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Silicon-germanium oxide composite nanowire and preparation method thereof

A composite nano-oxide technology, applied in chemical instruments and methods, single crystal growth, polycrystalline material growth, etc., can solve the problems of not being suitable for large-scale production, high synthesis cost, and consumption of template agents, etc., to achieve good application and The effect of industrialization prospect, high product quality and high production efficiency

Inactive Publication Date: 2013-07-17
苏州汉能环保材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method does not require a high temperature and can grow composite nanowires under relatively mild conditions, but it needs to consume templates, the synthesis cost is high, and the roasting of templates will also pollute the environment and is not suitable for large-scale production.

Method used

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  • Silicon-germanium oxide composite nanowire and preparation method thereof
  • Silicon-germanium oxide composite nanowire and preparation method thereof
  • Silicon-germanium oxide composite nanowire and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Silica Microsphere A 1 Preparation of:

[0039] 1.96g CTAB (cetyltrimethylammonium bromide), 2.32g Na 2 SiO 3 9H 2 O mixed with 17g of distilled water, stirred evenly at room temperature, then injected 1.75ml of ethyl acetate into the above solution, stopped stirring after 30 seconds, and heated the mixed solution after standing at room temperature for 5 hours in an oil bath at 90°C for 50 hours, The product was filtered and washed with distilled water to obtain silica microspheres A 1 .

Embodiment 2

[0041] 0.1g of silica microspheres A 1 Disperse in 5ml of ferric nitrate solution with a concentration of 0.5-2mol / l and soak overnight, then centrifuge the mixed solution and dry it in an oven at 90°C, roast the dried solid at 400°C for 4 hours, and mix the roasted product with 0.1 gα germanium oxide is mixed and ground to obtain red mixed solid A 2 . Cut a piece of stainless steel mesh and fix it in a reaction kettle with a polytetrafluoroethylene liner, and place A 2 Spread evenly on the stainless steel net, then inject 1ml of water and 1.6ml of ethylenediamine into the bottom of the kettle, tighten the reaction kettle and put it in an oven at 200°C for 1 day, take out the green solid on the stainless steel net, wash it with absolute ethanol three times before Wash three times with water, then dry the green solid in an oven at 90°C to obtain product A 3 , that is, the silicon germanium oxide composite nanowire of this embodiment was obtained, and the yield was 97%.

Embodiment 3

[0043] Remove 0.1g of silica microspheres A 1 Except changing to 0.1g white carbon black, other method steps are identical with embodiment 2, obtain product B 3 , that is, the silicon germanium oxide composite nanowire of this embodiment is obtained, and the yield is above 95%.

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Abstract

The invention provides a silicon-germanium oxide composite nanowire and a preparation method of the silicon-germanium oxide composite nanowire. The composite nanowire is formed by the composite growth of monocrystalline orthogonal silicon oxide crystalline phase and monocrystalline orthogonal germanium oxide crystalline phase, the composite nanowire is twin crystal of silicon oxide and germanium oxide, the length of the composite nanowire is 10-40mu m, the width of the composite nanowire is 20-40nm, and the mass ratio of the silicon oxide to the germanium oxide is 0.1-5: 1. The unformed silicon oxide is taken as a silicon source. The preparation method comprises the steps of implanting ferric oxide nano particles in a dipping and roasting way, grinding with alpha germanium oxide in a mixing way, and carrying out gas-solid phase hydrothermal reaction of organic amine, so as to finally obtain the silicon-germanium oxide composite nanowire. The silicon-germanium oxide composite nanowire prepared by the method is very good in fluorescence activity, large in specific area, and adjustable in thickness and length property, the yield is higher than 95%, and the silicon-germanium oxide composite nanowire is high in product quality, so that the silicon-germanium oxide composite nanowire and the preparation method of the silicon-germanium oxide composite nanowire have a potential application value in the field of synthesis of the design of advanced catalyst, the biological fluorescent mark, the nanometer device assembly, the microscopic conduction and the advanced optical, electrical and magnetic materials.

Description

technical field [0001] The invention relates to a silicon-germanium oxide composite nanowire and a preparation method thereof, in particular to a single crystal silicon obtained by using an aqueous solution of ethylenediamine as a reaction solution through gas-solid phase treatment of a mixture of amorphous silicon oxide and α-germanium oxide Germanium oxide composite nanowires. Background technique [0002] One-dimensional materials, including nanowires, nanotubes, nanorods, etc., have broad application prospects in the fields of catalysis, environmental protection, and other functional material assembly due to their microscopic one-dimensional structure and large specific surface area, and have become a major research focus in recent years. one. Composite nanowires have a wide range of applications in the fields of optics, electrochemistry, catalysis, adsorption and separation due to their physical and chemical properties of two or more than two one-dimensional nanomateri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/62C30B29/22C30B7/14
Inventor 徐玮陈平程晓丹李光朔陈明富
Owner 苏州汉能环保材料科技有限公司