Method for preparing monodispersed copper-protoxide hollow microsphere by aqueous phase cluster soft mold plates process

A technology of cuprous oxide and soft template method, which is applied in the direction of copper oxide/copper hydroxide, nanostructure manufacturing, nanotechnology, etc., can solve the problems of wide particle size distribution, poor structural stability, unfavorable mass production, etc., to achieve Convenient condition control, low cost, easy operation and repeatable effect

Inactive Publication Date: 2007-09-26
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

Liu Hongjiang et al. have reported the use of O / W / O multiple microemulsions as templates to prepare cuprous oxide hollow microspheres (particle size 600-1200nm), but the structural stability of O / W / O multiple microemulsions is poor, and it is necessary to use Microwave heating is not conducive to large-scale production, and the particle size distribution of the prepared particles is wide
There is no report on the preparation of monodisperse cuprous oxide hollow submicrospheres by the aqueous phase cluster soft template method at home and abroad

Method used

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  • Method for preparing monodispersed copper-protoxide hollow microsphere by aqueous phase cluster soft mold plates process
  • Method for preparing monodispersed copper-protoxide hollow microsphere by aqueous phase cluster soft mold plates process
  • Method for preparing monodispersed copper-protoxide hollow microsphere by aqueous phase cluster soft mold plates process

Examples

Experimental program
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Effect test

Embodiment 1

[0020] 1) Add a certain amount of polyvinylpyrrolidone and sodium lauryl sulfate into deionized water, heat to 40-60°C to fully dissolve and self-assemble into clusters, and mix with copper sulfate aqueous solution after the solution is cooled to room temperature , so that the final concentration of each component in the solution is respectively: copper sulfate 1mmol / L, polyvinylpyrrolidone 10g / L, sodium lauryl sulfate 9mmol / L;

[0021] 2) adjusting the pH value of the mixed solution obtained in step 1) with an aqueous sodium hydroxide solution to 8.5 to 11.5;

[0022] 3) During stirring, a 50% aqueous solution of hydrazine hydrate is added to the mixed solution obtained in step 2), and the molar ratio of copper sulfate to hydrazine hydrate is 1:20. After uniform mixing, stand still in a constant temperature water bath at 40-60°C to react for 55 minutes to obtain a colloidal solution containing monodisperse cuprous oxide hollow submicrospheres;

[0023] 4) Centrifuge the coll...

Embodiment 2

[0026] 1) Add a certain amount of polyvinylpyrrolidone and sodium lauryl sulfate into deionized water, heat to 40-60°C to fully dissolve and self-assemble into clusters, and mix with copper chloride aqueous solution after the solution is cooled to room temperature Mix so that the final concentration of each component in the solution is respectively: copper chloride 1mmol / L, polyvinylpyrrolidone 10g / L, sodium lauryl sulfate 35mmol / L;

[0027] 2) adjusting the pH value of the mixed solution obtained in step 1) with an aqueous sodium hydroxide solution to 8.5 to 11.5;

[0028] 3) During stirring, a 50% aqueous solution of hydrazine hydrate is added to the mixed solution obtained in step 2), and the molar ratio of copper sulfate to hydrazine hydrate is 1:20. After uniform mixing, stand still in a constant temperature water bath at 40-60°C to react for 55 minutes to obtain a colloidal solution containing monodisperse cuprous oxide hollow submicrospheres;

[0029] 4) Centrifuge the...

Embodiment 3

[0032] 1) Add a certain amount of polyvinylpyrrolidone and sodium lauryl sulfate into deionized water, heat to 40-60°C to fully dissolve and self-assemble into clusters, and mix with copper sulfate aqueous solution after the solution is cooled to room temperature , so that the final concentration of each component in the solution is respectively: copper sulfate 5mmol / L, polyvinylpyrrolidone 2g / L, sodium lauryl sulfate 9mmol / L;

[0033] 2) adjusting the pH value of the mixed solution obtained in step 1) with an aqueous sodium hydroxide solution to 8.5 to 11.5;

[0034] 3) During stirring, a 50% aqueous solution of hydrazine hydrate is added to the mixed solution obtained in step 2), and the molar ratio of copper sulfate to hydrazine hydrate is 1:20. After uniform mixing, stand still in a constant temperature water bath at 40-60°C to react for 55 minutes to obtain a colloidal solution containing monodisperse cuprous oxide hollow submicrospheres;

[0035] 4) Centrifuge the collo...

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Abstract

The invention discloses a preparing method of monodisperse cuprous oxide hollow submicroballoon with aqueous phase cluster soft mold plates method in preparing technical domain of inorganic functional material, which comprises the following steps: forming cluster with polyvinyl pyrrolidon and dodecyl sodium sulfate; setting the cluster as soft mold plate; mixing water solution of nantokite with water solution of cluster soft mold plate; adjusting pH value; using hydrazine hydrate as reducer; deacidizing copper ion quickly; getting copper-protoxide hollow submicroballoon colloidal solution; making the soft mold plate with the function of controlling outlook and size of particle during reacting course; whizzing; depositing; washing with deionized water and absolute ethyl alcohol; getting copper-protoxide nanometer particle with grain diameter at 11-22 nm; self-assembling; forming monodisperse cuprous oxide hollow submicroballoon with diameter of particle at 400-550 nm.

Description

technical field [0001] The invention relates to a method for preparing monodisperse cuprous oxide hollow submicrospheres through a water-phase cluster soft template method, and belongs to the technical field of preparation of inorganic functional materials. Background technique [0002] Nano / micro-scale inorganic oxide hollow spheres have extremely broad application prospects due to their low density, large specific surface area, and high thermodynamic stability. They can not only be used as lightweight fillers, highly selective catalysts or catalyst supports, but also widely used as microcapsule materials in the controlled transport and release systems of drugs, dyes, cosmetics, sensitive reagents such as enzymes and proteins, and in Artificial cells, disease diagnosis, environmental protection and other fields also have extremely important application value. Cuprous oxide is a P-type semiconductor with special optical, photoelectric and catalytic properties. It can be use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/02B82B3/00
Inventor 方云夏咏梅陈方博
Owner JIANGNAN UNIV
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