Preparation method of ammonolysis oxidized graphene-based 3D (Three-dimensional) nanoparticle modified organic separation membrane

A nanoparticle modification, graphene-based technology, applied in the field of membrane separation, can solve the problems of easy agglomeration of inorganic nanoparticles, uneven film formation, and poor particle dispersion effect.

CN106582299AActive Publication Date: 2017-04-26XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

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Patent Information

Authority / Receiving Office: CN · China
Current Assignee / Owner: XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
Publication Date: 2017-04-26

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Abstract

The invention discloses a preparation method of an ammonolysis oxidized graphene-based 3D (Three-dimensional) nanoparticle modified organic separation membrane. The preparation method of the ammonolysis oxidized graphene-based 3D nanoparticle modified organic separation membrane comprises the steps of preparing oxidized graphene-based 3D nanoparticles; preparing ammonolysis oxidized graphene-based 3D nanoparticles; adopting a polymer ultrafiltration membrane as a basement membrane, and dispersing the oxidized graphene-based 3D nanoparticles into a polyamine aqueous phase solution and a multiple acyl chloride oil phase solution; soaking, solidifying, rinsing and air drying to obtain the oxidized graphene-based 3D nanoparticle modified organic separation membrane. By adding the oxidized graphene-based 3D nanoparticles into a nanofiltration membrane separation layer, so that the hydrophilia, the permeability and the retention characteristic of the separation membrane are well improved. The novel ammonolysis oxidized graphene-based 3D nanoparticle modified organic separation membrane can be widely applied in various fields of environment, biology, medicine, food and the like.

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Description

technical field

[0001] The invention belongs to the technical field of membrane separation, and relates to a method for preparing an ammoniated graphene oxide-based 3D nanoparticle-modified organic separation membrane. Background technique

[0002] Membrane separation technology is gradually playing an increasingly important role in all aspects of modern society. Membrane separation technology refers to the use of selectively permeable membranes as the separation medium. When there is a certain driving force on both sides of the membrane, the components on the raw material side Selectively permeate the membrane to achieve the purpose of separation and purification. Membrane separation technology mainly includes microfiltration, ultrafiltration, nanofiltration, reverse osmosis, forward osmosis, liquid membrane separation, gas membrane separation, electrodialysis, etc.

[0003] The reverse osmosis membrane (Reverse Osmosis, referred to as RO) can use the static pressure diffe...

Claims

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