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FeVO4/TiO2 porous catalyst film layer material for photo-Fenton combined catalysis and preparation method of FeVO4/TiO2 porous catalyst film layer material

A technology of porous catalyst and membrane layer is applied in the field of photo-Fenton joint catalytic material preparation to achieve the effect of low cost and industrialized production

Active Publication Date: 2019-12-31
哈尔滨规格科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, until now, it has been a challenge to develop and prepare catalysts that can efficiently combine these two technologies.

Method used

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  • FeVO4/TiO2 porous catalyst film layer material for photo-Fenton combined catalysis and preparation method of FeVO4/TiO2 porous catalyst film layer material
  • FeVO4/TiO2 porous catalyst film layer material for photo-Fenton combined catalysis and preparation method of FeVO4/TiO2 porous catalyst film layer material
  • FeVO4/TiO2 porous catalyst film layer material for photo-Fenton combined catalysis and preparation method of FeVO4/TiO2 porous catalyst film layer material

Examples

Experimental program
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Effect test

Embodiment 1

[0040] In this example, a kind of FeVO prepared by micro-arc oxidation technology for photo-Fenton combined catalytic degradation reaction 4 / TiO 2 The method for porous catalyst membrane layer material, comprises the steps:

[0041] S1, put 2cm 2 The pure titanium sample was treated with acid solution to remove oil and scale, and then ultrasonically cleaned in deionized water for 10 minutes;

[0042] S2, the pure titanium sample is connected to the positive pole of the bidirectional pulse power supply and fixed at the anode position of the electrolytic cell, and the stainless steel electrolytic cell is connected to the negative pole of the power supply as the cathode, containing sodium phosphate, sodium vanadate, potassium ferricyanate and hydrogen The solution of potassium oxide is the electrolyte solution, which is subjected to micro-arc oxidation treatment under stirring conditions; the configuration plan of the electrolyte solution is to dissolve 6g sodium dihydrogen ph...

Embodiment 2

[0048] S1, put 2cm 2 The pure titanium sample was treated with acid solution to remove oil and scale, and then ultrasonically cleaned in ethanol and deionized water for 10 minutes;

[0049] S2, using a bidirectional pulse power supply, using a pure titanium sample as an anode, and a stainless steel electrolytic cell as a cathode, firstly perform the first step of micro-arc oxidation in an electrolyte containing sodium phosphate, sodium vanadate, and potassium hydroxide under stirring conditions deal with. The configuration of the A electrolyte is to dissolve 6g of sodium dihydrogen phosphate, 2g of sodium vanadate, and 4g of potassium hydroxide in 1000mL of deionized water to obtain a clarified electrolyte. The power supply mode used in the first step of the micro-arc oxidation process is a constant voltage mode, and the treatment time is 30 minutes under a constant forward voltage of 350V. After the reaction is completed, the titanium sheet is taken out, cleaned with deioniz...

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Abstract

The invention discloses a FeVO4 / TiO2 porous catalyst film layer material for photo-Fenton combined catalysis and a preparation method of the FeVO4 / TiO2 porous catalyst film layer material, belongs tothe technical field of photo-Fenton combined catalytic material preparation. Aiming at the lack of a method and a catalyst capable of efficiently combining photocatalysis and Fenton reaction at present, a micro-arc oxidation method is utilized; a TiO2 film layer containing Fe and V is generated on the surface of a titanium substrate, then the FeVO4 / TiO2 porous catalyst film layer material is obtained through roasting in a protective atmosphere, photocatalysis and Fenton reaction are successfully and efficiently combined together, and the efficient catalyst capable of being used for degrading organic pollutants is obtained.

Description

technical field [0001] The invention belongs to the technical field of photo-Fenton (Fenton) combined catalytic material preparation, in particular to a kind of TiO 2 Porous Ceramic Coating Supported FeVO 4 Nanoparticle heterojunction photo-Fenton combined catalytic film material and its preparation method. Background technique [0002] The rapid development of science and technology and the advancement of industrialization have brought rich and colorful life to human beings. At the same time, they have also brought huge environmental pressure, especially for the water resources that human beings depend on. The damage is even irreversible, even if the cost is huge Manpower and material resources also take several generations or can be recovered. The deadliest form of water pollution is industrial wastewater. The wastewater discharged from industrial production contains a large amount of organic pollutants with strong toxicity, high stability and refractory biodegradation....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/847B01J35/00B01J35/02C02F1/30C02F1/72C25D11/26C02F101/34C02F101/30
CPCB01J23/8472C25D11/026C25D11/26C02F1/30C02F1/722C02F1/725C02F2305/10C02F2305/026C02F2101/308C02F2101/345B01J35/393B01J35/39B01J35/00B01J35/30
Inventor 王海瑞聂平赵翠梅薛向欣高爽徐天昊常立民
Owner 哈尔滨规格科技有限公司
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