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Secondary nanosphere hierarchical structure based ZnO nano material and preparation method thereof

A hierarchical structure and nanomaterial technology, applied in nanotechnology, nanotechnology, nanotechnology, etc. for materials and surface science, can solve the problems of poor ability to capture visible light and small specific surface area, and increase the range of photoresponse , equipment requirements are not high, the effect of enhanced fluorescence intensity

Active Publication Date: 2016-12-07
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the ZnO nanomaterials currently studied are zero-dimensional, one-dimensional and two-dimensional structures, but their development is limited by the small specific surface area and the weak ability to capture visible light.

Method used

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  • Secondary nanosphere hierarchical structure based ZnO nano material and preparation method thereof
  • Secondary nanosphere hierarchical structure based ZnO nano material and preparation method thereof
  • Secondary nanosphere hierarchical structure based ZnO nano material and preparation method thereof

Examples

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Embodiment 1

[0031] A preparation method based on secondary nanosphere hierarchical structure ZnO nanomaterials, comprising the following steps:

[0032] 1) Weigh 0.65g of zinc acetate dihydrate, add it to 100ml of dimethylformamide and stir until fully dissolved, and mark the mixed solution as A solution;

[0033] 2) Weigh 0.4g of urea and 0.1ml of oleic acid, and then add the two to 30ml of dimethylformamide solution with a concentration of 99.5wt%, and mark this solution as B solution;

[0034] 3) First place the beaker containing solution A in a water bath, keep the temperature at 70°C, and bathe in water for 5 hours; then, cool solution A (the above reaction system) with ice water to make it cool rapidly;

[0035] 4) Under the condition of rapid stirring (speed 150 rpm), add the B solution in step 2) dropwise to the cooled A solution {reaction system of step 3)}, and mark the mixed solution as C solution;

[0036] 5) Place the beaker containing solution C in the water bath again, ra...

Embodiment 2

[0042] A preparation method based on secondary nanosphere hierarchical structure ZnO nanomaterials, comprising the following steps:

[0043] 1) Weigh 0.65g of zinc acetate dihydrate, add it to 100ml of dimethylformamide and stir until fully dissolved, and mark the mixed solution as A solution;

[0044] 2) Weigh 0.4g of urea and 0.1ml of oleic acid, and then add the two to 30ml of dimethylformamide solution with a concentration of 99.5wt%, and mark this solution as B solution;

[0045] 3) First place the beaker containing solution A in a water bath, keep the temperature at 80°C, and bathe in water for 5 hours; then, cool the above reaction system with ice water to make it cool rapidly;

[0046] 4) Under the condition of rapid stirring (speed 150 rpm), add the B solution in step 2) dropwise to the cooled A solution {reaction system of step 3)}, and mark the mixed solution as C solution;

[0047] 5) Place the beaker containing solution C in the water bath again, raise the tempe...

Embodiment 3

[0053] A preparation method based on secondary nanosphere hierarchical structure ZnO nanomaterials, comprising the following steps:

[0054] 1) Weigh 0.65g of zinc acetate dihydrate, add it to 100ml of dimethylformamide and stir until fully dissolved, and mark the mixed solution as A solution;

[0055] 2) Weigh 0.4g of urea and 0.1ml of oleic acid, and then add the two to 30ml of dimethylformamide solution with a concentration of 99.5wt%, and mark this solution as B solution;

[0056] 3) Put the beaker containing solution A in a water bath, keep the temperature at 90°C, and bathe in water for 5 hours; then, cool the above reaction system with ice water to make it cool rapidly;

[0057] 4) Under the condition of rapid stirring (speed 150 rpm), add the B solution in step 2) dropwise to the cooled reaction system of A solution {step 3), and mark the mixed solution as C solution ;

[0058] 5) Place the beaker containing solution C in the water bath again, raise the temperature t...

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Abstract

The invention relates to a secondary nanosphere hierarchical structure based ZnO nano material and a preparation method thereof. The secondary nanosphere hierarchical structure based ZnO nano material is characterized by being prepared from zinc acetate containing dihydrate, dimethyl formamide, urea, oleic acid and a dimethyl formamide solution, wherein the preparation proportion of the zinc acetate containing dihydrate, the dimethyl formamide, the urea, the oleic acid and the dimethyl formamide solution is 0.65-1.3 g to 100-200 ml to 0.4 g to 0.1 ml to 30 ml. Compared with ordinary zinc oxide, the equipment requirements are not high, the light-absorbing intensity is enhanced, and a light response range is increased.

Description

technical field [0001] The invention relates to the field of quantum dot solar cells, in particular to a ZnO nanometer material with a hierarchical structure based on secondary nanospheres and a preparation method thereof. Background technique [0002] As we all know, energy is the key to supporting rapid economic development. In recent years, with the prosperity and development of the economy, the world is facing increasingly severe environmental pollution and energy shortages. How to develop and utilize green and safe new energy sources with abundant reserves has gradually become an effective way to solve current energy problems that people generally pay attention to. As a non-polluting, renewable new energy source, the effective use of solar energy is expected to alleviate human society and environmental problems. Solar cells can realize photoelectric direct conversion and are the most effective new devices for utilizing solar energy. [0003] The photoanode is the cor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02B82Y30/00H01G9/20
CPCC01G9/02C01P2002/72C01P2002/82C01P2002/84C01P2004/03C01P2004/04C01P2004/32C01P2004/64C01P2006/60H01G9/204Y02E10/542
Inventor 李宏朱琳玉
Owner WUHAN UNIV OF TECH
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