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Electrocatalysis membrane filter device and preparation method of electrocatalysis filtration membrane of device

An electrocatalytic membrane and electrocatalytic technology, applied in the field of composite separation membrane technology, can solve the problems that do not reflect the performance of filtration membrane interception and flux

Inactive Publication Date: 2018-09-18
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this porous membrane is only used as an electrocatalytic anode, and does not reflect the performance of interception and flux as a filter membrane.

Method used

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  • Electrocatalysis membrane filter device and preparation method of electrocatalysis filtration membrane of device
  • Electrocatalysis membrane filter device and preparation method of electrocatalysis filtration membrane of device
  • Electrocatalysis membrane filter device and preparation method of electrocatalysis filtration membrane of device

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Embodiment 1

[0067] image 3 It is a schematic diagram of the practical application of the electrocatalytic membrane filter device of the present invention.

[0068] Such as image 3 As shown, the application of the electrocatalytic membrane filter device includes a DC constant voltage power supply, a conductive stainless steel cathode orifice plate, a conductive stainless steel sheet with a thickness of 0.03mm, a stainless steel support plate, and two rubber rings with radii of 45mm and 35mm respectively. The stainless steel orifice plate is placed in the middle and lower part of the intermediate cavity, and the electrocatalytic filter membrane is placed on the upper surface of the stainless steel support plate. The distance between the electrocatalytic filter membrane and the stainless steel cathode orifice plate is adjustable. The distance from the conductive filter membrane to the stainless steel cathode orifice plate is set to 2cm, and the electrocatalytic filter membrane and the cat...

Embodiment 2

[0079] This example provides a kind of preparation method of the electrocatalytic filtration film of ratio, concrete steps are as follows:

[0080] (1) prepare the compound of thermally reduced graphene oxide and titanium dioxide; Weigh a certain mass of titanium dioxide and a certain volume of graphene oxide solution, control the mass ratio of titanium dioxide and graphene oxide to be 1: 1; add to ethanol and water In the mixed solution, control the ratio of ethanol and water to be 1:1 (or 1:2). Put the mixed solution into an ultrasonic cleaner for ultrasonic dispersion for 2h~3h, take out the mixed solution and stir it with a magnetic stirrer for 1h~2h, transfer the mixed solution into a reaction kettle lined with polytetrafluoroethylene, and put the reaction The kettle was placed in a vacuum oven at 120°C for a heating reaction for 24 hours. After the reaction kettle was cooled, the mixed solution was taken out and stored at room temperature to obtain a thermally reduced gr...

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Abstract

The invention discloses an electrocatalysis membrane filter device and a preparation method of an electrocatalysis filtration membrane of the device. Through the electrocatalysis membrane filter device provided by the invention, the membrane filtration can be coupled with electrocatalysis mechanism and is applied to the degradation of waste water of organic matter and the like. The preparation method of the membrane of the electrocatalysis membrane filter provided by the invention is a preparation method of the electrocatalysis filtration membrane by using thermal reduced graphene oxide carrying titanium dioxide / carbon nano tubes. In practical applications, compared with the prior membrane filtration and electrocatalysis technologies, the electrocatalysis membrane filter device provided bythe invention can remove small-molecule pollutants which are difficult to degrade in water, the energy consumption is low, the efficiency is high, and the device has potential industrial applicationvalue. The electrocatalysis filtration membrane prepared by the preparation method not only can be used to obtain the water flux which is higher than the water flux of the existing graphene oxide or reduced graphene oxide membrane, but also can effectively degrade the organic pollutants with small molecular radius in membrane channels through the combination of the electrocatalysis effect.

Description

technical field [0001] The invention relates to the technical field of composite separation membranes, in particular to a novel electrocatalytic membrane filtration device with a synergistic effect of electrocatalysis and membrane interception and a novel preparation method of an electrocatalytic filtration membrane, which utilizes heat-reduced graphene oxide to carry an electrocatalyst titanium dioxide Blending with carbon nanotubes to prepare an electrocatalytic separation membrane is a membrane separation and electrocatalysis coupling technology that can obtain high water flux and efficient degradation of dye wastewater. Background technique [0002] Nowadays, with the development of industry, the ecological damage caused by water pollution and the shortage of water resources have become a global focus for a long time. Both membrane separation technology and electrocatalysis technology have unique advantages in the application of wastewater treatment and wastewater recycl...

Claims

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Application Information

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IPC IPC(8): B01D61/18B01D61/42B01D67/00B01D69/02B01J31/38C02F1/46C02F1/469C02F1/72C02F101/30
CPCB01D61/18B01D61/42B01D67/0079B01D69/02B01D2325/10B01D2325/26B01J31/38C02F1/46C02F1/469C02F1/725C02F2101/308
Inventor 王文一谢程程朱刘勇山伯晋刘偲妮崔方艳
Owner TIANJIN POLYTECHNIC UNIV