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Membrane electrode for generating ozone water by tap water and preparation method thereof

A membrane electrode and ozone water technology, applied in the field of environmental electrochemistry, can solve the problems of high ozone concentration, low ozone concentration, and high current efficiency, and achieve the effects of high current efficiency, reduction of by-products, and low energy consumption.

Inactive Publication Date: 2021-02-19
东莞市南柏电子科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

At present, the widely used ozone generation technology is high-voltage discharge ozone generation technology. The air pump used in this technology produces large noise, and it is easy to produce toxic nitrogen oxides in the process of preparing ozone, and the concentration of prepared ozone is relatively low.
The electrolytic water-type ozone preparation device has high current efficiency and high ozone concentration. During the electrolysis process, nitrogen oxides will not be produced and will not cause secondary pollution to the environment. However, the existing technology usually requires the use of acidic electrolytes to produce ozone The output is gas, and it is often necessary to pass ozone into water through pipelines to prepare ozone water

Method used

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  • Membrane electrode for generating ozone water by tap water and preparation method thereof

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preparation example Construction

[0039] A method for preparing a membrane electrode utilizing tap water to generate ozone water, comprising the steps of:

[0040] (1) Using boron-carbon diamond heterojunction materials to prepare the anode catalyst layer;

[0041] (2) prepare cation exchange membrane;

[0042] (3) preparing the cathode catalyst layer;

[0043] (4) laminating the anode catalyst layer, the cation exchange membrane and the cathode catalyst layer to obtain a membrane electrode;

[0044] Wherein, the steps (1)-(3) can be carried out simultaneously or in reverse order.

[0045]Further, in the step (1), the preparation method of the anode catalyst layer includes the following steps: decomposing carbon gas and radon gas into carbon, hydrogen atoms and active free radicals at a temperature of 1300-1700 ° C, hydrogen atoms and active radicals The combination of free radicals and carbon matrix first forms a carbide transition layer; carbon atoms deposit diamond nuclei in the carbide transition layer;...

Embodiment 1

[0056] A membrane electrode that utilizes tap water to generate ozone water includes an ion exchange membrane 2, an anode catalyst layer 1 arranged on one side of the ion exchange membrane 2 and a cathode catalyst layer 3 arranged on the other side of the ion exchange membrane 2, the cation The exchange membrane 2 is a porous ceramic-based solid polymer electrolyte membrane.

[0057] The anode catalyst layer 1 is made of boron carbon diamond heterojunction material, and the cathode catalyst layer 3 is made of graphene composite material.

[0058] A method for preparing a membrane electrode as described above, comprising the steps of:

[0059] (1) Using a boron carbon diamond heterojunction material to prepare the anode catalyst layer 1;

[0060] (2) prepare cation exchange membrane 2;

[0061] (3) preparing the cathode catalyst layer 3;

[0062] (4) Pressing the anode catalyst layer 1, the cation exchange membrane 2 and the cathode catalyst layer 3 to obtain a membrane elec...

Embodiment 2

[0074] A membrane electrode that utilizes tap water to generate ozone water includes an ion exchange membrane 2, an anode catalyst layer 1 arranged on one side of the ion exchange membrane 2 and a cathode catalyst layer 3 arranged on the other side of the ion exchange membrane 2, the cation The exchange membrane 2 is a graphite phase C3N4 / PFSA solid electrolyte composite membrane.

[0075] The anode catalyst layer 1 is made of boron carbon diamond heterojunction material, and the cathode catalyst layer 3 is made of graphene composite material.

[0076] A method for preparing a membrane electrode as described above, comprising the steps of:

[0077] (1) Using a boron carbon diamond heterojunction material to prepare the anode catalyst layer 1;

[0078] (2) prepare cation exchange membrane 2;

[0079] (3) preparing the cathode catalyst layer 3;

[0080] (4) Pressing the anode catalyst layer 1, the cation exchange membrane 2 and the cathode catalyst layer 3 to obtain a membran...

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Abstract

The invention relates to the technical field of environmental electrochemistry, in particular to a membrane electrode for generating ozone water by using tap water and a preparation method thereof. The membrane electrode comprises an ion exchange membrane, an anode catalyst layer arranged on one side of the ion exchange membrane and a cathode catalyst layer arranged on the other side of the ion exchange membrane, wherein the cation exchange membrane is a porous ceramic-based solid polymer electrolyte membrane or a graphite-phase C3N4 / PFSA solid electrolyte composite membrane. The method is widely applied to drinking water disinfection, municipal sewage treatment, medical industry disinfection and the like. According to the membrane electrode, only water is needed as a raw material for producing ozone water from tap water, so that the energy consumption is low; an air pump is not needed, and noise generated in use is low; high-purity ozone is generated, no other by-product is generated,no nitrogen oxide is generated, and no secondary pollution is generated to the environment; the membrane electrode can work for a long time, is stable in electrolysis efficiency, and does not need additional oxygen-containing electrolyte.

Description

technical field [0001] The invention relates to the technical field of environmental electrochemistry, in particular to a membrane electrode for generating ozone water by using tap water and a preparation method thereof. Background technique [0002] Ozone can be used to purify air, bleach drinking water, sterilize, treat industrial waste, etc. In practical application, ozone is mainly prepared by dielectric barrier discharge method, electrolysis method and ultraviolet method. At present, the widely used ozone generation technology is high-voltage discharge ozone generation technology. The air pump used in this technology generates a lot of noise, and toxic nitrogen oxides are easily produced during the ozone preparation process, and the concentration of the prepared ozone is relatively low. The electrolytic water-type ozone preparation device has high current efficiency and high ozone concentration. During the electrolysis process, nitrogen oxides will not be produced and ...

Claims

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Application Information

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IPC IPC(8): C25B1/13C25B9/23C25B11/02C25B13/02
CPCC25B1/13C25B11/02C25B13/02
Inventor 廖雨农
Owner 东莞市南柏电子科技有限公司
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