Preparation method for square strontium molybdate nano-plate

A technology of strontium molybdate and nanosheets, which is applied in the fields of nanostructure manufacturing, nanotechnology, nanotechnology, etc., can solve the problem that two-dimensional structure molybdate is rarely reported, and achieves low cost, mild and easily controllable conditions, and no energy. The effect of consumption

Inactive Publication Date: 2010-03-03
GUANGXI UNIV FOR NATITIES
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  • Claims
  • Application Information

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Problems solved by technology

At present, most of the research reports on molybdates focus on the one-dimensional and three-dimensiona

Method used

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  • Preparation method for square strontium molybdate nano-plate
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  • Preparation method for square strontium molybdate nano-plate

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Embodiment 1

[0022] 1) In a 50ml beaker, add 1.0g cetyltrimethylammonium bromide, 2.0ml n-butanol, 5.0ml n-heptane in turn, and add 0.4ml of 0.05mol / L manganese chloride aqueous solution under magnetic stirring. Stir for 30 minutes to form a homogeneous and transparent microemulsion containing strontium ions.

[0023] 2) Add 1.0ml of cetyltrimethylammonium bromide, 2.0ml of n-butanol, and 5.0ml of n-heptane in a 50ml beaker in sequence, and add 0.4ml of 0.05mol / L sodium molybdate aqueous solution under magnetic stirring. Stir for 30 minutes to form a homogeneous transparent molybdate ion microemulsion.

[0024] 3) The above two microemulsions respectively containing strontium chloride and sodium molybdate were slowly mixed under stirring conditions at room temperature, continued to stir for 5 minutes, and left to stand for aging at room temperature for 48 hours, and then mixed with acetone, deionized water and After repeated washing with absolute ethanol, square strontium molybdate nanosh...

Embodiment 2

[0027] 1) In a 50ml beaker, add 1.0g cetyltrimethylammonium bromide, 2.0ml n-butanol, 5.0ml n-heptane successively, and add 1.0ml 0.05mol / L strontium chloride aqueous solution under magnetic stirring. Stir for 30 minutes to form a homogeneous and transparent microemulsion containing strontium ions.

[0028] 2) Add 1.0 g of cetyltrimethylammonium bromide, 2.0 ml of n-butanol, and 5.0 ml of n-heptane in a 50 ml beaker in sequence, and add 1.0 ml of 0.05 mol / L sodium molybdate aqueous solution under magnetic stirring. Stir for 30 minutes to form a homogeneous and transparent microemulsion containing molybdate ions.

[0029] 3) The above two microemulsions respectively containing strontium chloride and sodium molybdate were slowly mixed under stirring conditions at room temperature, continued to stir for 5 minutes, and left to stand for aging at room temperature for 48 hours, and then mixed with acetone, deionized water and The spindle-shaped strontium molybdate nanocrystals can ...

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Abstract

The invention provides a preparation method for square strontium molybdate nano-plate with a two-dimensional structure, which comprises the following steps: selecting quaternary microemulsion comprising cationic surface active agent cetyl trimethyl ammonium bromide (CTAB), n-butyl alcohol, n-heptane and aqueous phase, taking sodium molybdate and strontium chloride as reactants, blending all components forming inverse microemulsion, and then violent stirring on a magnetic stirring apparatus to prepare uniform and transparent inverse microemulsion with stable characteristics, and then slowly blending microemulsion containing strontium chloride and microemulsion containing sodium molybdate, reacting, ageing, centrifugal separation, repeatedly washing with acetone, absolute ethyl alcohol and secondary water to prepare square platy strontium molybdate nano-structure with uniform appearance, size and height. The technical scheme that the preparation method uses the template effect possessedby reversed micelle microemulsion for preparing the two-dimensional square platy strontium molybdate nano-structure is characterized by simple production technology, safe production process, and agglomeration difficulty of products, and can be widely applied to the preparation of inorganic function materials.

Description

technical field [0001] The invention relates to a method for preparing square nanosheets, which uses an inverse microemulsion formed by a cationic surfactant as a template, and controls the formation conditions of the microemulsion to prepare sheet-like strontium molybdate nanocrystals. It belongs to the technical field of preparation of inorganic functional materials. technical background [0002] Based on the unique dependence of the properties of inorganic materials on their size and shape, control the morphology of synthetic inorganic crystals in the nanoscale range, especially for the preparation of low-dimensional nanostructure materials, such as: nanowires, nanotubes, nanoribbons, nanowires , nanosheets, etc., have become an important direction in the field of materials chemistry. A series of synthetic methods have been successfully applied to prepare low-dimensional nanostructured materials, which can be divided into two categories: template method and template-free...

Claims

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Application Information

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IPC IPC(8): C01G39/00B82B3/00
Inventor 黄在银米艳姜俊颖李艳芬
Owner GUANGXI UNIV FOR NATITIES
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