Copper oxide micro-nano composite structural material and preparation method thereof

A composite structure, micro-nano technology, applied in copper oxide/copper hydroxide, nanotechnology and other directions, can solve problems such as being unsuitable for large-scale application, complex synthesis process, expensive reaction equipment, etc., and is conducive to large-scale popularization and application, The effect of low preparation cost and significant production practical significance

Inactive Publication Date: 2012-06-13
TIANJIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Common methods for synthesizing CuO include pyrolysis / dehydration, electrodeposition, gas-solid phase reaction, and sonochemical synthesis, etc., but these methods are not suitable due to the disadvantages of high temperature, long reaction time, expensive reaction equipment or complex synthesis process. large scale application

Method used

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  • Copper oxide micro-nano composite structural material and preparation method thereof
  • Copper oxide micro-nano composite structural material and preparation method thereof
  • Copper oxide micro-nano composite structural material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing a copper oxide microsphere material with a nanosheet secondary structure, comprising the following steps:

[0027] 1) 0.6g copper chloride (CuCl 2 2H 2 O) be dissolved in 5mL deionized water under stirring, then under magnetic stirring, 15mL of mass percentage concentration is 25% ammoniacal liquor, 1.5g solid sodium hydroxide and 0.61g sodium dodecylbenzenesulfonate are added successively to the above-mentioned solution, and then continue to stir for 15 minutes to generate blue tetraammine copper [Cu(NH 3 ) 4 ] 2+ Complex cations and copper tetrahydroxide [Cu(OH) 4 ] 2- With anion mixture;

[0028] 2) Transfer the above mixed solution into a stainless steel reaction kettle with polytetrafluoroethylene lining. The volume of the reaction kettle is 25mL. After sealing, place the reaction kettle in a constant temperature drying oven at 180°C and heat for 8 hours to obtain a black product;

[0029] 3) Naturally cool the reactor to room temperat...

Embodiment 2

[0034] A preparation method of copper oxide nano sheet material, comprising the following steps:

[0035] 1) 0.6g copper chloride (CuCl 2 2H 2 O) Dissolve in 5mL deionized water under stirring, then add 1.5g solid sodium hydroxide and 0.61g sodium dodecylbenzenesulfonate to the above solution successively under magnetic stirring, then continue stirring for 15 minutes to form blue Copper hydroxide Cu(OH) 2 suspension;

[0036] 2) Transfer the above suspension into a stainless steel reaction kettle with polytetrafluoroethylene lining. The volume of the reaction kettle is 25mL. After sealing, place the reaction kettle in a constant temperature drying oven at 180°C and heat for 8 hours to obtain a black product;

[0037] 3) Naturally cool the reactor to room temperature, then centrifuge the resulting black product, and wash the resulting solid three times with deionized water and absolute ethanol to remove residual soluble ions and surfactant SDBS in the precipitate, deionized ...

Embodiment 3

[0041] A preparation method of a fan / rod-shaped copper oxide material, comprising the following steps:

[0042] 1) 0.6g copper chloride (CuCl 2 2H 2 0) be dissolved in 5mL deionized water under stirring, then under magnetic stirring, 15mL mass percent concentration is 25% ammoniacal liquor and 0.61g sodium dodecylbenzenesulfonate are added in the above-mentioned solution successively, then continue to stir for 15 Minutes, blue tetraammine copper [Cu(NH 3 ) 4 ] 2+ With cationic solution;

[0043] 2) The above-mentioned blue tetraammine copper [Cu(NH 3 ) 4 ] 2+ The cationic solution was transferred into a stainless steel reaction kettle with a polytetrafluoroethylene lining. The volume of the reaction kettle was 25mL. After sealing, the reaction kettle was placed in a constant temperature drying oven at 180°C and heated for 8 hours to obtain a black product;

[0044] 3) Naturally cool the reactor to room temperature, then centrifuge the resulting black product, and wash ...

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Abstract

The invention discloses a copper oxide micro-nano composite structural material, which consists of CuO microspheres with nano flaky secondary structures, fan-shaped / bar-shaped CuO and CuO nanosheets in any ratio, wherein the CuO microspheres are 7-10 microns in diameter, and are formed by self-assembling nanosheets; the fan-shaped / bar-shaped CuO is formed by self-assembling bar-shaped CuO; and CuO bars are 6-12 microns in length and 400-600 nanometers in diameter. The copper oxide micro-nano composite structural material can be taken as a solar energy transformation material, a photocatalyst and a fluorescent material. A preparation method of the copper oxide micro-nano composite structural material comprises the following step of: preparing by taking copper chloride, ammonia water and sodium hydrate as raw materials and taking sodium dodecylbenzene sulfonate as a template under a low-temperature condition with a hydro-thermal method. The preparation method has the advantages of mild reaction condition, easiness for operating, low preparation cost, high product structure controllability, high repeatability and easiness for realizing large-scale production, contributes to large-scale popularization and application, and has great production and practical meanings.

Description

technical field [0001] The invention relates to the technical field of nanomaterial preparation, in particular to a copper oxide micro-nano composite structure material and a preparation method. Background technique [0002] As a narrow bandgap semiconductor, copper oxide CuO has attracted much attention due to its promising application prospects in the fields of catalysts, gas sensors, and solar energy conversion materials. [0003] Because the shape of the material has a great influence on its properties, a variety of CuO with different shapes have been designed and synthesized, such as nanowires, nanorods, nanoparticles, etc. Although CuO nanoparticles usually have high catalytic activity, they are prone to agglomeration during heterogeneous catalytic reactions, which greatly reduces their activity, and because their particle size is too small, it is difficult to recover by traditional methods, which greatly limits its practical application. Designing and synthesizing C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/02B82Y40/00
Inventor 朱连杰仇茉马春燕李宏斌刘坤孙有光
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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