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Synthetic method of porous ZnO three-dimensional superstructure assembled by nano-sheets

A synthesis method and superstructure technology, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of small size and complicated manufacturing methods, and achieve large size, low cost, and pore size distribution uniform effect

Active Publication Date: 2013-09-25
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the size of the superstructure obtained by the above synthesis method is small or requires the use of a template, and the production method is complicated. Therefore, a relatively simple superstructure material that can be synthesized with a large size is needed.

Method used

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  • Synthetic method of porous ZnO three-dimensional superstructure assembled by nano-sheets
  • Synthetic method of porous ZnO three-dimensional superstructure assembled by nano-sheets
  • Synthetic method of porous ZnO three-dimensional superstructure assembled by nano-sheets

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Effect test

Embodiment 1

[0032] Pour 50mL of zinc ion (0.25 mol / L) precursor solution into a 250mL beaker, stir, and take another 40mL of ammonia water (0.5 mol / L) solution, put it in a separatory funnel, and pour the ammonia solution through the separatory funnel Within 30 minutes, add it dropwise to the zinc ion solution, continue to stir for 20 minutes, stand still, separate the precipitate by suction filtration, wash with distilled water and ethanol; dry in a constant temperature blast drying oven at 60~90°C; after complete drying, take out Grind finely to obtain a white powder. Weigh 0.4g of white powder sample, pour it into a 100ml beaker, add 20mL of distilled water to mix, and magnetically stir; then weigh 0.6g of anhydrous sugar and pour it into the beaker. After heating and stirring for a period of time. Take out the stirring bar, put the beaker in a drying oven at 60~90°C to dry; after complete drying, a white powder is obtained. The white powder was calcined in a high-temperature tube fu...

Embodiment 2

[0034]Pour 50mL of zinc ion (0.25 mol / L) precursor solution into a 250mL beaker, stir, and take another 50mL of ammonia water (0.5 mol / L) solution, put it in a separatory funnel, and pour the ammonia solution Within 40 minutes, add it dropwise to the zinc ion solution, continue to stir for 20 minutes, stand still, separate the precipitate by suction filtration, wash with distilled water and ethanol; dry in a constant temperature blast drying oven at 60~90°C; after complete drying, take out Grind finely to obtain a white powder. Weigh 0.4g of white powder sample, pour it into a 100ml beaker, add 20mL of distilled water to mix, and magnetically stir; then weigh 0.7g of anhydrous sugar and pour it into the beaker. After heating and stirring for a period of time. Take out the stirring bar, put the beaker in a drying oven at 60~90°C to dry; after complete drying, a white powder is obtained. The white powder was calcined in a high-temperature tube furnace at 400°C for 2 hours unde...

Embodiment 3

[0036] Pour 50mL of zinc ion (0.25 mol / L) precursor solution into a 250mL beaker, stir, and take another 60mL of ammonia water (0.5 mol / L) solution, put it in a separatory funnel, and pour the ammonia solution Add it dropwise to the zinc ion solution within 50 minutes, continue to stir for 20 minutes, stand still, separate the precipitate by suction filtration, wash with distilled water and ethanol; dry in a constant temperature blast drying oven at 60~90°C; after complete drying, take out Grind finely to obtain a white powder. Weigh 0.4g of white powder sample, pour it into a 100ml beaker, add 20mL of distilled water to mix, and magnetically stir; then weigh 0.8g of anhydrous sugar and pour it into the beaker. After heating and stirring for a period of time. Take out the stirring bar, put the beaker in a drying oven at 60~90°C to dry; after complete drying, a white powder is obtained. The white powder was calcined in a high-temperature tube furnace at 500°C for 3 hours unde...

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Abstract

The invention belongs to the field of nanometer materials and technologies, and discloses a synthetic method of a porous ZnO three-dimensional superstructure assembled by nano-sheets. The method comprises following steps: preparing a pecursor solution with zinc salts; stirring the pecursor solution which contains zinc ions, adding ammonia into the pecursor solution dropwise, stirring continuously, allowing the solution to stand, and then a white sediment is obtained; washing the white sediment with distilled water and alcohol, drying and grinding the sediment, and then a white powder is obtained; taking 0.4g of the white powder, adding 20ml distilled water, stirring magnetically, adding 0.6 to 0.9g of anhydro sugar, heating, stirring, drying, and then the white powder is obtained when the mixture is dried out; adding the white powder into a high temperature tube furnace at a temperature of 300 to 500 DEG C, roasting for 1 to 3h in inert atmosphere, cooling, and a sample is obtained; and adding the sample into a muffle furnace under the temperature of 300 to 600 DEG C, roasting for 1 to 3h in air atmosphere, and then the ZnO three-dimensional superstructure assembled by the nano-sheets is obtained.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, in particular to a method for synthesizing a porous ZnO three-dimensional superstructure assembled by nanosheets. Background technique [0002] The composition, size, morphology, and structure of inorganic micro / nano superstructures have a very important impact on their properties. Exploring the relationship between them has become a research hotspot in the field of modern micro / nano materials. The research on the traditional material ZnO is also very extensive, and various methods have been used to prepare ZnO hierarchical nanostructures, such as liquid phase method, heating reflux, hydrothermal synthesis, chemical vapor deposition, solvothermal, electrochemical deposition, etc. [0003] The liquid-phase synthesis method is mild, simple, economical, and high-yield, and is widely used to prepare ZnO hierarchical nanostructures with different morphologies. For example, Shi et al. used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02B82Y30/00
Inventor 孙彦刚李燕妮俞旭峰徐箐利饶品华张文启丁德润
Owner SHANGHAI UNIV OF ENG SCI
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