liquor were transferred to a centrifuge tube, separated by centrifugation, and the supernatant was poured off to obtain the crude product at the bottom. Then wash with N,N-dimethylformamide and acetone for 3 to 4 times in sequence, and put the washed product into a vacuum drying oven to dry, and finally obtain a high specific surface area and water-stab...

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
Specific surface areaaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention provides a synthetic method of a microporous aluminum-based metal organic framework material with high specific surface area and water stability. The method comprises the following steps: dissolving 5 '-(4-carboxyl phenyl)-2', 4 ', 6'-trimethyl-[1, 1 ': 3', 1 ''-terphenyl]-4, 4''-dicarboxylic acid as an organic ligand and a metal aluminum salt as an aluminum source in an organic solvent according to a molar ratio of 0.2: 1-4: 1, dropwise adding an acidic regulator into a mixed solution, and carrying out ultrasonic treatment for a certain time to dissolve components in the mixed solution; a crude product is prepared through a solution heat method, and the microporous aluminum-based metal organic framework material with the high specific surface area and the water stability is obtained after centrifugation, washing and drying. The microporous metal organic framework material with high specific surface area and water stability prepared by the invention not only has high specific surface area (BET specific surface area is 2344m < 2 > / g), but also can keep the structure stable in water. Besides, the material also has a rich micropore structure (the micropore volume is 0.934 cm < 3 > / g and accounts for 88.5% of the total pore volume), and has potential application value in the aspect of small molecule gas adsorption and separation.

Description

technical field [0001] The invention relates to the field of research and development of adsorption materials, in particular to a method for preparing a high specific surface area and water-stable microporous aluminum-based metal-organic framework material. Background technique [0002] Volatile organic pollutants (Volatile Organic Compounds, VOCs) refer to organic compounds with a saturated vapor pressure greater than 70Pa at normal temperature and a boiling point lower than 260°C at normal pressure. VOCs not only cause near-surface ozone (O 3 ), photochemical smog and PM2.5, and will destroy the high-altitude ozone layer. Trace VOCs also pose carcinogenic, teratogenic, and mutagenic threats to the human body. If the human body is exposed to it for a long time, it will cause sick building syndrome and other diseases. At present, VOCs treatment technologies mainly include absorption, adsorption, condensation concentration, membrane separation, catalysis and other technologi...

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): C08G83/00
CPCC08G83/008Y02A50/20
Inventor 杨坤胡来钢邬文浩
Owner ZHEJIANG UNIV
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com