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Solid-phase method for preparing tin oxide-tin sulfide heterojunction nanoflowers

A solid-phase preparation and tin oxide technology, applied in tin oxide, chemical instruments and methods, nanotechnology, etc., can solve the problems of high energy consumption, harsh experimental conditions, etc., and achieve the effects of simple operation, low cost, and simple synthesis process

Inactive Publication Date: 2019-09-20
XINJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, the methods for preparing tin sulfide-based composites include hydrothermal method and microwave method, etc. However, these methods involve harsh experimental conditions and high energy consumption, so it is still very urgent to develop a simple, high-yield, and environmentally friendly synthesis method

Method used

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  • Solid-phase method for preparing tin oxide-tin sulfide heterojunction nanoflowers

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specific Embodiment approach 1

[0015] Specific implementation method 1: Accurately weigh 0.01 mol tin tetrachloride pentahydrate and place it in an agate mortar, grind it thoroughly, add 0.005 mol sodium lauryl sulfate, grind for 60 minutes and mix well, then add 0.002 mol thiosulfate Acetamide, grind for 60 minutes and mix well, then add 0.036 mol sodium hydroxide, then grind it thoroughly for 60 minutes and leave it for 3 hours to ensure that the solid phase reaction is complete. Wash it with deionized water and absolute ethanol, filter it with suction, and dry it in a drying oven at 60°C for 2 hours to obtain a tin oxide-tin sulfide heterojunction.

specific Embodiment approach 2

[0016] Specific embodiment 2: Accurately weigh 0.01 mol tin tetrachloride pentahydrate and place it in an agate mortar, grind it thoroughly, add 0.005 mol sodium lauryl sulfate, grind for 60 minutes and mix well, then add 0.006 mol thiosulfate Acetamide, grind for 60 minutes and mix well, then add 0.028 mol sodium hydroxide, then grind it thoroughly for 60 minutes and leave it for 3 hours to ensure that the solid phase reaction is complete. Wash it with deionized water and absolute ethanol, filter it with suction, and dry it in a drying oven at 60°C for 2 hours to obtain a tin oxide-tin sulfide heterojunction.

specific Embodiment approach 3

[0017] Specific embodiment 3: Accurately weigh 0.01 mol tin tetrachloride pentahydrate and place it in an agate mortar, grind it thoroughly, add 0.005 mol sodium lauryl sulfate, grind for 60 minutes and mix well, then add 0.010 mol thiosulfate Acetamide, grind for 60 minutes and mix well, then add 0.020 mol sodium hydroxide, then grind it thoroughly for 60 minutes and leave it for 3 hours to ensure that the solid phase reaction is complete. Wash it with deionized water and absolute ethanol, filter it with suction, and dry it in a drying oven at 60°C for 2 hours to obtain a tin oxide-tin sulfide heterojunction.

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Abstract

The invention relates to a solid-phase method for preparing tin oxide-tin sulfide heterojunction nanoflowers, and belongs to the field of nano material preparation. The preparation method comprises the following steps: (1) putting stannic chloride into an agate mortar; (2) carrying out grinding, and then adding lauryl sodium sulfate; (3) carrying out grinding, and then adding thioacetamide; and (4) carrying out grinding, then adding sodium hydroxide, fully carrying out grinding, carrying out standing to complete a solid-phase reaction, carrying out washing with deionized water and absolute ethyl alcohol, carrying out suction filtration, and carrying out drying in a drying oven at 60 DEG C for 2 hours to prepare the tin oxide-tin sulfide heterojunction nanoflowers. The solid-phase chemical method for preparing the tin oxide-tin sulfide heterojunction nanoflowers has the advantages that the operation is simple, no solvent is used, the yield is high, cost is low, the synthesis process is simple and the like, and a high yield of the product is ensured. Moreover, characteristics of the sodium dodecyl sulfate surfactant are utilized, so that the product has relatively good dispersity; and meanwhile, interaction between tin oxide and tin sulfide is enhanced, so that the prepared tin oxide-tin sulfide heterojunction nanoflowers have a large specific surface area and high reaction activity, and have a potential application prospect in the fields of photoelectric devices, photocatalysis and the like.

Description

technical field [0001] The invention relates to a method for preparing tin oxide-tin sulfide heterojunction nanoflowers in solid phase, and belongs to the field of nanomaterial preparation. Background technique [0002] In recent years, nanomaterials have attracted extensive attention of researchers because of their unique physical and chemical properties. As a very important semiconductor nanomaterial, tin sulfide has great application prospects in the fields of semiconductor light-emitting devices, nonlinear optical materials, and photocatalysis because of its specific optical, electrical, thermal, and magnetic properties. However, its photogenerated electrons and holes recombine quickly, so it needs to be modified. [0003] Utilizing the energy band structure of tin oxide and tin sulfide, combining them can effectively improve the catalytic activity of tin sulfide. Three-dimensional nanoflowers are significantly different from nanopowders. They not only have special pro...

Claims

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Application Information

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IPC IPC(8): C01G19/02C01G19/00B82Y40/00B82Y30/00
CPCB82Y30/00B82Y40/00C01G19/00C01G19/02C01P2004/30C01P2004/80
Inventor 陈凤娟赵文博贾殿赠金学坤
Owner XINJIANG UNIVERSITY
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