Activated carbon/zirconium-manganese oxide composite material, method for preparing same and application of activated carbon/zirconium-manganese oxide composite material

A technology of manganese oxide and composite materials, applied in chemical instruments and methods, water pollutants, other chemical processes, etc., can solve the problem that the adsorption capacity is not as expected, achieve low investment, realize large-scale batch production, and reduce agglomeration Effect

Active Publication Date: 2019-05-10
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After combining the two, the adsorption capacity is not as expected due to severe agglomeration

Method used

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  • Activated carbon/zirconium-manganese oxide composite material, method for preparing same and application of activated carbon/zirconium-manganese oxide composite material
  • Activated carbon/zirconium-manganese oxide composite material, method for preparing same and application of activated carbon/zirconium-manganese oxide composite material
  • Activated carbon/zirconium-manganese oxide composite material, method for preparing same and application of activated carbon/zirconium-manganese oxide composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Dissolve 88mg of activated carbon solid in 15ml of deionized water and 15ml of absolute ethanol mixture, and sonicate for 1 hour;

[0043] (2) Add 500 mg of zirconium oxychloride solid to the mixed solution obtained in step (1), continue stirring, and continue to add 524.5 mg of manganese sulfate solid to obtain a mixed solution;

[0044] (3) Add 0.5ml of 4mol / L sodium hydroxide solution dropwise into the mixed solution obtained in step (2), and keep stirring;

[0045] (4) Add 0.5ml of 30% (mass ratio) hydrogen peroxide solution dropwise into the mixed solution obtained in step (3), and after continuous stirring, ultrasonicate for 1 hour;

[0046] (5) Put the solution obtained in step (4) into a high-temperature reaction kettle, seal it, and place it in an oven at 180°C for 0.5h;

[0047] (6) After the reactants in step (5) are cooled to room temperature, they are centrifuged and washed, then dried in an oven at 60°C for 12 hours, ground, and passed through a 60-me...

Embodiment 2

[0055] (1) Dissolve 176mg of activated carbon solid in 15ml of deionized water and 15ml of absolute ethanol mixture, and sonicate for 2 hours;

[0056] (2) Add 500 mg of zirconium oxychloride solid to the mixed solution obtained in step (1), continue stirring, and continue to add 262.3 mg of manganese sulfate solid to obtain a mixed solution;

[0057] (3) Add 1ml of 4mol / L sodium hydroxide solution dropwise into the mixed solution obtained in step (2), and keep stirring;

[0058] (4) Add 1ml of 30% hydrogen peroxide solution dropwise into the mixed solution obtained in step (3), after continuous stirring, ultrasonic treatment for 2 hours;

[0059] (5) Put the solution obtained in step (4) into a high-temperature reactor, seal it, and place it in an oven at 150°C for 1 hour;

[0060] (6) After the reactants in step (5) are cooled to room temperature, they are centrifuged and washed, then dried in an oven at 60°C for 12 hours, ground, and passed through a 60-mesh sieve to obtai...

Embodiment 3

[0068] (1) Dissolve 44mg of activated carbon solid in 15ml of deionized water and 15ml of absolute ethanol mixture, and sonicate for 1 hour;

[0069] (2) Add 500 mg of zirconium oxychloride solid to the mixed solution obtained in step (1), continue stirring, and continue to add 524.5 mg of manganese sulfate solid to obtain a mixed solution;

[0070] (3) Add 1ml of 5mol / L sodium hydroxide solution dropwise into the mixed solution obtained in step (2), and keep stirring;

[0071] (4) Add 1ml of 30% hydrogen peroxide solution dropwise into the mixed solution obtained in step (3), after continuous stirring, ultrasonic treatment for 2 hours;

[0072] (5) Put the solution obtained in step (4) into a high-temperature reactor, seal it, and place it in an oven at 150°C for 12 hours;

[0073] (6) After the reactants in step (5) are cooled to room temperature, they are centrifuged and washed, then dried in an oven at 50°C for 12 hours, ground, and passed through a 200-mesh sieve to obta...

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Abstract

The invention discloses an activated carbon/zirconium-manganese oxide composite material, a method for preparing the same and application of the activated carbon/zirconium-manganese oxide composite material. The method includes adding activated carbon into water and alcohol mixed liquid and carrying out ultrasonic treatment to obtain modified activated carbon solution; adding zirconium oxychlorideand manganese sulfate solid into the modified activated carbon solution under stirring conditions to obtain mixed solution; adding sodium hydroxide solution into the mixed solution and continuing tostir the sodium hydroxide solution and the mixed solution to obtain gray black mixed solution; adding hydrogen peroxide solution into the gray black mixed solution, continuing to stir the hydrogen peroxide solution and the gray black mixed solution at the normal temperature, and further carrying out ultrasonic treatment; filling reaction kettles with mixed solution, carrying out high-temperature reaction and then carrying out centrifuging, washing, drying, grinding and sieving to obtain the activated carbon/zirconium-manganese oxide composite material. The activated carbon/zirconium-manganeseoxide composite material, the method and the application have the advantages that the activated carbon/zirconium-manganese oxide composite material can be used as an adsorbent to be used in the fieldof water pollution control and particularly can be used for removing arsenic in wastewater, the method is simple, the activated carbon/zirconium-manganese oxide composite material is high in adsorptive capacity, and trivalent arsenic can be oxidized to obtain pentavalent arsenic by the activated carbon/zirconium-manganese oxide composite material.

Description

technical field [0001] The invention relates to the technical field of water pollution control, in particular to an activated carbon / zirconium-manganese oxide composite material and its preparation method and application. Background technique [0002] With the continuous development of industry, a large amount of industrial wastewater is discharged into natural water bodies, causing water pollution, which not only aggravates the shortage of water resources in China but also endangers the ecological environment and human health. Due to the characteristics of high toxicity, non-degradability and accumulation of heavy metals, heavy metal pollution in water has been widely concerned. Arsenic is a metalloid element, which has great harm to human health. Long-term intake of arsenic-containing polluted water may lead to high blood pressure, neurological diseases, diabetes, and even liver cancer, lung cancer, kidney cancer and bladder cancer. Therefore, arsenic has been It is liste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F101/10C02F101/20
Inventor 罗汉金尹雨薇周婷婷耿俊杰余文艺
Owner SOUTH CHINA UNIV OF TECH
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