Technology for preparing micro-nano cuprous oxide hollow polyhedrons through reduction method

A cuprous oxide, micro-nano technology, applied in the field of nano-materials, can solve the problems of long time-consuming oxidation and etching, damage to material structure, poor effect, etc., and achieve the effect of clear outline, good dispersion, and no need for etchant

Inactive Publication Date: 2016-02-10
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the material structure will be destroyed in the process of removing the template, and the effect is poor; another example, the oxidation etching takes too long and the efficiency is low

Method used

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  • Technology for preparing micro-nano cuprous oxide hollow polyhedrons through reduction method
  • Technology for preparing micro-nano cuprous oxide hollow polyhedrons through reduction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Step (1): Add 1 mL of CuCl to 16.24 mL of deionized water successively 2 solution (0.1mol / L), 174mgSDS, 0.36mLNaOH solution (1mol / L) and 2.4mLNH 2 OH·HCl solution (0.1mol / L);

[0023] Step (2): Stir the above mixed solution magnetically at room temperature for 1 h;

[0024] Step (3): The above reaction liquid is centrifuged and vacuum-dried at low temperature to obtain hollow polyhedrons of micronano cuprous oxide.

Embodiment 2

[0026] Step (1): Add 1 mL of CuCl to 16.24 mL of deionized water successively 2 Solution (0.1mol / L), 174mgSDS, 2.4mLNH 2 OH·HCl solution (0.1mol / L) and 0.36mL NaOH solution (1mol / L);

[0027] Step (2): Stir the above mixed solution magnetically at room temperature for 1 h;

[0028] Step (3): The above reaction liquid is centrifuged and vacuum-dried at low temperature to obtain hollow polyhedrons of micronano cuprous oxide.

Embodiment 3

[0030] Step (1): Add 1 mL of CuCl to 16.24 mL of deionized water successively 2 solution (0.1mol / L), 174mgSDS, 0.36mLNaOH solution (1mol / L) and 2.4mLNH 2 OH·HCl solution (0.1mol / L);

[0031] Step (2): Stir the above mixed solution magnetically at room temperature for 1 h;

[0032] Step (3): The above reaction liquid is centrifuged and vacuum-dried at low temperature to obtain hollow polyhedrons of micronano cuprous oxide.

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Abstract

The invention discloses a technology for preparing micro-nano cuprous oxide hollow polyhedrons through a reduction method on the condition that a template, an etching agent and high temperature are not needed. The technology comprises the steps that a prepared CuCl2 solution is added into a sodium dodecyl sulfate (SDS) aqueous solution prepared in advance, and a mixed solution is magnetically stirred to be uniform; a prepared NaOH solution is dropwise added into the mixed solution, and a mixed solution is magnetically stirred to be uniform; a prepared hydroxylamine hydrochloride (NH2OH.HCL) solution is quickly added into the mixed solution, magnetic stirring is performed at room temperature for 1 h, and then the micro-nano (about 400 nm) cuprous oxide hollow polyhedrons are obtained. Through reasonable technology control, preparation of the cuprous oxide hollow polyhedrons which are clear in outline, uniform in particle and good in dispersion is achieved. Compared with a traditional preparation method, the technology has the advantages that the template, the etching agent and the high temperature are not needed, simpleness and high efficiency are achieved, and the physical and chemical properties of the product are excellent and can be applied to the fields of gas sensing and photocatalysis.

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to a process for preparing micro-nano cuprous oxide hollow polyhedrons by a reduction method without templates, etchant and high temperature. Background technique [0002] Cuprous oxide (Cu 2 O) is a P-type semiconductor with a forbidden band width of 2.17eV. It has a unique cuprite structure, that is, oxygen atoms are stacked in body-centered cubics, copper atoms are stacked in face-centered cubics, and copper atoms occupy the regular tetrahedral gaps composed of oxygen atoms. In recent years, there has been growing interest in the synthesis of cuprous oxide micro / nanostructures, not only because of the development of synthetic methods, but also because of the development of studies on the sensing, electrical, catalytic and surface properties of cuprous oxide. Cuprous oxide micro-nano crystals are relatively easy to prepare, and the copper source is abundant and the synthes...

Claims

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Application Information

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IPC IPC(8): C01G3/02
CPCC01G3/02C01P2004/03C01P2004/04C01P2004/62
Inventor 曾文李天明陈林王晨曦龙晖午
Owner CHONGQING UNIV
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