Preparing method of yttrium manganese acid nanometer material

A nanomaterial, yttrium manganate technology, applied in the field of preparation of yttrium manganate nanomaterials, can solve the problems of high production cost, low product purity, high reaction temperature, etc., and achieve easy operation control, simple process route, and low preparation cost Effect

Inactive Publication Date: 2017-02-22
BOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The reaction temperature of the solid phase reaction method is high (1000 °C), the reaction is not easy to complete, and impurities often appear; the chemical co-precipitation method is prone to agglomeration during the thermal analysis process; the preparation process of...

Method used

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  • Preparing method of yttrium manganese acid nanometer material
  • Preparing method of yttrium manganese acid nanometer material
  • Preparing method of yttrium manganese acid nanometer material

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Experimental program
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Effect test

Embodiment 1

[0031] The molar ratio of yttrium acetylacetonate and manganese acetylacetonate was 1:1, accurately weighed and put into methanol (12C, 99.95%) to fully stir and dissolve. The molar concentration of acetylacetonate was 0.1 mol / L. The resulting mixed solution was subjected to solvothermal reaction, the solvothermal reaction temperature was 200 ° C, and the solvothermal reaction time was 12 hours. After the solvothermal reaction was completed, it was naturally cooled to room temperature, and the product obtained by the reaction was filtered and washed and placed in an oven at a programmed temperature increase rate of 5°C / min, and dried at 120°C for 5 hours. Then place it in a muffle furnace for calcination, the calcination time is 8 hours, the calcination temperature is 500 °C, and the heating rate is 10 °C / min. After natural cooling, the yttrium manganate nanometer material is obtained. The size of the nanoparticles is 20 nm, and the yield of the product is 99.9%. The purity ...

Embodiment 2

[0033] The molar ratio of yttrium acetylacetonate and manganese acetylacetonate is 1:1, accurately weighed and put into methanol (12C, 99.95%) to stir and dissolve. The molar concentration of yttrium acetylacetonate is 0.01 mol / L. The mixed solution obtained is carried out solvothermal reaction, and the solvothermal reaction temperature is 110 ℃, and the solvothermal reaction time is 48 hours. After the solvothermal reaction was completed, it was naturally cooled to room temperature, and the product obtained by the reaction was filtered and washed and placed in an oven at a programmed temperature increase rate of 5°C / min, and dried at 120°C for 2 hours. Then place it in a muffle furnace for calcination, the calcination time is 2 hours, the calcination temperature is 800 °C, and the heating rate is 10 °C / min. After natural cooling, the yttrium manganate nanometer material is obtained. The size of the nanoparticles is 30 nm, and the yield of the product is 99.8%. The purity of...

Embodiment 3

[0035] The molar ratio of yttrium acetylacetonate and manganese acetylacetonate was 1:1, accurately weighed and put into methanol (12C, 99.95%) to stir and dissolve. The molar concentration of yttrium acetylacetonate was 0.2 mol / L. The resulting mixed solution was subjected to solvothermal reaction, the solvothermal reaction temperature was 220 ° C, and the solvothermal reaction time was 6 hours. After the solvothermal reaction was completed, it was naturally cooled to room temperature, and the product obtained by the reaction was filtered and washed and placed in an oven at a programmed temperature increase rate of 5°C / min, and dried at 120°C for 5 hours. Then place it in a muffle furnace for calcination, the calcination time is 4 hours, the calcination temperature is 600 °C, and the heating rate is 10 °C / min. After natural cooling, the yttrium manganate nanometer material is obtained. The size of the nanoparticles is 25 nm, and the yield of the product is 99.8%. The purity...

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Abstract

The invention belongs to the field of inorganic nonmetallic materials preparation, and relates to a preparing method of a yttrium manganese acid nanometer material. The method comprises the steps of fully dissolving yttrium acetylacetone and manganese acetylacetone in a methanol solution, conducting a solvothermal reaction, conducting filtering and washing, and then conducting drying and calcination cooling to obtain the yttrium manganese acid material. According to the preparing method of the yttrium manganese acid nanometer material, the technology is simple, convenient and easy, the product purity is high, the preparing cost is low, and the size of the yttrium managanese acid nanometer material is 20-30 nm; in addition, both the homogeneity and the dispersity of the product are good, the manufacturing technique is simple, the sintering temperature is low, and the yttrium manganese acid nanometer material can be easily applied to mass production in practice. As a photocatalytic material, the yttrium manganese acid nanometer material has a high catalytic activity and has wide application prospects in the field of degradation of dyestuff wastewater and indoor noxious gases, photocatalysis sterilization and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation of inorganic non-metallic materials, and in particular relates to a preparation method of yttrium manganate nanometer material. Background technique [0002] Yttrium manganate (YMnO 3 ) has a hexagonal crystal structure and is a representative material in the series of rare earth manganese oxide materials. Due to its ferroelectricity, rare earth manganese oxides with unique electrical, optical, magnetic and properties are currently one of the hotspots in the field of condensed matter physics. It has unique application prospects in ferroelectricity, ferromagnetism, and ferroelectric memory. In recent years, related research reports have shown a rapid growth trend, mainly about the preparation and characterization of ferroelectric materials and devices. At the same time, yttrium manganate is also a semiconductor photocatalytic material, which has photocatalytic activity and can effectively cat...

Claims

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Application Information

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IPC IPC(8): C01G45/12B82Y30/00B01J23/34
CPCB01J23/34B01J35/004B01J35/023C01G45/1264C01P2004/03C01P2004/64C01P2006/80
Inventor 许家胜唐爽张杰孙誉东
Owner BOHAI UNIV
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