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Preparation method of copper mesh integrated Cu2O@FeO nano array

A nano-array and copper mesh technology, applied in the field of photocatalysts, can solve the problems of poor stability of photocatalysts, and achieve the effects of abundant reserves, convenient and simple product processing, and mild preparation conditions

Pending Publication Date: 2021-12-10
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, the accumulation of photocarriers in the photocatalytic process of cuprous oxide will lead to the self-redox reaction of cuprous oxide, that is, the photocorrosion effect, resulting in poor photocatalytic stability of cuprous oxide.

Method used

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  • Preparation method of copper mesh integrated Cu2O@FeO nano array
  • Preparation method of copper mesh integrated Cu2O@FeO nano array
  • Preparation method of copper mesh integrated Cu2O@FeO nano array

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] (1) In situ preparation of Cu(OH) on copper mesh substrate 2

[0076] In the first step, prepare 1mol / L, 2mol / L, 2.5mol / L and 3mol / L sodium hydroxide solutions respectively, dissolve 0.54g of ammonium persulfate in 20mL of sodium hydroxide solution, and sonicate for 20 minutes;

[0077] In the second step, the copper mesh treated with 1mol / L hydrochloric acid ultrasonic treatment was added to the solution prepared in the first step, and left to stand for 40 minutes, and the surface of the copper mesh was observed to appear dark blue;

[0078] In the third step, the copper mesh was taken out and washed repeatedly with deionized water to remove impurities, and then the product was dried in a vacuum oven at 60°C for 24 hours, and then sealed and stored in an inert atmosphere after taking it out.

[0079] (2) In situ preparation of Cu(OH) on copper mesh substrate 2 @Fe(OH) 3 Precursor

[0080] In the first step, Cu(OH) was prepared in situ on the copper mesh substrate p...

Embodiment 2

[0090] (1) In situ preparation of Cu(OH) on copper mesh substrate 2

[0091] The first step is to prepare 2.5mol / L sodium hydroxide solution, dissolve 0.54g ammonium persulfate in 20mL sodium hydroxide solution, and ultrasonicate for 20min;

[0092] In the second step, the copper mesh treated with 1mol / L hydrochloric acid ultrasonic treatment was added to the solution prepared in the first step, and left to stand for 40 minutes, and the surface of the copper mesh was observed to appear dark blue;

[0093] In the third step, the copper mesh was taken out and washed repeatedly with deionized water to remove impurities, and then the product was dried in a vacuum oven at 60°C for 24 hours, and then sealed and stored in an inert atmosphere after taking it out.

[0094] (2) In situ preparation of Cu(OH) on copper mesh substrate 2 @Fe(OH) 3 Precursor

[0095] In the first step, Cu(OH) was prepared in situ on the copper mesh substrate prepared above. 2Place in pre-prepared 0.5mmo...

Embodiment 3

[0105] (1) In situ preparation of Cu(OH) on copper mesh substrate 2

[0106] The first step is to prepare 2.5mol / L sodium hydroxide solution respectively, dissolve 0.54g ammonium persulfate in 20mL sodium hydroxide solution, and ultrasonicate for 20min;

[0107] In the second step, the copper mesh treated with 1mol / L hydrochloric acid ultrasonic treatment was added to the solution prepared in the first step, and left to stand for 40 minutes, and the surface of the copper mesh was observed to appear dark blue;

[0108] In the third step, the copper mesh was taken out and washed repeatedly with deionized water to remove impurities, and then the product was dried in a vacuum oven at 60°C for 24 hours, and then sealed and stored in an inert atmosphere after taking it out.

[0109] (2) In situ preparation of Cu(OH) on copper mesh substrate 2 @Fe(OH) 3 Precursor

[0110] In the first step, Cu(OH) was prepared in situ on the copper mesh substrate prepared above. 2 Place in pre-p...

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Abstract

The invention belongs to the field of photocatalytic degradation and thallus inactivation, and provides a preparation method of a copper mesh integrated Cu2O@FeO nano array. The preparation method comprises the following steps: taking a copper mesh and iron nitrate nonahydrate as raw materials, and obtaining a Cu(OH)2 nano array through in-situ growth; obtaining a Cu(OH)2@Fe(OH)3 nano array precursor through interaction between a hydrolysis mechanism of iron ions and the Cu(OH)2 nano array prepared on the copper mesh substrate in situ; and through an in-situ phase transformation process, successfully preparing the Cu2O@FeO nano array with a heterostructure on the copper mesh substrate in a reducing gas atmosphere. The invention further relates to the copper mesh integrated Cu2O@FeO nano array and application thereof, wherein the material has excellent photodegradation and thallus inactivation performance under visible light irradiation. The method has the advantages of simplicity, few operation steps, low cost, convenience and simplicity in product treatment and the like, and is suitable for medium-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of photocatalyst materials, and relates to a photocatalyst in the field of photocatalytic degradation and bacteria inactivation, a preparation method and an application thereof. Specifically, the present invention relates to a double metal oxide nanoarray that can be used as a photocatalyst and its preparation method and application. Background technique [0002] Since the discovery of antibiotics in 1928, the use of antibiotics in the treatment of human and animal diseases has grown exponentially worldwide. However, the misuse of antibiotics has caused serious problems in aquatic environments, such as the accumulation of antibiotics, antibiotic-resistant bacteria, and the enrichment and inheritance of related resistance genes in vivo. These problems will increase bacterial resistance to antibiotics and reduce the effectiveness of therapeutic drugs. Therefore, it is urgent to find efficient ways to solve t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745B01J23/72B01J37/06B01J37/34B01J37/12B82Y30/00B82Y40/00C02F1/30A61L2/08C02F101/30C02F101/34C02F101/36C02F101/38A61L101/26A61L101/28
CPCB01J23/745B01J23/72B01J23/002B01J37/06B01J37/343B01J37/12B82Y30/00B82Y40/00C02F1/30A61L2/088C02F2101/30C02F2101/308C02F2101/34C02F2101/36C02F2101/38C02F2101/40C02F2305/10A61L2101/26A61L2101/28B01J35/39
Inventor 温鸣赵龙
Owner TONGJI UNIV
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