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Method for synthesizing micron-nano-sized cuprous oxide micropowder by controlling shape of micron-nano-sized cuprous oxide micropowder

A technology of cuprous oxide and a synthesis method, applied in the field of micro-nano materials, can solve the problems of low concentration, uneconomical industrial application, etc., and achieve the effects of low reaction temperature, convenience for large-scale synthesis, and energy saving

Inactive Publication Date: 2011-08-03
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is relatively simple and easy to control the morphology, and no other additives are used, but the concentration of the synthesis is relatively low, which is uneconomical in industrial applications

Method used

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  • Method for synthesizing micron-nano-sized cuprous oxide micropowder by controlling shape of micron-nano-sized cuprous oxide micropowder
  • Method for synthesizing micron-nano-sized cuprous oxide micropowder by controlling shape of micron-nano-sized cuprous oxide micropowder
  • Method for synthesizing micron-nano-sized cuprous oxide micropowder by controlling shape of micron-nano-sized cuprous oxide micropowder

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Get 10g copper sulfate pentahydrate (CuSO 4 ·5H 2 O, A) Place in a 500ml reaction kettle, then add 100ml of distilled water (B), and mechanically stir at 70°C (C) until the copper sulfate pentahydrate is completely dissolved. Then the NaOH solution obtained by dissolving 4.3g of sodium hydroxide (NaOH, D) in 100ml of distilled water (E) was completely poured into the reaction kettle, and the reaction was vigorously stirred at 70° C. (F) for 1 hour (G). Then add 100ml (H) of 0.2mol / L (K) glucose (C6H12O6) solution into the reaction kettle at a rate of 2ml / min (M). After adding it completely, continue to stir and react for 20 minutes (N). The resulting precipitate was filtered, washed three times with distilled water and once with ethanol, and dried in a vacuum oven at 50° C. to obtain powder of cuprous oxide particles. Its morphology was observed by SEM (attached figure 1 ), whose shape is eight-vertex star cuprous oxide, well dispersed. attached figure 2 is the XR...

Embodiment 2 8

[0027] Carry out operation according to embodiment one, wherein usage amount, time and temperature reaction parameter are carried out as follows. The XRD analysis results are all cubic cuprous oxide.

[0028]

[0029] Note: OS: octagonal star; SP: square porous; S1: diamond star; S2: decahedron.

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Abstract

The invention discloses a method for synthesizing micron-nano-sized cuprous oxide micropowder. The method comprises the following steps of: reducing copper sulfate into cuprous oxide under a sodium hydroxide alkaline condition by using glucose as a reducing agent, namely mixing copper sulfate solution and sodium hydroxide solution and reacting for a certain time at a certain temperature and adding the glucose serving as the reducing agent to obtain cuprous oxide powder with a certain shape. The shape and the size of the product, namely the cuprous oxide, can be stably and simply controlled by controlling the mixing and reacting temperature and time.

Description

technical field [0001] The present invention relates to a method for preparing cuprous oxide micropowder with controlled synthesis of a large amount of specific morphology. Further, the method utilizes copper salt to reduce cuprous oxide with a reducing agent under alkaline conditions, and does not require any surfactant or additive during the process. It belongs to the field of micro-nano materials. Background technique [0002] Cu 2 O is a very important p-type semiconductor metal oxide with a narrow bandgap of 2.0eV. It has a wide range of applications in the fields of photocatalysis, new solar cells, magnetic storage devices, biosensing and coatings. Therefore, the preparation of cuprous oxide particles with specific morphology has broad market prospects and specific value. [0003] At present, the shapes of cuprous oxide micro-nano particles mainly include square, regular octahedron, polyhedron with twelve faces, polyhedron with fourteen faces, and spherical shape. ...

Claims

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Application Information

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IPC IPC(8): C01G3/02B82Y40/00
Inventor 白志平吴有庭王栋唐乐吕晓华
Owner NANJING UNIV
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