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Method for preparing zinc oxide nano sheet array

A zinc oxide nano- and nano-flaky technology, which is applied in the direction of zinc oxide/zinc hydroxide, nanotechnology, etc., can solve the problems that the commercial prospects of ZnO nanowires are not optimistic, and achieve the effect of high specific surface area and good repeatability

Inactive Publication Date: 2012-07-04
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although it has been reported recently that metal oxide chemical vapor deposition using organometallic zinc precursors [2] The reaction temperature has been lowered to 4500C, but the commercial prospect of growing ZnO nanowires by vapor phase method is still not promising

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  • Method for preparing zinc oxide nano sheet array
  • Method for preparing zinc oxide nano sheet array
  • Method for preparing zinc oxide nano sheet array

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Preparation of ZnO seeds. First, under the condition of water bath at 60°C, 125mL of methanol solution of zinc acetate dihydrate with a concentration of 0.01M was prepared in the flask, and the vigorous stirring was accompanied by the whole reaction process; secondly, 65mL of methanol solution of potassium hydroxide (0.03M) was added dropwise Drop into the above solution; finally, the mixed solution was continuously stirred at 60° C. for 2 hours, and the preparation of the seed solution was completed.

[0022] The synthesized ZnO seeds were spin-coated onto coverslip (2 cm x 2 cm) substrates. Place the coverslip on the SC-1B homogenizer, add two drops of ZnO seed solution onto the surface of the coverslip at a speed of 2000 r / min, and spin-coat for 60 seconds; repeat the spin-coating three times.

[0023] Prepare the reaction solution for the growth of ZnO nanosheets. In a 50ml beaker, prepare 30ml of zinc nitrate (0.05M) and hexamethylenetetramine (0.05M) of equimola...

Embodiment 2

[0026] Preparation of ZnO seeds. First, under the condition of water bath at 60°C, 125mL methanol solution of zinc acetate dihydrate with a concentration of 0.013M was prepared in the flask, and the vigorous stirring was accompanied by the whole reaction process; secondly, 65mL methanol solution of potassium hydroxide (0.05M) was added dropwise Drop into the above solution; finally, the mixed solution was continuously stirred at 70° C. for 5 hours, and the preparation of the seed solution was completed.

[0027] The synthesized ZnO seeds were spin-coated onto coverslip (2 cm x 2 cm) substrates. Place the coverslip on the SC-1B homogenizer, add two drops of ZnO seed solution onto the surface of the coverslip at a speed of 2000 r / min, and spin-coat for 60 seconds; repeat the spin-coating three times.

[0028] Prepare the reaction solution for the growth of ZnO nanosheets. In a 50ml beaker, prepare 30ml of zinc nitrate (0.05M) and hexamethylenetetramine (0.05M) of equimolar con...

Embodiment 3

[0031] Preparation of ZnO seeds. First, under the condition of water bath at 60°C, 125mL methanol solution of zinc acetate dihydrate with a concentration of 0.026M was prepared in the flask, and the vigorous stirring was accompanied by the whole reaction process; secondly, 65mL methanol solution of potassium hydroxide (0.095M) was added dropwise Drop into the above solution; finally, the mixed solution was continuously stirred at 65° C. for 6 hours, and the preparation of the seed solution was completed.

[0032] The synthesized ZnO seeds were spin-coated onto coverslip (2 cm x 2 cm) substrates. Place the coverslip on the SC-1B homogenizer, add two drops of ZnO seed solution onto the surface of the coverslip at a speed of 2000 r / min, and spin-coat for 60 seconds; repeat the spin-coating three times.

[0033] Prepare the reaction solution for the growth of ZnO nanosheets. In a 50ml beaker, prepare 30ml of zinc nitrate (0.05M) and hexamethylenetetramine (0.05M) of equimolar co...

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Abstract

The invention discloses a method for preparing a zinc oxide nano sheet array, which comprises the following steps that: zinc oxide (ZnO) seed crystal solution is firstly prepared, spin coating is completed on a base, then a reaction liquid for ZnO nanosheets to grow is prepared, the base which is spin-coated with the seed crystal solution is put into the reaction liquid and is sealed, so the zinc oxide nano sheet array grows. The invention has the characteristics of quickness and convenience, has good repeatability, and can produce the zinc oxide nano sheet array on any base in a large area, expansive instruments, complicated technological conditions and harsh experimental parameters are prevented from being used, and the reaction time is finely regulated to observe the microstructure of the surface of a cover glass.

Description

technical field [0001] The invention relates to the preparation technology of nanometer materials, in particular to a simple preparation method of ZnO nano sheet array. Background technique [0002] Since the first report on the UV excitation effect of ZnO nanowires, a lot of effort has been devoted to the study of synthetic methods for 1D ZnO nanomaterials. Among the various synthetic techniques reported in the existing literature, the evaporation and condensation synthesis process is the most popular, because this method is simple and can obtain high-quality products. But these gas phase processes usually require temperatures of 800-900°C. Although it has been reported recently that metal oxide chemical vapor deposition using organometallic zinc precursors [2] The reaction temperature has been lowered to 4500C, but the commercial prospect of growing ZnO nanowires by vapor phase method is still not promising. In 2003, Yang Peidong and others successfully used the low tem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02B82Y40/00
Inventor 鲁从华王少武
Owner TIANJIN UNIV
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