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Hydroxyl zinc chloride ultrathin nanosheet and preparation method thereof

A zinc hydroxychloride and nanosheet technology, applied in zinc halide, nanotechnology, nanotechnology and other directions, can solve the problems of complex and expensive synthesis of reactants, harsh reaction conditions, unstable chemical properties, etc., and achieve low toxicity of reactants. , low cost, smooth surface without defects

Active Publication Date: 2019-12-13
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing disclosed methods for preparing zinc hydroxychloride generally have many limitations such as long reaction time, complicated and cumbersome process, harsh reaction conditions, unstable chemical properties, complex and expensive synthetic reactants, and difficult preservation of products. The thickness of zinc hydroxychloride nanosheets is relatively thick, about 20nm-20μm
Thinner zinc hydroxychloride nanosheets and preparation methods are rarely reported

Method used

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  • Hydroxyl zinc chloride ultrathin nanosheet and preparation method thereof
  • Hydroxyl zinc chloride ultrathin nanosheet and preparation method thereof
  • Hydroxyl zinc chloride ultrathin nanosheet and preparation method thereof

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Embodiment 1

[0030] High-purity anhydrous zinc chloride solid particles and isopropanol are used as raw materials. First take 1.0g of zinc chloride ZnCl 2 Put it into a clean beaker, add 15mL of isopropanol and stir in a magnetic stirrer for 1h. After the stirring is completed, ultrasonically disperse in an ultrasonic cleaner at room temperature and pressure for 30min. This process is repeated 3 times to fully react the drug and obtain a suspension. Turbid liquid; centrifuge the suspension to obtain a white precipitate, centrifuge and wash the white precipitate 3 times with absolute ethanol, then pour the precipitate into a clean porcelain cup, dry at 80°C for 8 hours, then grind and collect , to obtain zinc hydroxychloride (Zn 5 (OH) 8 Cl 2 )sample.

[0031] This embodiment is (Zn 5 (OH) 8 Cl 2 ) sample best example.

[0032] figure 1 Given the Zn prepared under the above conditions 5 (OH) 8 Cl 2 From the EDX diagram of the nanosheets, it can be concluded that the nanosheets a...

Embodiment 2

[0037] High-purity anhydrous zinc chloride solid particles and propanol are used as raw materials. First take 1.0g of zinc chloride ZnCl 2 Put it into a clean beaker, add 15mL of propanol and stir in a magnetic stirrer for 1 hour. After the stirring is completed, ultrasonically disperse for 30 minutes in an ultrasonic cleaner at room temperature and pressure. Repeat this process 3 times to fully react the drug and obtain a suspension liquid; the suspension was centrifuged to obtain a white precipitate, which was centrifuged and washed several times with anhydrous ethanol, and then the precipitate was poured into a clean porcelain cup, dried at 80°C and then ground and collected to obtain a white Powdered zinc hydroxychloride (Zn 5 (OH) 8 Cl 2 )sample.

[0038] Figure 10 Given the Zn prepared under the above conditions 5 (OH) 8 Cl 2 From the XRD spectrum of the nanosheets, it can be seen that the crystallinity of the zinc hydroxychloride synthesized under this conditio...

Embodiment 3

[0040] High-purity anhydrous zinc chloride solid particles and isopropanol are used as raw materials. First take 0.5g of zinc chloride ZnCl 2 Put it into a clean beaker, add 15mL of isopropanol and stir in a magnetic stirrer for 1h. After the stirring is completed, ultrasonically disperse in an ultrasonic cleaner at room temperature and pressure for 30min. This process is repeated 3 times to fully react the drug and obtain a suspension. Turbid liquid; the suspension was centrifuged to obtain a white precipitate, which was centrifuged and washed several times with absolute ethanol, then poured into a clean porcelain cup, dried at 80°C, and then ground and collected to obtain Zinc hydroxychloride (Zn 5 (OH) 8 Cl 2 )sample.

[0041] Figure 11 gives the as-prepared Zn 5 (OH) 8 Cl 2 From the scanning electron microscope of the nanosheets, it can be seen that the crystals are still in the shape of thin sheets, but the overall shape is not good, and some samples have shape d...

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Abstract

The invention discloses a hydroxyl zinc chloride ultrathin nanosheet and a preparation method thereof, and belongs to the technical field of the preparation of IIB-group hydroxychloride nano-materials. The hydroxyl zinc chloride ultrathin nanosheet is a compound Zn5(OH)8Cl2 formed according to a ratio that a stoichiometric number is 5:8:2, the compound Zn5(OH)8Cl2 is an orthogonal system crystal,and a space group is Pcab. The nanosheet has a layered nanosheet structure, the side length of the nanosheet is 200-3000nm, and a thickness is 4.0-7.9nm. The preparation method for the hydroxyl zinc chloride ultrathin nanosheet comprises the following steps of: firstly, adding zinc chloride solid particles into an isopropyl alcohol or propyl alcohol, stirring for 60min, carrying out ultrasound for30min, repeating for 2-3 times, after an obtained turbid liquid is subjected to centrifugation, carrying out centrifugal cleaning on the obtained turbid liquid by an absolute ethyl alcohol for threetimes, drying, and grinding. The invention is simple in operation, good in repeatability, low in cost and small in reactant toxicity. The prepared Zn5(OH)8Cl2 nano-sheet has the advantages of high yield and high purity and can be stably stored without denaturation for a long time under a room temperature environment.

Description

technical field [0001] The invention belongs to the technical field of preparing IIB hydroxychloride nanometer materials, and in particular relates to a simple, novel and efficient method for preparing zinc hydroxychloride nanosheets. Background technique [0002] In recent years, the research on two-dimensional materials has developed rapidly. The new two-dimensional nanomaterials represented by graphene have unique structures and excellent electronic properties, and have great application potential in various fields of electrochemistry. In addition, two-dimensional materials have been widely used in the fields of optics, magnetism, and high-density materials. Therefore, the preparation of new two-dimensional nanomaterials and the exploration of new preparation methods for two-dimensional nanosheet structure materials are of great research significance for the exploration of the nanometer field. [0003] With the continuous progress and development of scientific research ...

Claims

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Application Information

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IPC IPC(8): C01G9/04B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G9/04C01P2002/70C01P2002/72C01P2002/85C01P2004/03C01P2004/04C01P2006/80
Inventor 张剑魏子钦罗亚肖王美玲赵悦田辉崔啟良
Owner JILIN UNIV