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Method for preparing cuprous oxide core-shell superstructure

A technology of cuprous oxide and superstructure, applied in the direction of copper oxide/copper hydroxide, nanotechnology for materials and surface science, nanotechnology, etc., to achieve the effect of simple equipment, cost reduction, and low density

Inactive Publication Date: 2016-08-24
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the micro-nano-scale cuprous oxide core-shell superstructure has rarely been reported.

Method used

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  • Method for preparing cuprous oxide core-shell superstructure
  • Method for preparing cuprous oxide core-shell superstructure

Examples

Experimental program
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Effect test

Embodiment 1

[0015] (1) Dissolve 0.05g of polyvinylpyrrolidone (PVP) and 0.5g of urea in 4.5mL of deionized water / 2.5mL of glycerin to obtain solution A. Solution B was obtained by dissolving 2.5 mmol of copper chloride dihydrate (0.4262 g) in 2.5 mL of deionized water. Dissolve 0.5mmol ascorbic acid (0.0189g) in 2.5mL deionized water to obtain solution C;

[0016] (2) First drop solution B into solution A drop by drop while stirring at room temperature, after stirring evenly, drop solution C into the above mixed solution under strong stirring conditions, and pour the mixture into 50mL poly Hydrothermal reaction was carried out at 170°C for 16 hours in a tetrafluoroethylene autoclave.

[0017] (3) After the reaction, the obtained brick-red precipitate was taken out, then alternately centrifugally washed with distilled water and absolute ethanol, and then dried in a vacuum oven at 60° C. to obtain a cuprous oxide core-shell superstructure. The core-shell superstructure of the prepared cup...

Embodiment 2

[0019] (1) Dissolve 0.05g of polyvinylpyrrolidone (PVP) and 0.5g of urea in 4.5mL of deionized water / 2.5mL of glycerin to obtain solution A. Solution B was obtained by dissolving 2.5 mmol of copper sulfate pentahydrate (0.6242 g) in 2.5 mL of deionized water. Dissolve 0.5mmol ascorbic acid (0.0189g) in 2.5mL deionized water to obtain solution C;

[0020] (2) First drop solution B into solution A drop by drop while stirring at room temperature, after stirring evenly, drop solution C into the above mixed solution under strong stirring conditions, and pour the mixture into 50mL poly Hydrothermal reaction was carried out at 170°C for 16 hours in a tetrafluoroethylene autoclave.

[0021] (3) After the reaction, the obtained brick-red precipitate was taken out, then alternately centrifugally washed with distilled water and absolute ethanol, and then dried in a vacuum oven at 60° C. to obtain a cuprous oxide core-shell superstructure. The core-shell superstructure particle size is ...

Embodiment 3

[0023] (1) Dissolve 0.05g of polyvinylpyrrolidone (PVP) and 0.5g of urea in 4.5mL of deionized water / 2.5mL of glycerin to obtain solution A. Solution B was obtained by dissolving 2.5 mmol of copper acetate monohydrate (0.4991 g) in 2.5 mL of deionized water. Dissolve 0.5mmol ascorbic acid (0.0189g) in 2.5mL deionized water to obtain solution C;

[0024] (2) First drop solution B into solution A drop by drop while stirring at room temperature, after stirring evenly, drop solution C into the above mixed solution under strong stirring conditions, and pour the mixture into 50mL poly Hydrothermal reaction was carried out at 170°C for 16 hours in a tetrafluoroethylene autoclave.

[0025] (3) After the reaction, the obtained brick-red precipitate was taken out, then alternately centrifugally washed with distilled water and absolute ethanol, and then dried in a vacuum oven at 60° C. to obtain a cuprous oxide core-shell superstructure. The core-shell superstructure particle size is 3...

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Abstract

The invention discloses a method for preparing a cuprous oxide core-shell superstructure. The method is completed by the following steps: taking a copper salt, ascorbic acid, polyvinylpyrrolidone and urine as raw materials, taking distilled water / glycerin as a solvent, reacting at normal temperature for 12-24 hours, and centrifuging, washing and drying the obtained brick-red precipitate, thereby obtaining the layered flower-shaped cuprous oxide nanometer material. According to the method, the used raw materials such as the copper salt, ascorbic acid, glycerin, polyvinylpyrrolidone, urine and the like are low in price and readily available, the cost is reduced, and the operation steps are simplified. Meanwhile, the cuprous oxide nanosphere prepared by the invention has extremely large specific surface area and has potential application value in the aspects such as photocatalytic degradation dyes, gas sensing, energy storage, lithium batteries and the like.

Description

technical field [0001] The invention relates to a method for preparing cuprous oxide, in particular to a method for preparing a cuprous oxide core-shell superstructure. Background technique [0002] As an important p-type semiconductor material, cuprous oxide has a band gap of 2.0-2.2ev, and is one of the few semiconductor materials that can be excited by visible light. It has broad application prospects in photocatalysis, solar cells, sensors, lithium-ion batteries, and magnetic storage. At the same time, cuprous oxide is also an important industrial raw material, which has extensive and important uses in shipbuilding, water treatment, electronics and other industries, as well as in agricultural production. Due to Cu 2 The morphology and structure of O greatly affect its physical and chemical properties. Therefore, the synthesis of micro-nano Cu with controllable morphology and structure 2 O has become a research focus and focus. At present, there have been many studies...

Claims

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Application Information

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IPC IPC(8): C01G3/02B82Y30/00B82Y40/00
Inventor 储德清孙慧娄杨路峰
Owner TIANJIN POLYTECHNIC UNIV
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