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Preparation method and application of MnxOy material

A mixed solution and distilled water technology, applied in chemical instruments and methods, water/sludge/sewage treatment, metal/metal oxide/metal hydroxide catalyst, etc., can solve the problem of pollutants, teratogenicity, Threats to human health and safety and other issues, to achieve the effect of repeatable harmless treatment

Active Publication Date: 2020-08-14
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, with the rapid development of modern industry, the pollution of industrial wastewater from chemical industry, mineral processing, pharmaceutical and other industries is becoming more and more serious, especially those that are difficult to biodegrade, bioaccumulate, mutagenic, teratogenic, and carcinogenic. Pollutants with "three-to-one" characteristics and difficult to obtain satisfactory results by conventional treatment methods have seriously threatened human health and safety

Method used

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  • Preparation method and application of MnxOy material
  • Preparation method and application of MnxOy material
  • Preparation method and application of MnxOy material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] mn x o y The preparation of materials, the method is as follows:

[0031] 1) Dissolve 2 mmol of manganese chloride tetrahydrate in a mixed solution of 25 mL of distilled water and 20 mL of glycerol and keep stirring for 25 min to form a mixed solution 1;

[0032] 2) Under the condition of magnetic stirring, add 10 mL of 2 mol / L NaOH solution dropwise to the above mixed solution 1 and continue to stir for 3 h to form mixed solution 2;

[0033] 3) Pour the mixture 2 into a 100ml reaction kettle, put it in an oven, and keep the temperature at 150°C for 24 hours;

[0034] 4) After the reaction is completed, cool to room temperature, centrifuge the obtained precipitate, wash 3 times with distilled water, wash 2 times with ethanol, and dry at 60°C for 5.5 hours to obtain brown-yellow Mn x o y Material.

Embodiment 2

[0036] mn x o y The preparation of materials, the method is as follows:

[0037] 1) Dissolve 2 mmol of manganese chloride tetrahydrate in a mixed solution of 15 mL of distilled water and 30 mL of glycerol and keep stirring for 25 min to form a mixed solution 1;

[0038] 2) Under the condition of magnetic stirring, add 10 mL of 2 mol / L NaOH solution dropwise to the above mixed solution 1 and continue to stir for 3 h to form mixed solution 2;

[0039] 3) Pour the mixture 2 into a 100ml reaction kettle, put it in an oven, and keep the temperature at 150°C for 24 hours;

[0040] 4) After the reaction is completed, cool to room temperature, centrifuge the obtained precipitate, wash 3 times with distilled water, wash 2 times with ethanol, and dry at 80°C for 9.5 hours to obtain brown-yellow Mn x o y Material.

Embodiment 3

[0042] mn x o y The preparation of materials, the method is as follows:

[0043] 1) Dissolve 2 mmol of manganese chloride tetrahydrate in a mixed solution of 15 mL of distilled water and 30 mL of glycerol and keep stirring for 25 min to form a mixed solution 1;

[0044] 2) Under the condition of magnetic stirring, add 10 mL of 2 mol / L NaOH solution dropwise to the above mixed solution 1 and continue to stir for 3 h to form mixed solution 2;

[0045] 3) Pour the mixture 2 into a 100ml reaction kettle, put it in an oven, and keep the temperature at 150°C for 24 hours;

[0046] 4) After the reaction is completed, cool to room temperature, centrifuge the obtained precipitate, wash 3 times with distilled water, wash 2 times with ethanol, and dry at 60°C for 5.5 hours to obtain brown-yellow Mn x o y Material.

[0047] figure 1 shows Mn x o y The X-ray diffraction pattern of the material, it can be seen from the figure that the prepared Mn x o y The material is a composite of...

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Abstract

The invention discloses a preparation method and application of a MnxOy material and belongs to the technical field of environmental chemical water treatment. The invention aims to provide a simple and feasible method for activating PMS by inducing a MnxOy material with visible light. The preparation method comprises the following steps of: dissolving manganese chloride tetrahydrate into a mixed solution of distilled water and glycerol, adding a NaOH solution, stirring, reacting in the oven, and centrifuging the precipitate to obtain the MnxOy material. The MnxOy material prepared by the preparation method activates PMS under the irradiation of visible light to generate sulfate free radicals and hydroxyl free radicals which have long service life and strong oxidability and are used for synergistically degrading organic pollutants in water.

Description

technical field [0001] The invention belongs to the technical field of environmental chemical water treatment, in particular to a Mn x o y Preparation methods of materials and their applications. Background technique [0002] At present, with the rapid development of modern industry, the pollution of industrial wastewater from chemical industry, mineral processing, pharmaceutical and other industries is becoming more and more serious, especially those that are difficult to biodegrade, bioaccumulate, mutagenic, teratogenic, and carcinogenic. Pollutants with "three-to-three" characteristics and difficult to obtain satisfactory results by conventional treatment methods have seriously threatened human health and safety. Therefore, it has become an effective means to solve this worldwide problem today to devote ourselves to the development and utilization of renewable energy—solar energy and the technology of completely harmless treatment of industrial wastewater. [0003] Sul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/34C02F1/30C02F101/30C02F101/34
CPCB01J23/34C02F1/30C02F2101/308C02F2305/10C02F2101/345B01J35/39Y02W10/37
Inventor 王韵芳柴晨刘建新王雅文张小超李瑞樊彩梅
Owner TAIYUAN UNIV OF TECH
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