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A kind of graphene-polyaniline conductive filter membrane and preparation method thereof

A polyaniline and graphene technology, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve the problems of weak bonding of conductive filter membranes and weak conductivity.

Active Publication Date: 2021-04-06
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the existing conductive filter membranes usually have the defects of weak bonding and weak conductivity.

Method used

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  • A kind of graphene-polyaniline conductive filter membrane and preparation method thereof
  • A kind of graphene-polyaniline conductive filter membrane and preparation method thereof
  • A kind of graphene-polyaniline conductive filter membrane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method for a graphene-polyaniline conductive filter membrane, comprising the steps of:

[0030] Using a DC power supply device, place the graphite sheet on the anode of the power supply, the same size as 5.44 × 10 -3 The S / cm polyaniline conductive filter membrane is completely soaked in 200ml (0.1mol / L) sulfuric acid solution electrolyte for 5 minutes and then placed on the cathode of the power supply. Place the graphite sheet and the polyaniline conductive filter membrane vertically in the electrolyte, and adjust the distance between the cathode and anode of the power supply. 1.5cm, after adjusting the 13V power supply voltage, the graphene is peeled off from the graphite sheet by 1h electrochemical one-step method, and deposited on the polyaniline conductive filter membrane by electrophoresis to obtain a graphene-polyaniline conductive filter membrane, ensuring that the graphene-polyaniline Conductive stability of conductive filter membranes.

Embodiment 2

[0032] A preparation method for a graphene-polyaniline conductive filter membrane, comprising the steps of:

[0033] Using a DC power supply device, place the graphite sheet on the anode of the power supply, the same size as 9.87 × 10 -3 The S / cm polyaniline conductive filter membrane is completely soaked in 200ml (0.1mol / L) potassium sulfate solution electrolyte for 10 minutes and then placed on the cathode of the power supply. Place the graphite sheet and the polyaniline conductive filter membrane vertically in the electrolyte, and adjust the cathode and anode of the power supply. The spacing is 2cm, and after adjusting the 9V power supply voltage, the graphene is peeled off from the graphite sheet by 2h electrochemical one-step method, and deposited on the polyaniline conductive filter membrane by electrophoresis to obtain a graphene-polyaniline conductive filter membrane, ensuring that the graphene-polyaniline Conductive stability of conductive filter membranes.

Embodiment 3

[0035] A preparation method for a graphene-polyaniline conductive filter membrane, comprising the steps of:

[0036] Using a DC power supply unit, place the graphite sheet on the anode of the power supply, the same size as 9.70 × 10 -3 The S / cm polyaniline conductive filter membrane is completely soaked in 200ml (0.1mol / L) ammonium sulfate solution and 10ml ammonia water mixed solution electrolyte for 5 minutes, then placed on the cathode of the power supply, and the graphite sheet and the polyaniline conductive filter membrane are vertically placed in the electrolyte solution. Adjust the distance between the cathode and anode of the power supply by 1cm, and after adjusting the power supply voltage of 11V, the graphene is stripped from the graphite sheet by a 5h electrochemical one-step method, and deposited on the polyaniline conductive filter membrane by electrophoresis to obtain a graphene-polyaniline conductive filter membrane. Conductive stability of graphene-polyaniline ...

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PUM

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Abstract

The invention provides a preparation method of a graphene-polyaniline conductive filter membrane, the steps are as follows: use a DC power supply device, place the graphite sheet on the anode of the power supply, and immerse the polyaniline conductive filter membrane of the same size as the graphite sheet in the electrolyte After 5-10min, put it on the cathode of the power supply, place the graphite sheet and the polyaniline conductive filter membrane vertically in the electrolyte, adjust the distance between the cathode and anode of the power supply, and adjust the power supply voltage. peeled off, and deposited on the polyaniline conductive filter membrane by electrophoresis to obtain a graphene-polyaniline conductive filter membrane; the present invention not only utilizes electrochemical anodic oxidation and cathodic reduction, but also utilizes the conductivity of the polyaniline filter membrane to prepare The conductive filter membrane with better conductivity and more suitable pore size structure has two functions of electrode cathode and separation membrane, with better conductivity and stronger anti-pollution performance.

Description

technical field [0001] The invention relates to the technical field of conductive filter membranes, in particular to a method for preparing a graphene-polyaniline conductive filter membrane. Background technique [0002] Conductive composite materials are currently widely used. The main conductive composite material refers to the composite conductive polymer material composed of polymers and various conductive substances in different ways. Conductive filter membrane is a special membrane material among conductive composite materials, which has dual properties of conductivity and separation. Compared with non-conductive filter membrane, conductive filter membrane has better performance and lower fouling potential. [0003] After the general conductive polymer material membrane is prepared into a membrane, the performance of the membrane (membrane pore size, membrane structure, membrane anti-fouling ability) is difficult to be adjusted by external means. Polyaniline is a cry...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/00C08J7/06C08L79/02B01D67/00B01D71/60B01D71/02
CPCB01D67/0079B01D71/021B01D71/60C08J7/00C08J7/06C08J2379/02
Inventor 孙德李驳骏段士元李冰冰于晶彤董欣然
Owner CHANGCHUN UNIV OF TECH