Method for synthesizing cadmium hydroxide single-crystal nanowire

A single-crystal nanometer and cadmium hydroxide technology, which is applied in chemical instruments and methods, cadmium compounds, inorganic chemistry, etc., can solve problems such as unfavorable large-scale industrial production, reduced purity of final products, and complicated reaction process

Inactive Publication Date: 2004-11-17
SHANDONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the introduction of templates or surfactants in the reaction system is inseparable from their preparation and selection, which not only complicates the entire reaction process, but also is not conducive to large-scale industrial production, and may reduce the purity of the final product.
There is no report on the preparation method of cadmium hydroxide nanowires

Method used

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  • Method for synthesizing cadmium hydroxide single-crystal nanowire
  • Method for synthesizing cadmium hydroxide single-crystal nanowire
  • Method for synthesizing cadmium hydroxide single-crystal nanowire

Examples

Experimental program
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Effect test

Embodiment 1

[0014] Weigh 0.001mol of analytically pure cadmium chloride and place it in a beaker, dissolve it in 20ml of deionized water, then adjust the pH value of the solution to 14 with 5% potassium hydroxide solution to obtain white Cd(OH) 2 Precipitation was continued and stirring was continued for 10 minutes. The white Cd(OH) obtained above 2 The precipitate was washed by centrifugation until the pH value was 7, and then the white Cd(OH) 2 The precipitate was redispersed in 18 ml of water, and 0.3 g of potassium chloride was added as a mineralizer. Transfer the above solution into a 20ml stainless steel pressure-resistant reaction kettle, react at 250°C for 12 hours, then cool to room temperature, filter the product with a Buchner funnel, wash with deionized water, and dry at 60°C to obtain a white Cd(OH) 2 powder. The product was identified as hexagonal cadmium hydroxide by X-ray powder diffraction; the morphology of the product was detected by TEM electron microscope: the dia...

Embodiment 2

[0016] Weigh 0.001mol of analytically pure cadmium chloride and place it in a beaker, dissolve it in 20ml of deionized water, then adjust the pH value of the solution to 14 with 5% potassium hydroxide solution to obtain white Cd(OH) 2 Precipitation was continued and stirring was continued for 10 minutes. The white Cd(OH) obtained above 2 The precipitate was washed by centrifugation until the pH value was 7, and then the white Cd(OH) 2 The precipitate was redispersed in 18 ml of water, and 0.3 g of sodium nitrate was added as a mineralizer. Transfer the above solution into a 20ml stainless steel pressure-resistant reaction kettle, react at 250°C for 12 hours, then cool to room temperature, filter the product with a Buchner funnel, wash with deionized water, and dry at 60°C to obtain a white Cd(OH) 2 powder. The product was detected by X-ray powder diffraction and TEM electron microscope.

Embodiment 3

[0018] Weigh 0.001mol of analytically pure cadmium nitrate and place it in a beaker, dissolve it in 20ml of deionized water, then adjust the pH value of the solution to 14 with 5% potassium hydroxide solution to obtain white Cd(OH) 2 Precipitation was continued and stirring was continued for 10 minutes. The white Cd(OH) obtained above 2 The precipitate was washed by centrifugation until the pH value was 7, and then the white Cd(OH) 2 The precipitate was redispersed in 18 ml of water, and 0.3 g of sodium sulfate was added as a mineralizer. Transfer the above solution into a 20ml stainless steel pressure-resistant reaction kettle, react at 250°C for 12 hours, then cool to room temperature, filter the product with a Buchner funnel, wash with deionized water, and dry at 60°C to obtain a white Cd(OH) 2 powder. The product was detected by X-ray powder diffraction and TEM electron microscope.

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Abstract

The invention provides a process for preparing cadmium hydroxide single-crystal nanowires comprising the steps of, (1) dissolving soluble cadmium salt in deionized water, slowly charging alkali or ammonia solution till the pH is 10-14, stiring to produce white Cd(OH)2 deposition, (2) centrifugally scouring the white Al(OH)2 till pH is neutral, (3) redepersing the scoured white Cd(OH)2 deposition into deionized water, charging right amount of inorganic salt, (4) hot reaction 10-15 hours in air-tight container at 200-250 deg. C, thus obtaining cadmium hydroxide single crystal nanowires.

Description

technical field [0001] The invention belongs to the technical field of inorganic chemical industry and relates to a production method of nanomaterials, in particular to a synthesis method of cadmium hydroxide single crystal nanowires. Background technique [0002] Since the discovery of carbon nanotubes, one-dimensional nanostructured materials have attracted much attention because of their unique electrical, optical, magnetic and mechanical properties and their potential applications in the construction of nanodevices. Dimensional nanomaterials have always been a research hotspot. Relevant technical personnel have made many attempts in the preparation of one-dimensional nanostructures, in which templates or surfactants have been widely used. However, the introduction of templates or surfactants into the reaction system is inseparable from their preparation and selection, which not only complicates the entire reaction process, but also is not conducive to large-scale indust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G11/00
Inventor 唐波禚林海葛介超
Owner SHANDONG NORMAL UNIV
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