Synthesis method of basic magnesium carbonate ultrathin nanosheet

A synthesis method and technology of magnesium carbonate, applied in the direction of magnesium carbonate, etc., to achieve the effect of uniform shape

Active Publication Date: 2020-03-31
XUZHOU NORMAL UNIVERSITY
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Problems solved by technology

In the process of synthesizing the basic magnesium carbonate nano-sheets, the thickness control of the basic magnesium carbonate nano-sheets is realized by adjusting the amount of sodium hydroxide and absolute ethanol, and finally the basic magnesium carbonate ultra-thin nano-sheets are obtained. A synthetic method of basic magnesium carbonate ultrathin nanosheets has not yet been reported

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  • Synthesis method of basic magnesium carbonate ultrathin nanosheet
  • Synthesis method of basic magnesium carbonate ultrathin nanosheet

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Embodiment 1

[0016] A kind of synthetic method (its size is between 0.3-0.5 μm) of basic magnesium carbonate ultrathin nanoplate: comprise the following steps, get magnesium acetate tetrahydrate (1mmol), ammonium carbonate (1.5mmol), polyvinylpyrrolidone (0.02320g ), sodium hydroxide (5.5mmol) were added to 5mL aqueous solution, and then 5mL absolute ethanol was added to the above solution, the above solution was transferred to a reaction kettle, ultrasonically dissolved, heated to 200°C in an oven, and the reaction time was 12h. The product was collected by centrifugation, and then washed several times with denatured alcohol. figure 1 Be the XRD ( figure 1 a) and SEM images ( figure 1 b). The XRD figure shows that the obtained product is basic magnesium carbonate, and the scanning electron microscope image shows that the obtained product is an ultrathin nanosheet, indicating that the size of the sheet is relatively uniform

Embodiment 2

[0018] Present embodiment is on the basis of embodiment 1 (1mmol magnesium acetate tetrahydrate, 1.5mmol ammonium carbonate, 0.02320g polyvinylpyrrolidone, 5mL water and 5mL dehydrated alcohol), change the amount of sodium hydroxide to be the product that 5.5mmol obtains SEM images ( figure 2 a) and the amount of sodium hydroxide is the scanning electron micrograph of the product that 6.5mmol obtains ( figure 2 b). The scanning electron micrographs of the product obtained by changing the amount of sodium hydroxide above show that the amount of sodium hydroxide of the present invention can be obtained within the range of 5.5mmol-6.5mmol and can obtain basic magnesium carbonate nanosheets with uniform size.

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Abstract

The invention discloses a synthesis method of a basic magnesium carbonate ultrathin nanosheet. The synthesis method comprises the following steps of: adding magnesium acetate tetrahydrate, ammonium carbonate, polyvinylpyrrolidone and sodium hydroxide into an aqueous solution, then adding absolute ethyl alcohol into the solution, transferring the solution into a reaction kettle, performing ultrasonic dissolving, heating and reacting for a period of time in a drying oven, centrifugally separating and collecting a product, and washing the product for multiple times to obtain the basic magnesium carbonate ultrathin nanosheet. According to the invention, the basic magnesium carbonate ultrathin nanosheet with uniform morphology is synthesized through one-step simple hydrothermal reaction, and the thickness of the basic magnesium carbonate ultrathin nanosheet can be regulated and controlled by regulating and controlling the amount of sodium hydroxide.

Description

technical field [0001] The invention relates to the synthesis of nanometer materials, in particular to a method for synthesizing basic magnesium carbonate ultrathin nanosheets. Background technique [0002] Basic magnesium carbonate, an inorganic compound, has a wide range of applications in real life, and can be used as refractory materials, insulation materials for boilers and pipelines, and additives for food, medicine, cosmetics, rubber, ink, etc. In the existing reports of nano basic magnesium carbonate, magnesium carbonate can grow into shapes such as flower shape, spherical rod shape and the like. In the process of synthesizing the basic magnesium carbonate nano-sheets, the thickness control of the basic magnesium carbonate nano-sheets is realized by adjusting the amount of sodium hydroxide and absolute ethanol, and finally the basic magnesium carbonate ultra-thin nano-sheets are obtained. A synthetic method of basic magnesium carbonate ultrathin nanosheets has not b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F5/24
CPCC01F5/24C01P2002/72C01P2004/03C01P2004/20
Inventor 韩锡光高浩
Owner XUZHOU NORMAL UNIVERSITY
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