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Method for preparing nanometer copper sulfide hollow balls with photo-amplitude limiting property

A technology of hollow spheres and copper sulfide, which is applied in the direction of copper sulfide, can solve the problems of photoelectric sensors and equipment damage, and achieve the effects of easy batch synthesis, easy control, and high yield

Inactive Publication Date: 2006-04-12
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The development of modern laser technology has made laser widely used in the fields of ranging, radar, guidance and communication, but it is easy to cause damage to the human eye and photoelectric sensors and equipment in the system

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Sodium dodecyl sulfate (SDS) is used as surfactant to prepare microemulsion, n-octanol is used as co-surfactant to promote sodium dodecyl sulfate to form stable spherical micelles, and thioacetamide (CH 3 CSNH 2 ) as the sulfur source of inorganic functional nanomaterial copper sulfide, copper sulfate (CuSO 4 ) is a copper source, the amount of which is 2mmol / L. First prepare a certain concentration of sodium dodecyl sulfate microemulsion, wherein the surfactant SDS: co-surfactant n-octanol: water volume ratio is 3: 1: 10, then add copper sulfate and thioacetamide to the solution , stirring to prepare a suspension, and the stirring method can be one of ultrasonic method or high shear emulsification method. The suspension was then kept at room temperature for 24 h. Then wash with distilled water and filter with suction. Dry in a vacuum drying oven at 60-100°C for 3 hours to obtain a copper sulfide hollow nanosphere structure with a single particle size of about 20nm,...

Embodiment 2

[0024] Sodium dodecyl sulfate (SDS) is used as surfactant to prepare microemulsion, n-octanol is used as co-surfactant to promote sodium dodecyl sulfate to form stable spherical micelles, and thioacetamide (CH 3 CSNH 2 ) as the sulfur source of inorganic functional nanomaterial copper sulfide, copper sulfate (CuSO 4 ) is a copper source, the amount of which is 5mmol / L. First prepare a certain concentration of sodium dodecyl sulfate microemulsion, wherein the surfactant SDS: co-surfactant n-octanol: water volume ratio is 3: 1: 10, then add copper sulfate and thioacetamide to the solution , stirring to prepare a suspension, and the stirring method can be one of ultrasonic method or high shear emulsification method. The suspension was then warmed to 40 °C for 6 h. Then cool to room temperature, wash with distilled water, and filter with suction. Dry in a vacuum drying oven at 60-100°C for 3 hours to obtain a copper sulfide hollow nanosphere structure with a single particle si...

Embodiment 3

[0026] Sodium dodecyl sulfate (SDS) is used as surfactant to prepare microemulsion, n-octanol is used as co-surfactant to promote sodium dodecyl sulfate to form stable spherical micelles, and thioacetamide (CH 3 CSNH 2 ) as the sulfur source of inorganic functional nanomaterial copper sulfide, copper sulfate (CuSO 4 ) is a copper source, the amount of which is 10mmol / L. First prepare surfactant SDS: co-surfactant n-octanol: sodium lauryl sulfate microemulsion with a water volume ratio of 5: 1: 10, use ammonia water to adjust the pH value of the microemulsion within the scope of 8.0 ± 0.5, and then Add copper sulfate and thioacetamide to the solution, and stir to prepare a suspension. The stirring method can be one of ultrasonic method or high-shear emulsification method. The suspension was then warmed to 60 °C for 10 h. Then cool to room temperature, wash with distilled water, and filter with suction. After drying in a vacuum drying oven at 60-100°C for 3 hours, a copper s...

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Abstract

A process for preparing the hollow copper sulfide nano-balls with optical clipping performance features that the binding of surfactant micelles is used, the resultant ammonia gas is used to form nucleating center, and the simple soft template synthesis method is used. It can be used in military, laser and microelectronic fields.

Description

technical field [0001] The invention relates to a preparation method of copper sulfide nano hollow spheres with optical limiting performance, and relates to functional materials and military laser protection materials. Background technique [0002] The preparation, size and shape control, and property research of semiconductor nanomaterials have always been hot spots in material science research. People expect to achieve the purpose of regulating material properties by controlling the size and shape of materials. In 1997, the Bawendi research group reported that the size of CdSe / ZnS quantum dots was adjusted to control its luminescence characteristics. The particle size of quantum dots increased from 2.3nm to 5.5nm, and its luminescence changed from blue light to red light, and the room temperature quantum yield Available up to 30-50%. In 1999, H.Cao et al. obtained the lasing phenomenon of ZnO at room temperature on the ITO glass deposited with ZnO nanopowder. The generati...

Claims

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Application Information

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IPC IPC(8): C01G3/12
Inventor 曹传宝于雪莲
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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