Method for preparing BiOCl monocrystalline nano-chip

A technology of bismuth oxychloride and single crystal nano-sheets, which is applied in the field of preparing bismuth oxychloride single-crystal nanosheets, and can solve the problems that single-crystal nanosheets have not been reported.

Inactive Publication Date: 2011-08-24
XINJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] A variety of methods have been reported above to prepare different bismuth oxychloride nanostructur

Method used

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  • Method for preparing BiOCl monocrystalline nano-chip
  • Method for preparing BiOCl monocrystalline nano-chip
  • Method for preparing BiOCl monocrystalline nano-chip

Examples

Experimental program
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Effect test

Embodiment 1

[0021] ① The raw material BiCl 3 (Purity is mass percentage ≥ 99.1%), KBH 4 (purity is mass percent ≥ 98.0%), put into deionized water and dehydrated ethanol mixed solution (30ml) according to molar ratio 3 / 5, carry out stirring reaction, deionized water and dehydrated alcohol mixed volume ratio are 1 / 4 ; ②Then, the mixed solution is poured into the PTFE liner, the filling volume is 2 / 3, put on the steel jacket and keep the temperature at 200°C for 24 hours; ③Finally, the autoclave is cooled to room temperature, and the reaction product is collected , cleaning, separating, finally collecting and drying to obtain bismuth oxychloride single crystal nanosheets.

Embodiment 2

[0023] ① The raw material BiCl 3 (Purity is mass percentage ≥ 99.1%), KBH 4 (purity is mass percent ≥ 98.0%), put into deionized water and dehydrated ethanol mixed solution (20ml) according to molar ratio 3 / 5, carry out stirring reaction, deionized water and dehydrated alcohol mixed volume ratio are 1 / 4 ; ②Then, the mixed solution is poured into the PTFE liner, the filling amount is 4 / 9, put on the steel jacket and keep at a temperature of 200°C for 24 hours; ③Finally, the autoclave is cooled to room temperature, and the reaction product is collected , cleaning, separating, finally collecting and drying to obtain bismuth oxychloride single crystal nanosheets.

Embodiment 3

[0025] ① The raw material BiCl 3 (Purity is mass percentage ≥ 99.1%), KBH 4 (purity is mass percent ≥ 98.0%), put into deionized water and dehydrated ethanol mixed solution (24ml) according to molar ratio 3 / 5, carry out stirring reaction, deionized water and dehydrated alcohol mixed volume ratio are 1 / 3 ; ②Then, the mixed solution is poured into the PTFE liner, the filling volume is 8 / 15, put on the steel jacket and keep at a temperature of 200°C for 24 hours; ③Finally, the autoclave is cooled to room temperature, and the reaction product is collected , cleaning, separating, finally collecting and drying to obtain bismuth oxychloride single crystal nanosheets.

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Abstract

The invention provides a method for preparing a BiOCl monocrystalline nano-chip with a solvent heat method. The preparation is carried out in a stainless steel high-pressure reactor consisting of a polytetrafluoroethylene liner (with the volume of 45ml) and a stainless steel jacket. The preparation is realized by the following technological processes: (1) placing raw materials including BiCl3 (with the purity not smaller than 99.1wt%) and KBH4 (with the purity not smaller than 98.0wt%) into 20-30ml of a mixed solution of deionized water and absolute alcohol, and stirring for reaction, wherein the molar ratio of BiCl3 to KBH4 is 3/5, and the mixed volume ratio of the deionized water to the absolute alcohol is 1/4-1/3; (2) then, pouring the mixed solution with the filling amount of 4/9-2/3 into the polytetrafluoroethylene liner, sleeving the stainless steel jacket, placing into an environment with the temperature of 160-200 DEG C, and preserving the temperature for 16-24 hours; and (3) finally, cooling the high-pressure reactor to room temperature, collecting a reaction product, cleaning, separating, and finally collecting and drying to obtain a BiOCl monocrystalline nano-chip. The BiOCl monocrystalline nano-chip synthesized with the method has the advantages of good dispersity, thin thickness, uniformity in size distribution and good color, and can be widely applied to the fields of coating, inorganic pigments, high-quality cosmetics, pearlescent accessories and the like. The method has the advantages of low raw material price and simple process, and is easy for large-scale industrial production.

Description

technical field [0001] The invention belongs to the field of nanometer material growth, and relates to a method for preparing bismuth oxychloride single crystal nanosheets. Background technique [0002] Oxyhalide bismuth oxychloride has a tetragonal pyroxenite structure with a band gap of 3.5eV, has excellent physical and chemical properties, and can be widely used in photocatalysts, ferroelectric materials, pigments, and photoluminescent materials. [0003] Scientific research in recent years has shown that bismuth oxychloride nanomaterials can show some excellent physical and chemical properties, and have important application value in the field of industrial technology. At present, there have been many reports on the growth of bismuth oxychloride nanostructures, some bismuth oxychloride nanostructures, including nanoparticles, nanofibers, two-dimensional nanodisks and three-dimensional layered structures, single crystal nanostructures, nanowire arrays, Mesoporous materia...

Claims

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Application Information

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IPC IPC(8): C30B29/10C30B7/10
Inventor 简基康宋春燕吴荣李锦孙言飞
Owner XINJIANG UNIVERSITY
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