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Preparation method of cuprous oxide nanospheres with monodisperse and uniform morphology

A cuprous oxide, monodisperse technology, applied in the direction of copper oxide/copper hydroxide, nanotechnology, nanotechnology, etc., to achieve the effect of low production cost, easy operation and good dispersion

Active Publication Date: 2020-08-11
合肥龙智机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] It can be seen that there have been reports on the preparation of cuprous oxide nanospheres with monodisperse and uniform morphology in the prior art, but the alkali sources added in the existing reports are mostly strong alkalis or organic alkaline solvents that rely on high temperatures, and a certain amount of Surfactant

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  • Preparation method of cuprous oxide nanospheres with monodisperse and uniform morphology

Examples

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Embodiment 1

[0020] Example 1: Preparation of monodisperse cuprous oxide nanospheres with uniform morphology according to the following steps

[0021] (1) At room temperature, configure CuSO with a concentration of 0.005mol / L 4 Aqueous solution; NaF, ascorbic acid and CuSO 4 The molar ratio of 3:2.5:1, to CuSO 4 Add NaF and ascorbic acid to the aqueous solution, stir to obtain a clear mixed solution, and set the stirring speed to 300 rpm;

[0022] (2) The above mixed solution was heated to a reaction temperature of 30°C and kept for 2 h, and then the obtained product was centrifuged, washed, and dried to obtain cuprous oxide nanospheres with monodisperse and uniform morphology.

Embodiment 2

[0023] Example 2: Preparation of monodisperse cuprous oxide nanospheres with uniform morphology according to the following steps

[0024] (1) At room temperature, configure CuSO with a concentration of 0.01mol / L 4 Aqueous solution; NaF, ascorbic acid and CuSO 4 The molar ratio of 4.5:2.5:1, to CuSO 4 Add NaF and ascorbic acid to the aqueous solution, stir to obtain a clear mixed solution, and set the stirring speed to 300 rpm;

[0025] (2) The above mixed solution was heated to a reaction temperature of 50°C and kept for 1.25 h, and then the obtained product was centrifuged, washed, and dried to obtain cuprous oxide nanospheres with monodisperse and uniform morphology.

Embodiment 3

[0026] Example 3: Preparation of monodisperse cuprous oxide nanospheres with uniform morphology according to the following steps

[0027] (1) At room temperature, configure CuSO with a concentration of 0.015 mol / L 4 Aqueous solution; NaF, ascorbic acid and CuSO 4 The molar ratio of 6:2.5:1, to CuSO 4 Add NaF and ascorbic acid to the aqueous solution, stir to obtain a clear mixed solution, and set the stirring speed to 300 rpm;

[0028] (2) After heating the above mixed solution to a reaction temperature of 70°C and keeping the reaction time for 0.5 h, the obtained product was centrifuged, washed and dried to obtain cuprous oxide nanospheres with monodisperse and uniform morphology.

[0029] The scanning electron microscope pictures of the monodisperse uniform shape cuprous oxide nanospheres of embodiment 1-3 gained are as follows figure 1 shown.

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Abstract

The invention discloses a method for preparing monodisperse uniform-morphology cuprous oxide nanospheres and belongs to the field of preparation of nanomaterials. The method comprises the steps of dissolving a certain amount of copper source CuSO4 and alkali source NaF into deionized water to form a mixed solution, then, adding a proper amount of reducer, i.e., ascorbic acid, carrying out a reaction for a period of time, and then, subjecting a product to centrifuging, washing and drying, thereby obtaining the monodisperse uniform-morphology cuprous oxide nanospheres. According to the method disclosed by the invention, strong alkali, an organic alkaline solvent and any surfactant are not required to be added, a high-temperature reactor is not required, and thus, the method has the characteristics of low cost, simplicity and easiness in operation, and the like; the prepared cuprous oxide nanospheres are uniform in morphology and good in dispersity.

Description

technical field [0001] The invention relates to the field of preparation of nanomaterials, in particular to a method of reducing CuSO with NaF as an alkali source and using ascorbic acid to reduce CuSO 4 A method for obtaining monodisperse cuprous oxide nanospheres with uniform morphology. Background technique [0002] Cuprous oxide, as an important class of p-type transition metal oxides, exhibits excellent physical and chemical properties in the fields of catalysis, gas sensing, and electricity, so it is widely used in important fields such as photocatalysts, gas sensing elements, and solar cells. field. [0003] The application performance of cuprous oxide is closely related to its morphology and structure. Cuprous oxide nanospheres with uniform morphology have attracted much attention from researchers because of their good shape integrity and high performance repeatability. The preparation of cuprous oxide nanospheres with uniform morphology has become a research hots...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G3/02B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G3/02C01P2004/32C01P2004/61
Inventor 程志鹏褚效中周翔仲慧殷竟洲戴本林赵伟徐继明张莉莉
Owner 合肥龙智机电科技有限公司