Preparation method of mesoporous manganic manganous oxide

Abstract

The invention provides a preparation method of mesoporous manganic manganous oxide. The preparation method comprises the following steps: weighing a certain amount of CTAB, dissolving CTAB into distilled water, stirring to disperse CTAB, adding a Mn(NO3)2 solution with a concentration of 50 wt% under stirring, keeping on stirring, adjusting the pH value by a NaOH solution, performing aging for 3 hours at a temperature of 90 DEG C, washing the product by hot water, subjecting the product to suction filtration, drying the product at a temperature of 90 DEG C for 6 hours, and burning the product at a temperature of 400-600 DEG C so as to obtain the mesoporous manganic manganous oxide. Through a great number of experiments, a cationic surfactant CTAB is taken as the template to prepare manganic manganous oxide with a mesoporous structure, and the mesoporous manganic manganous oxide is suitable for being taken as a high activity catalyst. The prepared material has a mesoporous structure and a large specific surface area, and the mesoporous manganic manganous oxide has a high catalytic oxidizing activity on propane. The preparation method has the advantages of simple preparation technology and equipment, convenient operation, low cost, low energy consumption, and no pollution, and thus has a very good industrialization prospect.

Description

technical field [0001] The invention relates to the field of medicines, in particular to a preparation method of mesoporous trimanganese tetraoxide. Background technique [0002] Trimanganese tetraoxide is an important chemical material widely used in electrode materials, redox reactions of volatile organic compounds and preparation of soft magnetic manganese zinc ferrite. [0003] At present, the preparation methods of trimanganese tetraoxide mainly include roasting method, spray pyrolysis method, combustion method, manganese salt (or Mn2+) method, metal manganese (powder, granule, sheet) method, etc. The above-mentioned methods all have different defects: such as high energy consumption and high production cost; waste generated during the production process makes secondary treatment difficult; some impurities are contained in the product; the specific surface area is relatively small, etc. Chinese patent ZL200710179579.2 discloses a preparation method of manganic manganes...

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Problems solved by technology

The above methods all have different defects: such as high energy consumption and high production cost; waste generated in the production process, secondary treatment is difficult; some impurities are contained in the product; the specific surface area is relatively small, etc.

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