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

Ethylene glycol terephthalate/graphene two-dimensional layered composite film with T-shaped channel structure as well as preparation method and application of ethylene glycol terephthalate/graphene two-dimensional layered composite film

A ethylene terephthalate, two-dimensional layered technology, applied in the field of membrane materials, can solve the problems of low selectivity and poor flexibility of organic submicron porous membranes, and achieves overcoming poor flexibility and easy operation. , the effect of low cost

Active Publication Date: 2022-02-15
SHANGHAI INST OF TECH
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of ethylene terephthalate / graphene two-dimensional layered composite film with T-shaped channel structure and its preparation method and application, to overcome the flexibility of existing two-dimensional layered film material Defects of poor and low selectivity of organic submicron porous membranes

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
  • Ethylene glycol terephthalate/graphene two-dimensional layered composite film with T-shaped channel structure as well as preparation method and application of ethylene glycol terephthalate/graphene two-dimensional layered composite film
  • Ethylene glycol terephthalate/graphene two-dimensional layered composite film with T-shaped channel structure as well as preparation method and application of ethylene glycol terephthalate/graphene two-dimensional layered composite film
  • Ethylene glycol terephthalate/graphene two-dimensional layered composite film with T-shaped channel structure as well as preparation method and application of ethylene glycol terephthalate/graphene two-dimensional layered composite film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Preparation of an ethylene terephthalate / graphene-based two-dimensional layered composite film with a T-shaped channel structure.

[0049] 2.0-4.0 ml of commercialized 2 g / L single-layer graphene nanosheet n-methyl-2-pyrrolidone (NMP) dispersion (Beijing Beike New Material Technology Co., Ltd., single-layer graphene nanosheet size: 0.5 micron-3.0 micron) into a 20 ml centrifuge tube and place it in a high-speed centrifuge, centrifuge at a speed of 5000 rpm for 50 minutes, remove the supernatant containing small-diameter graphene in the centrifuge tube, and then add it to the centrifuge tube After 20 milliliters of isopropanol, ultrasonically disperse for 3 minutes to obtain a graphene nanosheet precursor solution (0.2 g / L) for preparing ethylene terephthalate / graphene two-dimensional layered composite film.

[0050] Take 1.0 ml of 0.2 g / L graphene nanosheet precursor solution, add it dropwise on the porous ethylene terephthalate membrane in the vacuum filtration device,...

Embodiment 2

[0053] A kind of aqueous solution ion sieving of the ethylene terephthalate / graphene-based two-dimensional layered film with T-type channel structure, specifically comprises the steps:

[0054] Weigh a certain amount of potassium chloride (KCl), sodium chloride (NaCl), lithium chloride (LiCl), magnesium chloride (MgCl) 2 ), tetraethylammonium chloride (TEACl) and tetrabutylammonium chloride (TBACl) are added to the volumetric flask, and the volume is adjusted to 50 ml with deionized water, and it is configured into a 0.1 mol / liter aqueous solution, which will have a T-shaped channel The structural ethylene terephthalate / graphene two-dimensional layered composite membrane is placed in a U-shaped ion transport cell, and the same concentration and volume of potassium chloride, sodium chloride, and chloride are added to both sides of the transport cell. Lithium, magnesium chloride, tetraethylammonium chloride and tetrabutylammonium chloride, using a four-electrode system to test t...

Embodiment 3

[0057] A kind of ion transmission and screening on the oil / water interface of the ethylene terephthalate / graphene-based two-dimensional layered film with T-shaped channel structure, specifically comprising the steps of:

[0058] Mix 0.1 mol / liter of potassium chloride, sodium chloride, lithium chloride, magnesium chloride aqueous solution (W) with 0.02 mol / liter of tetrabutylammonium tetraphenylborate 1,2-dichloroethane organic solution (DCE ) in a four-electrode system electrochemical cell to form a polarizable W / DCE interface supported by ethylene terephthalate / graphene two-dimensional layered composite film, using CHI760D electrochemical workstation and cyclic voltammetry (CV) and differential Pulse voltammetry (DPV) and electrochemical measurements of ion transfer on the polarizable W / DCE interface were performed using a four-electrode system. The four-electrode system means that the counter electrode (CE) in the water phase and the oil phase is a platinum wire electrode, ...

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
sizeaaaaaaaaaa
pore sizeaaaaaaaaaa
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to an ethylene glycol terephthalate / graphene two-dimensional layered composite film with a T-shaped channel structure and a preparation method and application of the ethylene glycol terephthalate / graphene two-dimensional layered composite film, wherein the composite film has a two-dimensional layered angstrom channel and a one-dimensional submicron channel, and the two channels are vertically communicated to form the T-shaped channel structure. The preparation method comprises the steps: assembling single-layer graphene nanosheets on the surface of an ethylene glycol terephthalate submicron porous film layer by layer by using a vacuum suction filtration method, and then drying at a certain temperature to remove a solvent in the film; and the T-shaped channel structure which has the two-dimensional layered angstrom channel perpendicular to the one-dimensional submicron channel is obtained, and the ethylene glycol terephthalate / graphene two-dimensional layered composite film with angstrom resolution ion transmission, screening and detection performance is obtained. Compared with the prior art, the preparation method of the composite film is simple, convenient and rapid, and can be applied to ion transmission, screening and detection on an aqueous solution and a polarizable oil / water interface.

Description

technical field [0001] The invention relates to the technical field of membrane materials, in particular to an ethylene terephthalate / graphene two-dimensional layered composite membrane with a T-shaped channel structure and a preparation method and application thereof. Background technique [0002] Membrane separation technology based on the angstrom resolution screening performance of two-dimensional angstrom channels in two-dimensional layered membranes is an interdisciplinary subject developed in recent years that combines membrane science and technology, two-dimensional nanomaterial science, chemistry and separation science. technology. It uses various assembly methods to assemble two-dimensional nanosheets into a two-dimensional layered film with angstrom to nanometer layer spacing. The two-dimensional layered film can transport, sieve or identify. Due to its sieving and identification performance at Angstrom resolution, it has a wide range of application prospects in...

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): C08L67/02C08K3/04C08J9/40B01D69/12B01D69/02B01D67/00B01D71/06
CPCC08J9/40B01D69/12B01D69/02B01D67/0079B01D71/021B01D71/06C08J2367/02C08K3/042C08K2201/011C08K2201/005B01D2325/02
Inventor 陈勇王肖元杨寒寒盛晨曦成汉文
Owner SHANGHAI INST OF TECH
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