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Synthesis method for rock salt mine MnS nano-cuboid superlattice

A technology of nanocube and synthesis method, which is applied in the direction of nanotechnology, nanotechnology, chemical instruments and methods, etc., and can solve the problem of inability to effectively adjust the size of MnS nanomaterials, the nanocrystal product does not have a superlattice, and the preparation method is complicated. problem, to achieve the effect of controllable nanocrystal size, short synthesis time and simple process

Inactive Publication Date: 2013-02-27
JILIN UNIV
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

In order to prepare MnS nanomaterials, it is usually necessary to rapidly lower the temperature for extraction. The preparation method given in this document is complicated, the reaction time is long, and the reaction temperature of 250-350 ° C is lowered to room temperature in less than 1 minute.
The obtained nanocrystalline products do not have the morphology of superlattice, nor can they effectively adjust the size of MnS nanomaterials

Method used

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  • Synthesis method for rock salt mine MnS nano-cuboid superlattice
  • Synthesis method for rock salt mine MnS nano-cuboid superlattice
  • Synthesis method for rock salt mine MnS nano-cuboid superlattice

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Embodiment 1

[0027] The synthesis of embodiment 1 rock salt mine MnS nano cube superlattice

[0028] The synthetic rock salt MnS nano cube superlattice is carried out in the Schlenk system, and the synthetic process needs nitrogen protection. The specific synthetic process is as follows: 0.063g of anhydrous MnCl 2 . One side of the flask was inserted under the liquid surface, stirred and heated to 80°C, and a uniform orange-yellow solution was obtained after about 1 hour. Then the solution was heated to 250° C., and the orange solution gradually turned green to form rock salt ore MnS nanocrystals. The reaction time was 30 minutes to obtain 14 nm rock salt ore MnS nanocrystals. Finally, the solution is naturally cooled to room temperature, and the rock salt ore MnS nanocube superlattice can be obtained.

Embodiment 2

[0029] Synthesis of Example 2 Rock Salt MnS Nano Cube Superlattice

[0030] The amount of raw materials and ligands, and the synthesis process are the same as in Example 1. Only the reaction time at 250°C was changed to 60min, and 26nm rock salt ore MnS nanocrystals were obtained. Naturally cooled to room temperature, the rock salt ore MnS nanocube superlattice was obtained.

Embodiment 3

[0031] The synthesis of embodiment 3 rock salt mine MnS nano cube superlattice

[0032] The amount of raw materials and ligands, and the synthesis process are the same as in Example 1. Only the reaction time was changed to 120min at 250°C to obtain 40nm rock salt ore MnS nanocrystals. Naturally cooled to room temperature, the rock salt ore MnS nanocube superlattice was obtained.

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Abstract

A synthesis method for a rock salt mine MnS nano-cuboid superlattice, which is disclosed by the invention, belongs to the technical field of nano-material preparation. Anhydrous manganese chloride and thioacetamide as materials and oleylamine and oleic acid as ligands are mixed, agitated and heated until uniform orange solution is obtained; the solution is then heated to 240 DEG C to 260 DEG C, and reacts for 0.5 to 2 hours, so that rock salt mine MnS nano-crystals are formed; and finally, the solution is naturally cooled to room temperature, so that the rock salt mine MnS nano-cuboid superlattice is obtained. The synthesis method has the advantages of common used materials, simple process, short synthesis time, high repeatability, safety and the like, and the nano-crystal size of the product is controllable; and the prepared rock salt mine MnS nano-cuboid superlattice has the advantages of stable structure, high phase purity, good crystallinity, uniform grain size distribution and good optical and magnetic properties.

Description

technical field [0001] The invention belongs to the technical field of nanometer material preparation, in particular to a method for preparing rock salt MnS nano cube superlattice. Background technique [0002] As an important magnetic semiconductor material, MnS exhibits various important optical, magnetic, and electron transport properties. It has potential applications in magneto-optic nanodevices, dilute magnetic semiconductors, solar cells, short-wave optoelectronic devices, and photocatalysis. In particular, MnS is an antiferromagnetic semiconductor material with interesting magnetic alignment. In thin-film superlattices, this magnetic alignment can be tuned by controlling the dimensions and thickness. The synthesis and properties of size-controllable rock-salt MnS nanocrystals have attracted extensive research interest due to their broad application potential. [0003] MnS has three crystal structures: rock saltite, sphalerite and wurtzite. Sphalerite and wurtzite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G45/00B82Y30/00
Inventor 邹勃杨新一王英楠邹广田
Owner JILIN UNIV
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