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Preparation of Cu doped MnO2 mesoporous material and application of material in Fenton-like water treatment advanced oxidation technology

An advanced oxidation technology and mesoporous material technology, which is applied in the preparation of MnO2-doped Cu mesoporous materials and its application in Fenton-like water treatment advanced oxidation technology, which can solve the problems of poor treatment effect

Inactive Publication Date: 2015-08-19
BEIJING FORESTRY UNIVERSITY
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Problems solved by technology

[0005] The present invention aims at the polluted water body containing ultraviolet stabilizer benzotriazole, in order to solve the problem of poor treatment effect of existing conventional sewage, innovatively proposes the use of mesoporous MnO 2 Doping Cu as a catalyst in Fenton-like advanced oxidation technology for water treatment and targeting mesoporous MnO 2 The preparation and application conditions of doped Cu catalysts are described

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  • Preparation of Cu doped MnO2 mesoporous material and application of material in Fenton-like water treatment advanced oxidation technology

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specific Embodiment approach 1

[0011] Specific implementation mode 1: The mesoporous material MnO in this implementation mode 2 The preparation method of doped Cu catalyst is: (1) Precursor solution preparation, 28.0~32.0mmol potassium permanganate is dissolved in 45~55mL deionized water, and 7.0~8.0mmol CuSO 4 ·5H 2 O was added to the above solution; (2) mesoporous MnO 2 For the preparation of doped Cu, dissolve 8.0-12.0 mmol of maleic acid in 45-55 mL of deionized water, then add it dropwise as a reducing agent to the solution obtained in step (1), and keep stirring for 0.8-1.2 hours; ( 3) aging, the suspension obtained in step (2) is continuously aged at room temperature for 22 to 26 hours; (4) washing, the black or brown sol sample obtained after aging is repeatedly washed with deionized water, and put into the supernatant No Cu ions exist; (5) drying, keeping the sample obtained after washing at 68-72°C for 11-13 hours to obtain a dry solid; (6) calcining, the dry powder obtained through step (5) is ...

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Abstract

The invention provides the preparation of a Cu doped MnO2 mesoporous material and the application of the material in the Fenton-like water treatment advanced oxidation technology, and belongs to the fields of water treatment technologies and environment function materials. The property of the Cu doped MnO2 mesoporous material can be powder or particle; potassium permanganate, CuSO4 5H2O and maleic acid are used as main materials; the Cu doped MnO2 mesoporous material is prepared; and the ability of degradation of the Fenton-like technology on benzotriazole is improved. In order to solve the problem that the existing conventional sewage treatment has a poor effect in removing new pollutant benzotriazole, the invention provides the Cu doped MnO2 mesoporous material to be used as a catalyst, and the mesoporous material is successfully applied to a Fenton-like reaction system, the defects of the traditional Fenton method are overcome, the reactive pH range is enlarged, the forming of sludge containing iron is avoided, and the catalyst can be reused.

Description

technical field [0001] The present invention relates to a kind of MnO 2 Preparation of Cu-doped mesoporous materials and their application in advanced oxidation technology for Fenton-like water treatment. Background technique [0002] Benzotriazole and its methyl-substituted derivatives are a new class of toxic nitrogen-containing organic pollutants with high water solubility and polarity. Benzotriazole and its derivatives are widely used in industry, agricultural production and daily life, such as the production of aircraft, automobile antifreeze, metal corrosion inhibitors, UV stabilizers for plastic products, etc. Due to the characteristics of large amount of use and refractory degradation, benzotriazole and its derivatives inevitably enter the environment through various channels, resulting in a large amount of benzotriazole substances in water, and benzotriazoles with high concentrations After the sewage of benzotriazoles goes through the conventional sewage treatment...

Claims

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Application Information

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IPC IPC(8): B01J23/889B01J20/06C02F1/72
Inventor 齐飞张钰婷徐冰冰
Owner BEIJING FORESTRY UNIVERSITY
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