Diamond-shaped dodecahedron hollow potassium tannate nanoparticles and preparation method thereof

A rhombohedral dodecahedron and nanoparticle technology, applied in nanotechnology, nano-optics, nanotechnology, etc., can solve the problem of rare hollow potassium tannate nanoparticles, and achieve the effect of rich raw materials, simple preparation, and uniform particle size

Active Publication Date: 2017-08-29
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As far as we know, although people have constructed a variety of different types of metals, semiconductors, oxides, polymers, and carbon-based hollow micro-nano particles with various shapes and sizes through various methods and means, the current research on the preparation of hollow tanned Potassium Oxide Nanoparticles have been rarely reported

Method used

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  • Diamond-shaped dodecahedron hollow potassium tannate nanoparticles and preparation method thereof
  • Diamond-shaped dodecahedron hollow potassium tannate nanoparticles and preparation method thereof
  • Diamond-shaped dodecahedron hollow potassium tannate nanoparticles and preparation method thereof

Examples

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Effect test

Embodiment 1

[0027] Preparation of Rhombohedral Dodecahedral Hollow Potassium Tannate Nanoparticles with a Scale of 200 nm and a Wall Thickness of 65 nm

[0028] First add 16 milliliters of ethylene glycol to a 50 milliliter test tube, add 20 milliliters of 3 mol / liter 2-methylimidazole ethylene glycol solution, 4 milliliters of 1 mol / liter zinc nitrate ethylene glycol solution, and stir evenly. After stirring evenly, place it in an ultrasonic pool at 40 degrees Celsius for 3 hours to obtain a milky white ZIF-8 nanoparticle colloidal solution. Centrifuge the obtained ZIF-8 nanoparticle colloidal solution with a centrifuge and centrifuge at a speed of 14,000 rpm. After 20 minutes, the colorless solution in the centrifuge tube was removed to obtain a white precipitate product, which was then ultrasonically cleaned 3 times with alcohol to obtain the following figure 2 a and 2b show ZIF-8 nanoparticles with a size of 200 nanometers, which are dissolved and dispersed in an aqueous solution for...

Embodiment 2

[0030] Preparation of Potassium Tannate Nanoparticles with Rhombic Dodecahedron with Different Wall Thickness under Certain Potassium Hydroxide Concentration

[0031] First, take 4 parts of 1 ml ZIF-8 colloid solution prepared in advance and add them to 4 2 ml centrifuge tubes respectively, and mark them as A, B, C, D, and then under the condition of rapid stirring (800 rpm) Add 0.03 ml of 1 mol / L potassium hydroxide aqueous solution and 0.05 ml of 0.1 mol / L tannic acid aqueous solution to centrifuge tube A; mol / L tannic acid aqueous solution; add 0.03 ml 1 mol / L potassium hydroxide aqueous solution, 0.15 ml 0.1 mol / L tannic acid aqueous solution to centrifuge tube C; add 0.03 ml 1 mol / L potassium hydroxide solution to centrifuge tube D Potassium hydroxide aqueous solution, 0.2 milliliters of 0.1 mol / liter tannic acid aqueous solution, wherein, the concentrations of potassium hydroxide and tannic acid in the A precursor are respectively 0.03 mol / liter and 0.005 mol / liter, and ...

Embodiment 3

[0033] Preparation of Potassium Tannate Nanoparticles with Rhombic Dodecahedron with Different Wall Thickness under Certain Conditions of Tannin Concentration

[0034] First, take 4 parts of 1 ml ZIF-8 colloid solution prepared in advance and add them to 4 2 ml centrifuge tubes respectively, and mark them as A, B, C, D, and then under the condition of rapid stirring (800 rpm) Add 0.01 ml of 1 mol / L potassium hydroxide aqueous solution and 0.1 ml of 0.1 mol / L tannic acid aqueous solution to centrifuge tube A; mol / L tannic acid aqueous solution; add 0.03 ml 1 mol / L potassium hydroxide aqueous solution, 0.1 ml 0.1 mol / L tannic acid aqueous solution to centrifuge tube C; add 0.04 ml 1 mol / L potassium hydroxide solution to centrifuge tube D Potassium hydroxide aqueous solution, 0.1 milliliter of 0.1 mol / liter tannic acid aqueous solution, wherein, the concentrations of potassium hydroxide and tannic acid in the A precursor are respectively 0.01 mol / liter and 0.01 mol / liter, and in ...

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Abstract

The invention relates to diamond-shaped dodecahedron hollow potassium tannate nanoparticles and a preparation method thereof which are characterized in that obtained potassium tannate nanoparticles have diamond-shaped dodecahedron hollow appearance structures and are directly prepared in an aqueous solution based on an acid-base neutralization principle and a dissolution mechanism in a ZIF-8 acid environment under the condition of a room temperature. The preparation method comprises the following preparation steps: (1) firstly preparing a ZIF-8 nanoparticle colloidal solution in an ethylene glycol solution by taking zinc nitrate and 2-methylimidazole as raw materials, centrifugally separating, performing ultrasonic cleaning with alcohol and then dispersing in the aqueous solution; (2) adding potassium hydroxide and a tannic acid aqueous solution into the ZIF-8 aqueous solution under the condition of rapid stirring, uniformly mixing and reacting for 10-60 minutes under stirring at a room temperature; (3) centrifugally separating the prepared colloidal solution obtained in the step (2) at a high speed and performing ultrasonic cleaning to obtain the diamond-shaped dodecahedron hollow potassium tannate nanoparticles. The hollow potassium tannate nanoparticles obtained by the preparation method provided by the invention have important application values in drug transport, UV protection, bacterium resistance, pollutant adsorption and the like.

Description

technical field [0001] The invention relates to rhombic dodecahedral hollow potassium tannate nanoparticles and a preparation method thereof, belonging to the field of nanomaterials. Background technique [0002] Hollow nanoparticles have many excellent physical and chemical properties such as low density, high specific surface area, and strong adsorption capacity. It has very important application value and broad application prospect, therefore, the preparation of hollow nanoparticles has been attracting much attention. In order to control the synthesis of hollow nanoparticles with different shapes, compositions, and structures, researchers have developed soft / hard template methods, microemulsion methods, self-assembly methods, spray reaction methods, template-interface reaction methods, sacrificial template methods, Various methods and technologies for preparing hollow nanoparticles such as template method. Using the above synthesis method, people have successfully prepa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07H1/00C07H13/08B82Y20/00B82Y40/00
Inventor 张垒李村成张广友李伟涂言言韦云威刘广宁
Owner UNIV OF JINAN
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