Graphdiyne composite filtering membrane as well as preparation method and application thereof

A composite filtration and graphdiyne technology, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve the problems of low loading rate, improper arrangement, poor distributability, etc., and achieve low energy consumption and simple operation. Effect
CN112999891AActive Publication Date: 2021-06-22SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
Publication Date
2021-06-22

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Abstract

The invention belongs to the technical field of material preparation, and particularly relates to a graphdiyne composite filtering membrane as well as a preparation method and application thereof. According to the preparation method of the graphdiyne composite filtering membrane, the graphdiyne composite filtering membrane is obtained by carrying out coupling reaction on a polyyne compound and a porous material of which the surface contains copper in a solvent. The graphdiyne composite filter membrane obtained by the invention can selectively filter water molecules, potassium ions, sodium ions, magnesium ions, calcium ions, chloride ions and sulfate ions in seawater, that is, the water molecules are allowed to pass through but the potassium ions, the sodium ions, the magnesium ions, the calcium ions, the chloride ions and the sulfate ions are not allowed to pass through. The preparation method of the graphdiyne composite filtering membrane is simple to operate and low in energy consumption, and a hydrophobic graphdiyne layer can be directly grown on the surface of the porous material containing copper on the surface, so that seawater desalination is realized.
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Description

technical field

[0001] The invention belongs to the technical field of material preparation, and in particular relates to a graphdiyne composite filter membrane and a preparation method and application thereof. Background technique

[0002] The shortage of freshwater resources in the world has attracted more and more attention. As a means of freshwater supply, seawater desalination has become an important method to solve the water crisis. Common seawater desalination technologies are mainly divided into two categories: distillation and membrane separation. Distillation requires high energy consumption, while membrane separation requires low energy consumption, low investment, high salt rejection and high fresh water flux. Most desalination processes employ reverse osmosis, membrane distillation and forward osmosis with the potential to combine renewable energy sources, which have also attracted considerable attention in recent years. In all membrane separations, improving...

Claims

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