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

Preparation method of metal organic framework polyamide thin-layer nano composite membrane (UiO-66/TFN)

A metal-organic framework and nanocomposite technology, applied in the field of metal-organic frameworks, can solve the problems of unstable reverse osmosis membrane modified coating, complex and harsh modification conditions, and inability to maintain anti-adsorption performance all the time, so as to improve the anti-biological pollution. performance, the effect of improving antioxidant properties

Pending Publication Date: 2021-10-29
深圳市爱玛特科技有限公司
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Due to its good hydrophilicity, polyethylene glycol (PEG) has become the most favorable anti-protein and antibacterial material and is widely used. However, PEG itself is easily oxidized and cannot maintain good anti-pollution performance for a long time
[0005] 2. The reverse osmosis membrane modified coating is not stable, and cannot maintain excellent anti-adsorption performance during long-term operation, and most of the modification conditions are complex and harsh

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 metal organic framework polyamide thin-layer nano composite membrane (UiO-66/TFN)
  • Preparation method of metal organic framework polyamide thin-layer nano composite membrane (UiO-66/TFN)
  • Preparation method of metal organic framework polyamide thin-layer nano composite membrane (UiO-66/TFN)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Figure 1-23 Show the preparation method of the metal-organic framework polyamide thin-layer nanocomposite film (UiO-66 / TFN) of an embodiment of the present invention, the preparation method is as follows:

[0054] Materials: polyamide thin-layer nanocomposite film (TNF); 2-methylimidazole, 2-sulfonic terephthalic acid monosodium salt, ZrCl2 and 1,2,4,5-benzenetetracarboxylic acid; Zn(NO3) 2.6H2O and CrO3; 1,4-dioxane, NaCl, KCl, MgCl2, LiCl analytically pure, concentrated HCl, methanol; ultrapure water, conductivity less than 1.0μs / cm, self-made in the laboratory, MIL-101 nanometer Particles, ZIF-8 nanoparticles.

[0055] Among them, the concentration of 2-methylimidazole is (77.2cm 3 / mol), the concentration of 2-sulfonic acid terephthalic acid monosodium salt is (50.2cm 3 / mol), ZrCl 2 The concentration of Zn(NO 3 ) 2 ·6H 2 The concentration of O is (121.1g / mol), CrO 3 The concentration of is (120.3g / mol); the concentration of 1,4-dioxane is (131.4g / mol), the...

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
electrical resistivityaaaaaaaaaa
thicknessaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a metal organic framework polyamide thin-layer nano composite membrane (UiO-66 / TFN). According to the preparation method, materials comprise a polyamide thin-layer nano composite membrane (TNF), 2-methylimidazole, 2-sulfoterephthalic acid monosodium salt, zirconium dichloride (ZrCl2), 1,2,4,5-benzenetetraboxylic acid, zinc nitrate hexahydrate [Zn(NO3)<2>.6H2O], chromium trioxide (CrO3), 1,4-dioxane, sodium chloride (NaCl), potassium chloride (KCl), magnesium chloride (MgCl2), analytically pure lithium chloride (LiCl), concentrated hydrochloric acid (concentrated HCl), methanol, ultrapure water with the conductivity being less than 1.0 [mu]s / cm, MIL-101 nanoparticles and ZIF-8 nanoparticles, wherein the concentration of the 2-methylimidazole is 77.2 cm<3> / mol. According to the present invention, with the preparation method, the biological pollution resistance of a reverse osmosis membrane can be effectively improved, and the oxidation resistance can be improved, such that the reverse osmosis membrane has the long-term pollution resistance, and can maintain the excellent adsorption resistance all the time.

Description

technical field [0001] The invention belongs to the technical field of metal-organic frameworks, in particular to a preparation method of metal-organic framework polyamide thin-layer nanocomposite films (UiO-66 / TFN). Background technique [0002] Metal-organic frameworks (MOFs) are a kind of inorganic nanoparticles with a regular pore structure developed in recent years. They have shown great application prospects in membrane separation. Among them, the most successful example of MOFs in water treatment is The preparation of polyamide thin-layer composite nanomembrane (TFN), with the addition of MOF inorganic particles in the polyamide layer, can achieve the synergistic optimization of flux and rejection. [0003] However, in the long-term use process, the reverse osmosis membrane is extremely vulnerable to various pollution threats, mainly biological pollution: different materials have different defects: [0004] 1. Polyethylene glycol (PEG) is widely used as the most favo...

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): B01D71/56B01D67/00B01D69/12B01D69/02C02F1/44
CPCB01D71/56B01D67/0002B01D67/0011B01D67/0009B01D69/12B01D69/02C02F1/441B01D2323/08B01D2323/12B01D2325/48B01D2325/30B01D2325/28
Inventor 李文国李定雄
Owner 深圳市爱玛特科技有限公司
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