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Method for preparing copper sulfide hollow sphere

A technology of hollow spheres and copper sulfide, applied in the direction of copper sulfide, microsphere preparation, microcapsule preparation, etc., can solve the problems of difficult popularization and use, high equipment requirements, cumbersome process, etc., and achieve high yield, uniform wall thickness, The effect of simple process

Inactive Publication Date: 2007-10-17
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods are cumbersome and have high requirements for equipment, so it is difficult to promote and use them in industrial production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Weigh 0.012g of copper sulfate and 0.05g of polyvinylpyrrolidone (PVP) and dissolve in 50ml of distilled water to form a clear solution. Under the condition of stirring, 2 ml of 0.1M hydrazine hydrate was added to the above clear solution and reacted for 15 minutes to obtain an orange-yellow suspension. Under the condition of stirring, 0.02 g of thioacetamide was added to the above orange-yellow suspension, and the reaction temperature was controlled at 40° C. for 1 hour. After separation and washing, a black powdery product was obtained. The product was identified as copper sulfide by X-ray diffraction analysis; it was hollow sphere by transmission electron microscope analysis, with a particle size of about 200-250nm and a shell thickness of about 40nm.

Embodiment 2

[0019] Weigh 0.05 g of copper sulfate and 0.2 g of polyvinylpyrrolidone (PVP) and dissolve them in 50 ml of distilled water to form a clear solution. Under the condition of stirring, 8 ml of 0.1M hydrazine hydrate was added to the above clear solution, and reacted for 30 minutes to obtain an orange-yellow suspension. Under the condition of stirring, 0.08 g of thioacetamide was added to the above orange-yellow suspension, and the reaction temperature was controlled at 70° C. for 12 hours. Copper sulfide hollow spheres with a particle size of about 600-750nm and a shell thickness of about 80nm are obtained after separation and washing.

Embodiment 3

[0021] Weigh 0.025g of copper sulfate and dissolve in 50ml of distilled water to form a clear solution. Under the condition of stirring, 4 ml of 0.1M hydrazine hydrate was added to the above clear solution and reacted for 20 minutes to obtain an orange-yellow suspension. Under the condition of stirring, 0.08 g of thioacetamide was added to the above orange-yellow suspension, and the reaction temperature was controlled at 50° C. for 6 hours. Copper sulfide hollow spheres with a particle diameter of about 400-550nm and a shell thickness of about 60nm are obtained after separation and washing.

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PUM

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Abstract

The invention relates to a method for the preparation of CuS hollow balls in the field of inorganic materials and functional materials processing. First, a certain amount of soluble cupric salt and PVP are dissolved in the water for form clear solution, which is then added in with a certain amount of reductant to produce yellow suspending solution, and then added in with a certain amount of S source substance, reacting at the temperature of 10-90 degree for 10min to 24h to produce CuS hollow balls. The invention is characterized in soft preparation conditions, simple processing, low cost, high yield etc., which is good for industrialization production and the produced product is characterized in good dispersibility, uniform wall thickness, superior performances to the present products and wide application foreground.

Description

Technical field: [0001] The invention relates to a method for preparing copper sulfide hollow spheres, and belongs to the technical field of preparation technology of inorganic materials and functional materials. technical background: [0002] Hollow spheres refer to a class of materials with special structures ranging in size from nanometers to micrometers. Because this kind of material has the characteristics of low density, large specific surface area, good stability and surface permeability, it has important applications in the fields of chemistry, biology and material science. Hollow spherical shells and stacked hollow spherical shells Porous materials have great potential application value in the field of catalysis, the packaging of slow-release drugs, the simulation of artificial cells, the coating and protection of biologically active molecules such as proteins, enzymes, and DNA, and as fillers or pigments for coatings. , has become one of the eye-catching direction...

Claims

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Application Information

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IPC IPC(8): C01G3/12B01J13/02
Inventor 朱海涛王继鑫张灿英
Owner QINGDAO UNIV OF SCI & TECH
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