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A kind of preparation method of high-efficiency catalytic type catalytic pole plate

A catalytic type, plate technology, applied in chemical instruments and methods, water/sludge/sewage treatment, water/sewage treatment, etc., can solve problems such as energy consumption, polluted gas, low production efficiency, etc., and achieve a simple preparation method. , high catalytic efficiency, the effect of reducing energy consumption

Inactive Publication Date: 2020-10-02
HIGH TECH RES INST NANJING UNIV LIANYUNGANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are various kinds of catalytic plates, and the preparation methods are also various, but the general steps are generally prepared by selecting the substrate, preparing the coating solution, immersing the substrate in the coating solution, coating heat treatment, etc., but in the preparation There is a big defect in the process, that is, when the substrate is immersed in the coating solution and then taken out for coating heat treatment, the coating solution will continuously flow down from the substrate, resulting in low adhesion of the coating, which needs to be repeated. Repeated substrate immersion-coating heat treatment steps lead to low production efficiency and energy consumption. Not only that, when the wastewater is catalyzed by the electrode plate, there is often a loud catalytic sound. In addition, the catalytic plate prepared by the traditional method Catalytic efficiency is low, polluting gas is often emitted during catalysis, odor removal and adsorption are not strong

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing a high-efficiency catalytic type catalytic pole plate, the steps are as follows: 1. Pretreatment: first, the titanium substrate is polished, and then dipped in a chemical solution, which may be NaOH solution. 2. Preparation of coating solution: prepare a coating solution containing Sn, Sb, and Ce, the molar concentration ratio of Sn, Sb, and Ce can be controlled at 10:1:3, and the pH value of the coating solution is controlled at 1. 3. Preparation of adsorption liquid: Take activated carbon and nano-alumina and add them to water for mixing and stirring. Control the ratio of activated carbon and nano-alumina to 1:5, and control the weight ratio of the mixture of activated carbon and nano-alumina to water to 1:6. The time for adding nano-alumina to water for mixing and stirring is 30 minutes. Four, prepare preparation liquid: get the powder material of epoxy resin, acetone, nickel foam three and drop into water and stir, form preparation liquid, con...

Embodiment 2

[0028] A method for preparing a high-efficiency catalytic type catalytic pole plate, the steps are as follows: 1. Pretreatment: first, the titanium substrate is polished, and then dipped in a chemical solution, which may be NaOH solution. 2. Preparation of coating solution: Prepare a coating solution containing Sn, Sb, and Ce. The molar concentration ratio of Sn, Sb, and Ce can be controlled at 10:1:3, and the pH value of the coating solution is controlled at 2. 3. Preparation of adsorption liquid: Take activated carbon and nano-alumina and add them to water and mix them. The time for adding nano-alumina to water for mixing and stirring is 35 minutes. Four, prepare preparation liquid: get the powder material of epoxy resin, acetone, nickel foam three and drop into water and stir, form preparation liquid, control each component and the weight part of water in the preparation liquid to be epoxy resin 1.1, acetone 0.9 successively , foamed nickel 2.1, water 6.1, control the mass...

Embodiment 3

[0030]A method for preparing a high-efficiency catalytic type catalytic pole plate, the steps are as follows: 1. Pretreatment: first, the titanium substrate is polished, and then dipped in a chemical solution, which may be NaOH solution. 2. Preparation of coating solution: Prepare a coating solution containing Sn, Sb, and Ce. The molar concentration ratio of Sn, Sb, and Ce can be controlled at 10:1:3, and the pH value of the coating solution is controlled at 3. 3. Preparation of adsorption solution: Take activated carbon and nano-alumina and add them to water for mixing and stirring. Control the ratio of activated carbon and nano-alumina to 1:4, and control the weight ratio of the mixture of activated carbon and nano-alumina to water to 1:6. The time for adding nano-alumina to water for mixing and stirring is 36 minutes. Four, prepare preparation liquid: get the powder material of epoxy resin, acetone, nickel foam three and drop into water and stir, form preparation liquid, co...

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Abstract

The invention discloses a method for preparing an efficient catalytic polar plate. The method comprises the following steps: I, performing pretreatment; II, preparing a coating solution; III, preparing an adsorption solution; IV, preparing a modulation solution; V, preparing a mixed solution; and VI, performing thermal treatment on a coating. As the adsorption solution and the modulation solution are added, the adsorption function and the catalytic efficiency of the coating are improved by mutual coordination between activated carbon and nanometer aluminium oxide, the catalytic environment is optimized, the whole coating solution is endowed with the properties of high viscosity, dispersity, adsorbability and surface energy through mutual coordination among epoxy resin, acetone and nickel foam, the adhesive rate of the coating solution on a substrate is high, the catalytic efficiency is guaranteed, the preparation method is simplified, and energy conservation and emission reduction are achieved.

Description

technical field [0001] The invention relates to the field of wastewater catalysis, in particular to a preparation method of a high-efficiency catalytic type catalytic pole plate. Background technique [0002] At present, in terms of research on high-efficiency electrocatalytic electrodes, since H. Beer developed the DSA electrode, it has rapidly attracted attention because of its good stability and catalytic activity, and has been widely used in many fields, such as Ti-based RuO 2 coating, IrO 2 The coating is used in the chlor-alkali industry, sulfuric acid industry, etc. S.Stucki et al. developed coated SnO 2 -Sb 2 o 5 The titanium-based electrode obtained a higher oxygen evolution potential. B.Correa-Loza found that coating IrO on titanium base 2 , made of SnO 2 -Sb 2 o 5 / IrO 2 / Ti electrode can make its life can be greatly increased. Starting from the perspective of anode materials, Comninells proposed two different direct oxidation pathways, and concluded th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/461C02F101/34
CPCC02F1/46109C02F1/4672C02F2001/46142C02F2101/345
Inventor 徐根华
Owner HIGH TECH RES INST NANJING UNIV LIANYUNGANG