Preparation method of particle size controllable cuprous oxide micro-spheres

A cuprous oxide and microsphere technology, applied in copper oxide/copper hydroxide and other directions, can solve the problems of large number of surfactants, doubts about safety impact, limited control range, etc., and achieve low prices, less environmental pollution, and reagents. safe effect

Inactive Publication Date: 2014-05-07
SHANDONG UNIV OF TECH
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Problems solved by technology

The reported preparation method of spherical cuprous oxide adds a large amount of surfactants, and the safety impact of these surfactants on the environment has been questioned, which is not conducive to large-scale safe production
In addition, although the particle size can be adjusted, the range of adjustment is limited.
Generally speaking, the size of the particles is mainly regulated by the concentration of the reaction substance. When the concentration is high, cuprous oxide with a small size can

Method used

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  • Preparation method of particle size controllable cuprous oxide micro-spheres
  • Preparation method of particle size controllable cuprous oxide micro-spheres

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Embodiment 1

[0016] (1) Prepare 50 ml of an aqueous solution containing citric acid and calcium hydroxide, the concentrations of which are 0.095 mol per liter and 0.68 mol per liter, respectively, and stir to obtain a uniform suspension, then the aqueous solution containing 0.44 mol per liter of phosphoric acid is added one by one. Add dropwise, stop dropping when the pH value of the suspension drops to 10, wash with 50 ml of ammonium chloride solution with a mass fraction of 4% after standing for 18 hours, and prepare the hydroxyapatite colloid obtained by centrifugation into 100. ml of aqueous solution;

[0017] (2) adding copper sulfate to the hydroxyapatite colloidal solution prepared in step (1) to make the initial concentration of copper ions be 0.10 moles per liter, and stirring for 12 hours;

[0018] (3) Glucose, sodium carbonate and trisodium citrate were sequentially added to the solution prepared in step (2), the concentrations were 0.36, 0.11 and 0.016 mol per liter, respective...

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Abstract

The invention provides a preparation method of particle size controllable cuprous oxide micro-spheres, and belongs to the technical field of preparation of inorganic functional materials. The preparation method is characterized by comprising the following steps of: preparing an aqueous solution containing citrate ions and calcium hydroxide; agitating to obtain uniform suspension; adding phosphoric acid containing aqueous solution by drops; stopping dropping until the pH of the suspension is lowered down to reach 10; standing; washing with an ammonium chloride aqueous solution; preparing another aqueous solution through centrifugally separated hydroxyapatite colloid; adding copper sulfate; agitating to react for 12 hours; then adding glucose, sodium carbonate and trisodium citrate in sequence; reacting for 12 hours under the temperature of 95 DEG C; filtering; washing; drying to obtain the cuprous oxide micro-spheres. The preparation method has the advantages that the process is simple, the reaction temperature is low, the chemical agents adopted are safe, and the size of the cuprous oxide micro-spheres is conveniently controlled, and ranges from 0.5 to 10 microns.

Description

technical field [0001] The invention relates to a method for preparing cuprous oxide microspheres with adjustable particle size, and belongs to the technical field of preparation of inorganic functional materials. Background technique [0002] As a semiconductor material, cuprous oxide particles are widely used in the fields of photocatalysis, solar cells and electrolyte materials. For functional components prepared from cuprous oxide, the shape and size of cuprous oxide have a great influence on the components. The optimization of physical properties such as fabrication and its optical, electrical and optoelectronic properties has a significant impact. In the process of device preparation, the flow, accumulation and dispersion of particles are restricted by particle shape, while the particle size affects the surface properties of cuprous oxide, which in turn affects the realization of the physical properties of components, including optical, electrical and photoelectric. C...

Claims

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Application Information

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IPC IPC(8): C01G3/02
Inventor 李成峰高月明葛筱璐李国昌杜庆洋
Owner SHANDONG UNIV OF TECH
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