Preparation method for graphene oxide-NaY zeolite composite membrane

A graphene and composite membrane technology, applied in chemical instruments and methods, membranes, membrane technologies, etc., can solve problems such as poor acid resistance, and achieve the effects of improving separation performance, excellent hydrophilicity, and enhancing acid resistance

Inactive Publication Date: 2019-02-19
HUANGSHAN UNIV
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the prior art, the present invention provides a preparation method of graphene oxide-NaY zeolite composite membrane, which solves the problem of poor acid resistance of the existing traditional NaY zeolite membrane, and the developed graphene oxide-NaY zeolite composite me

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A preparation method of graphene oxide-NaY zeolite composite membrane, comprising the following steps,

[0039] (1) NaY zeolite molecular sieve seed crystals are dispersed in pure water to obtain NaY zeolite molecular sieve seed crystal liquid, the content of NaY zeolite molecular sieve in the NaY zeolite molecular sieve seed liquid is 0.1wt.%, and the particle size is about 500nm;

[0040] (2) Utilize the NaY zeolite molecular sieve seed liquid obtained in the step (1) to introduce the NaY seed layer by impregnation on the surface of the porous matrix material, the porous matrix material is an alumina tubular matrix, and the aperture of the matrix is ​​100nm;

[0041] (3) dissolving alkali source, silicon source and aluminum source in depure water is configured to obtain synthetic solution, and the molar ratio of each component in the described synthetic solution is:

[0042] Silicon source: aluminum source=12.8, alkali source: aluminum source=34, water: silicon source...

Embodiment 2

[0054] A preparation method of graphene oxide-NaY zeolite composite membrane, comprising the following steps,

[0055](1) NaY zeolite molecular sieve seed crystals are dispersed in pure water to obtain NaY zeolite molecular sieve seed crystal liquid, the content of NaY zeolite molecular sieve in the NaY zeolite molecular sieve seed liquid is 0.1wt.%, and the particle size is about 500nm;

[0056] (2) Utilize the NaY zeolite molecular sieve seed liquid obtained in the step (1) to introduce the NaY seed layer by impregnation on the surface of the porous matrix material, the porous matrix material is an alumina tubular matrix, and the aperture of the matrix is ​​100nm;

[0057] (3) dissolving alkali source, silicon source and aluminum source in depure water is configured to obtain synthetic solution, and the molar ratio of each component in the described synthetic solution is:

[0058] Silicon source: aluminum source=12.8, alkali source: aluminum source=34, water: silicon source=...

Embodiment 3

[0070] A preparation method of graphene oxide-NaY zeolite composite membrane, comprising the following steps,

[0071] (1) NaY zeolite molecular sieve seed crystals are dispersed in pure water to obtain NaY zeolite molecular sieve seed crystal liquid, the content of NaY zeolite molecular sieve in the NaY zeolite molecular sieve seed liquid is 0.1wt.%, and the particle size is about 500nm;

[0072] (2) Utilize the NaY zeolite molecular sieve seed liquid obtained in the step (1) to introduce the NaY seed layer by impregnation on the surface of the porous matrix material, the porous matrix material is an alumina tubular matrix, and the aperture of the matrix is ​​100nm;

[0073] (3) dissolving alkali source, silicon source and aluminum source in depure water is configured to obtain synthetic solution, and the molar ratio of each component in the described synthetic solution is:

[0074] Silicon source: aluminum source=12.8, alkali source: aluminum source=34, water: silicon source...

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
Apertureaaaaaaaaaa
Login to view more

Abstract

The invention discloses a preparation method for a graphene oxide-NaY zeolite composite membrane, and relates to the technical field of zeolite membranes. The method comprises the following steps thatan NaY zeolite membrane is prepared; the graphene oxide-NaY zeolite composite membrane is prepared, aqueous dispersion of graphene oxide is prepared, and the graphene oxide is introduced on the surface of the NaY membrane; plasma processing and high-temperature solidification are conducted, and the steps are repeated several times to obtain the graphene oxide-NaY zeolite composite membrane. The prepared graphene oxide-NaY zeolite composite membrane can be applied to alcohol dehydration of ethanol dehydration, isopropanol dehydration and the like, dehydration of 50 wt.% acetic acid and dehydration of organic matters widely. The graphene oxide-NaY zeolite composite membrane prepared by adopting the method can effectively strengthen the acid resistance performance of the NaY zeolite membrane, maintain excellent hydrophilia, and solves the problem that a traditional NaY zeolite membrane is poor in acid resistance performance; on the other hand, the graphene oxide on the surface layer canrepair defects of the NaY zeolite membrane layer and be beneficial for improving the separation performance of the graphene oxide-NaY zeolite composite membrane.

Description

technical field [0001] The invention relates to the technical field of zeolite membranes, in particular to a method for preparing a graphene oxide-NaY zeolite composite membrane. Background technique [0002] Zeolite membranes are generally used as zeolite membrane complexes in which zeolite is formed as a film on a support, and are used for separation and concentration. Through this method, organic compounds can be separated and concentrated. Compared with separation and concentration by distillation or adsorbent, the separation and concentration of organic compounds using zeolite membrane can not only reduce the amount of energy used, but also because it is an inorganic material, it can be compared with polymers. The membrane has a wider temperature range for separation and concentration, and can also be applied to the separation of mixtures containing organic compounds. However, during the preparation or application of zeolite membranes, defects in the membrane layer are...

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): B01D71/02B01D69/12B01D67/00
CPCB01D67/0039B01D69/12B01D71/02B01D2325/36
Inventor 李良清李佳佳李良松
Owner HUANGSHAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap