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Fenton reagent Fe3O4/C as well as preparation method and application thereof

A technology of Fenton's reagent and fe3o4, which is used in catalyst activation/preparation, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve problems such as low efficiency, and achieve simple preparation method, good catalytic performance, and economical recovery. cost effect

Active Publication Date: 2021-06-22
LIAONING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current heterogeneous electro-Fenton system is generally inefficient, so it is necessary to further develop heterogeneous Fenton reagents with high catalytic performance.

Method used

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  • Fenton reagent Fe3O4/C as well as preparation method and application thereof
  • Fenton reagent Fe3O4/C as well as preparation method and application thereof
  • Fenton reagent Fe3O4/C as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 Fe 3 o 4 / C nanomaterials

[0033] (1) The preparation method is as follows

[0034] 1. Synthesis of Fe-BTC precursor

[0035] 1.3 g of trimesic acid was dissolved in an aqueous sodium hydroxide solution consisting of 50 g of deionized water and 0.75 g of sodium hydroxide to obtain a colorless solution 1.

[0036] Yellow-orange solution 2 was prepared by dissolving 2.5 g of ferric chloride hexahydrate in 50 g of deionized water.

[0037] Under magnetic stirring, solution 2 was added dropwise into solution 1 to form a brown suspension. The resulting suspension was stirred at room temperature for two hours and the solid product was recovered by centrifugation. The solid product obtained above was washed several times with deionized water and absolute ethanol, and dried at room temperature to obtain an iron-based metal-organic framework Fe-BTC.

[0038] 2. Fe 3 o 4 Synthesis of / C

[0039] The Fe-BTC powder obtained above was evenly spread in a porcelain...

Embodiment 2

[0045] Embodiment 2 Fenton's reagent Fe 3 o 4 Application of / C in Removal of Organic Dyes by Electro-Fenton Process

[0046] (1) MoO 3-x / C / CoO nanocomposites were prepared by the following method

[0047] 1. MoO 3 Synthesis of nanorods

[0048] 4mmol (NH 4 ) 6 Mo 7 o 24 4H 2 O was dissolved in 80ml of deionized water, and magnetically stirred for 30min to obtain a homogeneous solution. Subsequently, 12 ml of nitric acid was added to the above solution, and after stirring for 30 min, the obtained reactant was transferred into an autoclave, and heated in an oven at 180° C. for 24 hours. Take out the autoclave, wait for it to cool to room temperature, and collect the product by centrifugal centrifugation. Then they were washed three times with absolute ethanol and deionized water, and the resultant was dried in an oven at 60°C to obtain MoO 3 Nano stave.

[0049] 2. MoO 3 / Synthesis of ZIF-67 precursor

[0050] 0.6g Co(NO 3 )2·6H 2 O was dispersed in 40 mL of d...

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Abstract

The invention discloses a Fenton reagent Fe3O4 / C as well as a preparation method and an application thereof. An iron-based metal organic framework is synthesized by using a simple hydrothermal method, then heat treatment is performed to obtain Fe3O4 / C, and the Fe3O4 / C is applied to an electro-Fenton system as a Fenton reagent for the first time. A nitrogen adsorption experiment shows that a large number of mesopores exist in the material, and the BET specific surface area of the material is 73.3310 m<2> / g through calculation. A magnetic test experiment result proves that the material has relatively high magnetism, so that the material is easy to recycle after an electro-Fenton experiment. An electro-Fenton experiment result shows that even under a neutral condition, the removal rate of a system taking Fe3O4 / C as a catalyst to rhodamine B can still reach 55.5%, which is far higher than that of a traditional Fenton reagent.

Description

technical field [0001] The invention belongs to the technical field of preparation of electric Fenton system electrode materials, specifically, relates to Fenton reagent Fe 3 o 4 / C and its preparation method and application. Background technique [0002] Water is a primary need to sustain all life on Earth and plays a key role in maintaining ecosystems. However, with the rapid economic growth and the rapid development of modern industry, the problem of water shortage has already come quietly. Due to the massive discharge of industrial wastewater, the problem of water shortage is becoming more and more serious. [0003] Among various industrial chemicals, organic dyes are an important component. With the continuous development of the printing and dyeing industry, the pollution of dye wastewater to natural water bodies has become more and more serious. Most of the dyes involved in life and production are carcinogenic. If these dyes exist in mammals, they have a high prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745B01J35/10B01J37/08C02F1/461C02F1/72C02F101/30
CPCB01J23/745B01J37/086C02F1/46109C02F1/4672C02F2001/46133C02F2101/308C02F2305/026B01J35/33B01J35/23B01J35/613
Inventor 许维国胡加波韩沐竹刘琳韩正波
Owner LIAONING UNIVERSITY
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