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3D (three-dimensional) micronano ball-flower magnesium molybdate and preparation method thereof

A flower ball magnesium molybdate, micro-nano technology, applied in nanotechnology, chemical instruments and methods, molybdenum compounds and other directions, can solve the problem of less 3D micro-nano structure magnesium molybdate, etc., and achieve uniform morphology, low cost, and crystallinity. high effect

Active Publication Date: 2017-06-27
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regarding the preparation of magnesium molybdate, there are nanoparticles prepared by sintering method, fiber network structure prepared by electrostatic flocking method, and magnesium molybdate nano-film prepared by dip coating, but there are relatively few reports about the preparation of 3D micro-nano structure magnesium molybdate. few

Method used

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  • 3D (three-dimensional) micronano ball-flower magnesium molybdate and preparation method thereof
  • 3D (three-dimensional) micronano ball-flower magnesium molybdate and preparation method thereof
  • 3D (three-dimensional) micronano ball-flower magnesium molybdate and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Step 1: P123 (polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer) aqueous solution A that configuration concentration is 0.01 mol / liter, magnesium chloride hexahydrate and ethylene glycol are according to mass ratio 20 : 1 is mixed and formulated into solution B, and sodium molybdate dihydrate and aqueous solution A are mixed and formulated into solution C according to a mass ratio of 10:2;

[0024] Step 2: Mix solution B and solution C according to the volume ratio of 1:2, mix and stir for 8 minutes, then move to the reaction kettle, seal it, and conduct a hydrothermal reaction at 160°C for 5 hours. After the reaction, the product is vacuum filtered and washed. Dried to obtain magnesium molybdate nanosheets;

[0025] Step 3: Place the magnesium molybdate nanosheets at 1000° C. for 3 minutes at a constant temperature in an air atmosphere, and then quickly take them out and put them in deionized water at 20° C. to obtain 3D micro-nano curdled ma...

Embodiment 2

[0030] Step 1: P123 (polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer) aqueous solution A that configuration concentration is 0.03 mol / liter, magnesium chloride hexahydrate and ethylene glycol are according to mass ratio 20 : 2 mixed and formulated into solution B, sodium molybdate dihydrate and aqueous solution A are mixed and formulated into solution C according to mass ratio 10:1;

[0031] Step 2: Mix and stir solution B and solution C for 10 minutes according to the volume ratio of 1:1, then move to the reaction kettle, seal it, and react hydrothermally at 180°C for 3 hours. After the reaction, the product is vacuum filtered and washed. Dried to obtain magnesium molybdate nanosheets;

[0032] Step 3: After calcining the magnesium molybdate nanosheets at 600°C and constant temperature in an air atmosphere for 30 minutes, quickly take them out and put them into deionized water at 25°C to obtain 3D micro-nano curd magnesium molybdate.

Embodiment 3

[0034] Step 1: P123 (polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer) aqueous solution A that configuration concentration is 0.05 mol / liter, magnesium chloride hexahydrate and ethylene glycol are according to mass ratio 40 : 3 mixed and formulated into solution B, sodium molybdate dihydrate and aqueous solution A are mixed and formulated into solution C according to mass ratio 20:3;

[0035] Step 2: Mix and stir solution B and solution C for 5 minutes according to the volume ratio of 1:3, then move to the reaction kettle, seal it, and conduct a hydrothermal reaction at 200°C for 7 hours. After the reaction, the product is vacuum filtered and washed. Dried to obtain magnesium molybdate nanosheets;

[0036] Step 3: After calcining the magnesium molybdate nanosheets at 800° C. under an air atmosphere at a constant temperature for 15 minutes, quickly take them out and put them in deionized water at 18° C. to obtain 3D micro-nano curdled magnesium molyb...

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Abstract

The invention discloses a 3D (three-dimensional) micronano ball-flower magnesium molybdate and a preparation method thereof. The preparation method includes: firstly, configuring a P123 water solution A, mixing magnesium chloride hexahydrate with ethylene glycol into a solution B and mixing sodium molybdate dehydrate with the water solution A into a solution C; secondly, mixing the solution B with the solution C prior to moving the mixture to a reaction kettle for sealing and hydrothermal reaction; after reaction is completed, subjecting the product to vacuum filter washing and drying to obtain magnesium molybdate nanoparticles; finally, placing the magnesium molybdate nanoparticles in air atomosphere for constant-temperature calcination, rapidly taking out the magnesium molybdate nanoparticles and putting the same in deiondized water to obtain the 3D micronano ball-flower magnesium molybdate. The 3D micronano ball-flower magnesium molybdate and the preparation method thereof have the advantages that the magnesium molybdate nanoparticles can be self-assembled to 3D micronano flower balls high in specific surface, high in purity and uniform in morphology, and the preparation method is simple, low in cost, high in repeatability and free of pollution to environment.

Description

technical field [0001] The invention belongs to the field of preparation of inorganic nanomaterials, and in particular relates to a 3D micronano curd magnesium molybdate and a preparation method thereof. Background technique [0002] At present, the assembly of one-dimensional or two-dimensional nanostructure units is gradually becoming a new hotspot in the research of nanomaterials. The orderly assembly of one-dimensional or two-dimensional nanostructure units into three-dimensional or even higher-level structures will enable more efficient preparation of functional nanoelectronic devices. Regarding the preparation of magnesium molybdate, there are nanoparticles prepared by sintering method, fibrous network structure prepared by electrostatic flocking method, and magnesium molybdate nano-film prepared by dip coating, but there are relatively few reports about the preparation of 3D micro-nano structure magnesium molybdate. few. Contents of the invention [0003] In order...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G39/00B82Y40/00
CPCC01G39/00C01P2002/72C01P2004/03C01P2004/32C01P2004/45
Inventor 张利锋贺文杰刘毅郭守武
Owner SHAANXI UNIV OF SCI & TECH
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