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Preparation of ZnO/ ZnS/ Ag nano-rod array in microchannel

A nanorod array, microchannel technology, applied in nanostructure manufacturing, nanotechnology, nanotechnology and other directions, to achieve the effect of simple operation and good application prospects

Inactive Publication Date: 2013-03-06
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for preparing a ZnO / ZnS / Ag nanorod array in a microchannel. The method utilizes a wet chemical synthesis method combined with the continuous flow of microfluids to achieve a microfluidic surface on the inner surface of a capillary microchannel. Continuous construction of multi-layer nanostructures is easy to operate; construction of special nanostructures on the inner surface of microchannels solves the problem that conventional microfabrication methods cannot penetrate into closed microchannels for operation, and has a good application prospect

Method used

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  • Preparation of ZnO/ ZnS/ Ag nano-rod array in microchannel
  • Preparation of ZnO/ ZnS/ Ag nano-rod array in microchannel
  • Preparation of ZnO/ ZnS/ Ag nano-rod array in microchannel

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Configure 0.01M zinc acetate dihydrate ethanol solution, 0.04M sodium hydroxide ethanol solution, 0.05M zinc nitrate hexahydrate solution, 0.05M hexamethylenetetramine solution, configure 2M thioacetamide (TAA) solution and 2M sodium thioglycolate (ST) solution.

[0033] (1) Inhale the ethanol solution of zinc acetate dihydrate and the ethanol solution of sodium hydroxide into two 10mL syringes respectively, set the push speed of the micro-syringe pump to 10 μL / min, and deliver them to the micro-syringe pre-placed in a 60°C oven at the same time. In the channel, stop conveying after the microchannel is filled. After 2 hours of reaction, raise the temperature of the oven to 150°C and anneal for 1 hour. Clean the microchannel with ethanol and deionized water successively, and dry it at 150°C for 2 hours. A ZnO seed layer film is obtained on the inner surface;

[0034] (2) Simultaneously transport the zinc nitrate hexahydrate solution and the hexamethylenetetramine soluti...

Embodiment 2

[0040] Prepare 0.03M zinc acetate dihydrate ethanol solution, 0.06M sodium hydroxide ethanol solution, 1M zinc nitrate hexahydrate solution, 1M hexamethylenetetramine solution, 1M thioacetamide (TAA) solution and 1M Sodium thioglycolate (ST) solution. (1) Inhale the ethanol solution of zinc acetate dihydrate and the ethanol solution of sodium hydroxide into two 10mL syringes respectively, set the push speed of the micro-syringe pump to 20 μL / min, and deliver them to the micro-syringe pre-placed in a 70°C oven at the same time. In the channel, stop conveying after the microchannel is filled. After 4 hours of reaction, raise the temperature of the oven to 150°C for annealing for 2 hours. Clean the microchannel with ethanol and deionized water successively, and dry it at 170°C for 2 hours. A ZnO seed layer film is obtained on the inner surface;

[0041] (2) Simultaneously transport the zinc nitrate hexahydrate solution and the hexamethylenetetramine solution to the microchannel ...

Embodiment 3

[0047] Prepare 0.02 M zinc acetate dihydrate ethanol solution, 0.05 M sodium hydroxide ethanol solution, 0.08 M zinc nitrate hexahydrate solution, 0.08 M hexamethylenetetramine solution, 0.5 M thioacetamide (TAA) solution and 1M sodium thioglycolate (ST) solution.

[0048] (1) Inhale the ethanol solution of zinc acetate dihydrate and the ethanol solution of sodium hydroxide into two 10mL syringes respectively, set the push speed of the micro-syringe pump to 20 μL / min, and deliver them to the micro-syringe pre-placed in a 65°C oven at the same time. In the channel, stop the transportation after the microchannel is filled, and after 1.5 hours of reaction, raise the temperature of the oven to 150 ° C for 1.5 hours, wash the micro channel with ethanol and deionized water, and dry at 170 ° C for 1.5 hours, Obtain a ZnO seed layer film on the inner surface of the microchannel;

[0049] (2) Simultaneously transport the zinc nitrate hexahydrate solution and the hexamethylenetetramine...

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Abstract

The invention relates to a preparation method of a ZnO / ZnS / Ag nano-rod array in a microchannel, which comprises the steps: preparing a ZnO nano-rod array on the inner surface in the microchannel by a wet chemical method, sequentially conveying a thioacetamide solution, a sodium thioglycollate solution and a prepared fresh Ag sol into the microchannel preset with the ZnO nano-rod array, and continuously constructing a multilayer-structure nano-rod array of ZnO, ZnS and Ag on the inner surface in the microchannel. As the wet chemical synthesis method is utilized to be combined with continuous flow of microfluid, the multilayer nano-structure can be continuously constructed on the inner surface in the microchannel of a capillary tube, and the operation is simple; and the special nano-structure constructed on the inner surface in the microchannel solves the problem that the conventional micro-machining method can not be operated deeply in the closed microchannel, and is good in application prospect.

Description

technical field [0001] The invention belongs to the field of preparation of nanorods on the inner surface of a microchannel, in particular to the preparation of a ZnO / ZnS / Ag nanorod array in a microchannel. Background technique [0002] In recent years, nanomaterials have attracted great attention due to their unique physical and chemical properties. Especially as the assembly unit of novel micro / nano devices, nanostructures play a decisive role in the performance of micro / nano devices. It is of great significance to study the structure, morphology and control synthesis technology of nanomaterials. Scientists have tried various methods for the controllable synthesis of specific nanostructures (such as multilayer core-shell nanostructures), but how to construct large-area, highly ordered core-shells on arbitrary substrate materials Structuring nanorod arrays has not found a low-cost method so far. This greatly limits the application of nanotechnology in assembling novel mi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B81C1/00B82B3/00
Inventor 王宏志何中媛李耀刚张青红
Owner DONGHUA UNIV
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