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A kind of preparation method of photocatalytic thin film foam body for electrocatalytic reaction

A photocatalytic thin film and catalytic reaction technology, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of short service life of photocatalytic materials, and achieve improved corrosion resistance, particle size, etc. Good uniformity and improved aggregation

Active Publication Date: 2020-09-11
绍兴市梓昂新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The combination of electrochemical degradation and photocatalytic technology, in the whole reaction system, photocatalytic reaction and electrocatalytic reaction is the main reaction system, the synergy between the two is the key to improve its degradation efficiency, but in the electrocatalytic reaction At the same time, the whole reaction solution has good electrical conductivity, so the photocatalytic foam also suffers from the problem of electrical corrosion during the reaction, and the photocatalytic material obtained by ordinary impregnation, pulling and sintering has a short service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method for preparing a photocatalytic thin film foam used for electrocatalytic reaction, adopts the thin film material obtained by micro-current catalytic reaction after dipping, pulling and drying in a sol solution, and the specific steps are as follows:

[0039] Step 1, the foam substrate is cleaned and dried;

[0040] Step 2, the foam is dipped into the photocatalytic sol solution, then pulled at a constant speed, and spray-dried with hot air until completely dried, repeated 10 times;

[0041] Step 3, soaking the coated foam into an electrocatalytic device for catalytic film-forming reaction;

[0042] In step 4, the foamed body after film formation is rinsed by microfluidic water with an alcohol solution, and dried to obtain a photocatalytic thin film foamed body with resistance to electric corrosion.

[0043] Preferably, the foam is made of an inorganic ceramic foam material, including alumina or silicon carbide, the pore of the foam is 2ppi, and the cleaning metho...

Embodiment 2

[0054] A method for preparing a photocatalytic thin film foam used for electrocatalytic reaction, adopts the thin film material obtained by micro-current catalytic reaction after dipping, pulling and drying in a sol solution, and the specific steps are as follows:

[0055] Step 1, the foam substrate is cleaned and dried;

[0056] Step 2, the foam is dipped in the photocatalytic sol solution, then pulled at a constant speed, and spray-dried with hot air until completely dried, repeated 15 times;

[0057] Step 3, soaking the coated foam into an electrocatalytic device for catalytic film-forming reaction;

[0058] In step 4, the foamed body after film formation is rinsed by microfluidic water with an alcohol solution, and dried to obtain a photocatalytic thin film foamed body with resistance to electric corrosion.

[0059] Preferably, the foam is made of an inorganic ceramic foam material, including alumina or silicon carbide, the pore of the foam is 30ppi, and the cleaning meth...

Embodiment 3

[0070] A method for preparing a photocatalytic thin film foam used for electrocatalytic reaction, adopts the thin film material obtained by micro-current catalytic reaction after dipping, pulling and drying in a sol solution, and the specific steps are as follows:

[0071] Step 1, the foam substrate is cleaned and dried;

[0072] Step 2, the foam is dipped into the photocatalytic sol solution, then pulled at a constant speed, and spray-dried with hot air until completely dried, repeated 14 times;

[0073] Step 3, soaking the coated foam into an electrocatalytic device for catalytic film-forming reaction;

[0074] In step 4, the foamed body after film formation is microfluidically washed with absolute ethanol, and dried to obtain a photocatalytic thin film foamed body with resistance to electric corrosion.

[0075] Preferably, the foam is made of an inorganic ceramic foam material, including alumina or silicon carbide, the pore of the foam is 20ppi, and the cleaning method of ...

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Abstract

The invention discloses a method for preparing a photocatalytic film foam for electrocatalytic reaction. A photocatalytic film is formed on the surface of the foam by dipping and pulling, and then the photocatalytic film is processed under the voltage and current conditions of the electrocatalytic device. The organic matter in the film is degraded and decomposed to form a stable film material. At the same time, the degradation removes the easy-to-shed chemical bonds on the surface, reducing the generation of impurities and reducing the impurity pollution caused by the electrical corrosion process.

Description

technical field [0001] The invention belongs to the technical field of photocatalytic film materials, and in particular relates to a preparation method of a photocatalytic film foam for electrocatalytic reaction. Background technique [0002] With the development of science and technology in my country in recent years, and the strengthening of supervision and testing of various production and products, various R&D laboratories and testing laboratories have sprung up, resulting in various laboratory wastewater. surge. Laboratory wastewater is mainly produced in the process of various research and development experiments, inspection and testing. Due to its own special properties, such as low discharge, strong intermittent, high toxicity and high hazard, and complex and changeable components, the treatment of laboratory wastewater is extremely difficult. difficulty. The current reality is that many laboratory wastewaters are directly discharged without treatment, becoming a se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J21/06B01J27/224B01J37/00B01J37/02B01J37/06
CPCB01J21/063B01J27/224B01J37/00B01J37/0234B01J37/06B01J35/39
Inventor 朱嘉文
Owner 绍兴市梓昂新材料有限公司
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