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Carbon material-supported copper-cobalt bimetallic sulfide composite material and its preparation method and application in waste water treatment

A technology of composite materials and carbon materials, which is applied in the fields of chemical industry, environmental protection, and materials. It can solve the problems of limited pH value of catalytic environment and low catalytic activity, and achieve the effect of improving pollutant degradation ability, high pollutant degradation effect, and accelerated rate.

Active Publication Date: 2017-07-14
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the catalytic activity of the existing heterogeneous Fenton-like catalysts is not high, and is limited by the pH value of the catalytic environment, especially in a strongly alkaline or acidic environment.

Method used

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  • Carbon material-supported copper-cobalt bimetallic sulfide composite material and its preparation method and application in waste water treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] After the carbon nanotubes are treated with acid, acidified carbon nanotubes are obtained after washing with water, separation and drying. Take 20.0 mg of acidified carbon nanotubes, add 10.0 ml of distilled water, and perform ultrasonic dispersion treatment to obtain a carbon nanotube dispersion, which is set aside.

[0050] Add 64.5 mg of copper acetate monohydrate and 161.0 mg of cobalt acetate tetrahydrate into 10.0 ml of water, and stir to obtain a copper-cobalt aqueous solution, which is set aside.

[0051] Dissolve 32.0mg of sodium carbonate in 1.0ml of water to obtain sodium carbonate solution, set aside.

[0052] Dissolve 75.0 mg of cysteine ​​in 10.0 ml of water to obtain a cysteine ​​solution, set aside.

[0053] Prepare the required materials by a two-step method:

[0054] S1. Add the prepared carbon nanotube dispersion to the copper-cobalt aqueous solution, and add sodium carbonate solution; add 0.5ml triethylamine solution to obtain the mixed solution; t...

Embodiment 2

[0059] After the carbon nanotubes are treated with acid, acidified carbon nanotubes are obtained after washing with water, separation and drying. Take 20.0 mg of acidified carbon nanotubes, add 10.0 ml of distilled water, and obtain a carbon nanotube dispersion after ultrasonic dispersion treatment, which is set aside.

[0060] Add 64.5 mg of copper acetate monohydrate and 161.0 mg of cobalt acetate tetrahydrate into 10.0 ml of water, and stir to obtain a copper-cobalt aqueous solution, which is set aside.

[0061] Dissolve 155.3 mg of cysteine ​​in 10.0 ml of water to obtain a cysteine ​​solution, set aside.

[0062] Prepare the required materials by a one-step method:

[0063] Add the prepared carbon nanotube dispersion to the copper-cobalt aqueous solution, and then add the cysteine ​​solution to obtain a mixed solution; transfer the mixed solution to a hydrothermal reactor, and perform a hydrothermal reaction at a temperature of 180°C for 12 hours . After the reaction, ...

Embodiment 3

[0067] After the carbon nanotubes are treated with an acid, acidified carbon nanotubes are obtained after washing with water, separation and drying. Take 20.0 mg of acidified carbon nanotubes, add 10.0 ml of distilled water, and perform ultrasonic dispersion treatment to obtain a carbon nanotube dispersion, which is set aside.

[0068] Add 64.5 mg of copper acetate monohydrate and 161.0 mg of cobalt acetate tetrahydrate into 10.0 ml of water, and stir to obtain a copper-cobalt aqueous solution, which is set aside.

[0069] Dissolve 32.0mg of sodium carbonate in 1.0ml of water to obtain sodium carbonate solution, set aside.

[0070] Dissolve 75.0 mg of cysteine ​​in 10.0 ml of water to obtain a cysteine ​​solution, set aside.

[0071] Prepare the required materials by a three-step method:

[0072] S1'. Add the prepared carbon nanotube dispersion to the copper-cobalt aqueous solution, then add the sodium carbonate solution; add 0.5ml triethylamine solution to the above dispers...

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Abstract

The invention discloses a carbon material-supported copper-cobalt bimetallic sulfide composite material and its preparation method and application in water treatment. In the composite material, the copper-cobalt bimetallic sulfide (CuCo2S4) micrometer or nanometer particles are loaded on the carbon material. Through a one-step method or a multi-step method, the composite material is prepared. In water treatment or waste water treatment, through synergistic effects between the copper-cobalt bimetals and synergistic effects between the sulfide and carbon material, the composite material has good catalytic degradation and degradation pollutant adsorption performances.

Description

technical field [0001] The present invention relates to carbon material loaded copper-cobalt bimetallic sulfide (CuCo 2 S 4 ) composite material and its preparation method and application in water treatment or wastewater treatment, belonging to the fields of materials, chemical industry and environmental protection. Background technique [0002] Today, environmental problems, especially water pollution, have directly affected people's living environment. To solve such problems, methods such as adsorption, photocatalysis, Fenton reaction, biodegradation, etc. have been proposed. The Fenton reaction uses ferrous iron salts to catalyze hydrogen peroxide (H 2 o 2 ), generating hydroxyl radicals (·OH) to degrade organic pollutants, which is an economical and environmentally friendly water treatment method. In addition to iron salts, copper, cobalt, cerium, and manganese salts have also been proven to have effects similar to Fenton's reaction. The disadvantage of this type o...

Claims

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Application Information

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IPC IPC(8): B01J27/045C02F1/72C02F101/30C02F103/30
CPCB01J27/045C02F1/722C02F1/725C02F2101/308C02F2103/30
Inventor 陶有胜张劢刘立乐王承辉
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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