A kind of preparation method of hydrophilic conductive polymer ultrafiltration membrane

A conductive polymer, ultrafiltration membrane technology, applied in chemical instruments and methods, membrane, membrane technology and other directions, can solve the problems of by-products, secondary pollution of the system, etc., to improve the recycling performance, oil-water separation performance and efficiency. The effect of high quantity, excellent conductivity and hydrophilicity

Active Publication Date: 2022-07-15
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the chemical method requires the addition of chemicals. Different colloid systems require different chemicals and produce by-products, which may cause secondary pollution to the system.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Step 1. Select 316L stainless steel wire mesh, soak it in NaOH solution, use a water bath at 80°C to remove surface grease, take out the immersed stainless steel wire mesh, and rinse it with ultrapure water; the wire diameter of the 316L stainless steel wire mesh is 6-10 μm, The volume fraction of the NaOH solution was 10%, the water bath time was 1 h, and the ultrapure water was rinsed 3 times.

[0036] Step 2. Take out the stainless steel mesh in step 1 and place it in H 2 O 2 In the solution, the surface is activated with a water bath at a temperature of 80 °C to make it conducive to the electrochemical polymerization reaction, and then rinsed with ultrapure water after taking it out; to prepare the electroplating solution, a sulfuric acid solution is prepared first, and then a pyrrole solution is added to the sulfuric acid solution to prepare sulfuric acid and sulfuric acid. Mixed solution of pyrrole; H 2 O 2 The volume fraction of the solution was 2%, the water ...

Embodiment 2

[0042] Step 1. Select 316L stainless steel wire mesh, soak it in NaOH solution, use a water bath at 80°C to remove surface grease, take out the immersed stainless steel mesh, and rinse it with ultrapure water; the wire diameter of the 316L stainless steel wire mesh is 7 μm, and the NaOH solution The volume fraction is 12%, the water bath time is 1.2h, and the ultrapure water rinse is 4 times.

[0043] Step 2. Take out the stainless steel mesh in step 1 and place it in H 2 O 2 In the solution, the surface is activated with a water bath at a temperature of 80 °C to make it conducive to the electrochemical polymerization reaction, and then rinsed with ultrapure water after taking it out; to prepare the electroplating solution, a sulfuric acid solution is prepared first, and then a pyrrole solution is added to the sulfuric acid solution to prepare sulfuric acid and sulfuric acid. Mixed solution of pyrrole; H 2 O 2The volume fraction of the solution was 2.2%, the water bath time...

Embodiment 3

[0049] Step 1. Select 316L stainless steel wire mesh, soak it in NaOH solution, use a water bath at 80°C to remove surface grease, take out the immersed stainless steel mesh, and rinse it with ultrapure water; the wire diameter of the 316L stainless steel wire mesh is 9 μm, NaOH solution The volume fraction is 13%, the water bath time is 2h, and the ultrapure water rinse is 3 times.

[0050] Step 2. Take out the stainless steel mesh in step 1 and place it in H 2 O 2 In the solution, the surface is activated with a water bath at a temperature of 80 °C to make it conducive to the electrochemical polymerization reaction, and then rinsed with ultrapure water after taking it out; to prepare the electroplating solution, a sulfuric acid solution is prepared first, and then a pyrrole solution is added to the sulfuric acid solution to prepare sulfuric acid and sulfuric acid. Mixed solution of pyrrole; H 2 O 2 The volume fraction of the solution was 2.3%, the water bath time was 1 h,...

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Abstract

The invention discloses a preparation method of a hydrophilic conductive polymer ultrafiltration membrane, which is specifically implemented according to the following steps: selecting a 316L stainless steel wire mesh, immersing it in a NaOH solution, taking a water bath at 80°C, taking out the immersed stainless steel mesh, using an ultrafiltration Rinse with pure water; place the stainless steel mesh in H 2 O 2 In the solution, take a water bath at 80 °C, rinse with ultrapure water after taking it out; configure a sulfuric acid solution, add pyrrole solution to the sulfuric acid solution, prepare a mixed solution of sulfuric acid and pyrrole, use the mixed solution of sulfuric acid and pyrrole and stainless steel mesh, with platinum The electrode is the counter electrode, the 218AgCl reference electrode, the stainless steel wire mesh is the working electrode, and the three-electrode system of cyclic voltammetry is used for electroplating; the membrane is rinsed in deionized water; the NaCl solution is configured in the graphene oxide solution, and the graphene oxide solution is used. , using the cyclic voltammetry three-electrode system to prepare for secondary electroplating. The membrane was rinsed in deionized water to obtain a hydrophilic conductive polymer ultrafiltration membrane with a rough structure. It has the characteristics of oil-water separation performance and high flux.

Description

technical field [0001] The invention belongs to the technical field of oil-water separation, and relates to a preparation method of a hydrophilic conductive polymer ultrafiltration membrane. Background technique [0002] Oily wastewater has high chemical oxygen demand (COD) and biochemical oxygen demand (BOD), and has a certain odor and color; it is insoluble in water, easily polluting water, atmosphere, soil and even destroying natural landscapes. Therefore, it is necessary to effectively treat oily wastewater to avoid irreparable harm to the environment and ecology. [0003] At present, according to the different mechanisms of separation methods, common oily wastewater treatment methods include physical methods, chemical methods, and biological methods. However, gravity sedimentation and centrifugal separation methods have limited effects on the treatment of emulsions. Generally, the polymerization rate of oily wastewater is extremely slow or even impossible to polymerize...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D69/02B01D67/00C02F1/44
CPCB01D69/02B01D67/0002C02F1/444B01D2325/36B01D2325/26
Inventor 张耀中梁娜郑杨李晓良曹昕郑兴
Owner XIAN UNIV OF TECH
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