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Method for producing zinc hydroxide nano-wire

A technology of zinc hydroxide and nanowires, applied in the direction of zinc oxide/zinc hydroxide, etc., to achieve good stability, low cost, and overcome cost and environmental pollution

Inactive Publication Date: 2009-08-19
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved in the present invention is to provide a method for preparing zinc hydroxide nanowires, using layered zinc hydroxide acetate as a precursor to hydrolyze zinc hydroxide nanowires, and the method is simple and convenient, overcoming the problems caused by the use of organic solvents. The problem of environmental pollution, the prepared product will not agglomerate

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  • Method for producing zinc hydroxide nano-wire
  • Method for producing zinc hydroxide nano-wire
  • Method for producing zinc hydroxide nano-wire

Examples

Experimental program
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Embodiment 1

[0021] Weigh 2.195g Zn(Ac) 2 2H 2 O, added to 100ml of absolute ethanol, and refluxed at 80°C until the solid dissolved. Add 0.842g KOH to 100ml of absolute ethanol, and dissolve it by ultrasonication. After the zinc acetate alcoholic solution returns to room temperature and the solution is clear, the potassium hydroxide alcoholic solution and the zinc acetate alcoholic solution are mixed. The above mixed solution was ultrasonicated for 1 hour to obtain a colorless and transparent zinc oxide sol. Slowly drip 10ml of water into 20ml of zinc oxide sol, and after standing for 1 day at room temperature, the layered zinc hydroxide acetate is obtained, and its morphology is analyzed with a transmission electron microscope (TEM). figure 1 . The obtained precipitate was centrifuged and washed three times with alcohol, then centrifuged and washed twice with deionized water, then the supernatant was discarded, and placed in 4 ml of water for 3 days to obtain zinc hydroxide nanowires...

Embodiment 2

[0023] Weigh 2.195g Zn(Ac) 2 2H 2 O, add to 100ml of absolute ethanol, reflux at 78°C until the solid dissolves. Add 0.842g KOH to 100ml of absolute ethanol, and dissolve it by ultrasonication. After the zinc acetate alcoholic solution returns to room temperature and the solution is clear, the potassium hydroxide alcoholic solution and the zinc acetate alcoholic solution are mixed. The above mixed solution was ultrasonicated for 2 hours to obtain a colorless and transparent zinc oxide sol. 10ml of water was slowly dropped into 20ml of zinc oxide sol, and after standing at room temperature for 1 day, layered zinc hydroxide acetate was obtained. The obtained precipitate was centrifuged and washed three times with alcohol, then centrifuged and washed twice with deionized water, then the supernatant was discarded, and placed in 4 ml of water for 1 day to obtain zinc hydroxide nanowires. It was analyzed with a transmission electron microscope (TEM), and its morphology was obser...

Embodiment 3

[0025] Weigh 2.195g Zn(Ac) 2 2H 2 O, added to 100ml of absolute ethanol, and refluxed at 90°C until the solid dissolved. Add 0.842g KOH to 100ml of absolute ethanol, and dissolve it by ultrasonication. After the zinc acetate alcoholic solution returns to room temperature (the solution must be clear), mix the potassium hydroxide alcoholic solution and the zinc acetate alcoholic solution. The above mixed solution was ultrasonicated for 1 hour to obtain a colorless and transparent zinc oxide sol. 10ml of water was slowly dropped into 20ml of zinc oxide sol, and after standing at room temperature for one day, layered zinc hydroxide acetate was obtained. The obtained precipitate was centrifuged and washed 4 times with alcohol, centrifuged and deionized water washed 2 times, then the supernatant was discarded, and placed in 3 ml of water for 4 days to obtain zinc hydroxide nanowires. It was analyzed with a transmission electron microscope (TEM), and its morphology was observed t...

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Abstract

The invention provides a method for preparing a zinc hydroxide nano-wire, which belongs to the technical field of inorganic material preparation process. The method comprises the following steps: dissolving zinc acetate and basic metal hydroxide into absolute ethyl alcohol respectively; adding deionized water into the absolute ethyl alcohol after ultrasonic mixing to prepare a precursor of flaky zinc hydroxide acetate; and centrifugally washing and hydrolyzing the precursor to obtain the zinc hydroxide nano-wire. The surface of the zinc hydroxide prepared subsequently is carried with partial positive electrical charge, and same electrical charges are excluded mutually, so the prepared zinc hydroxide nano-wire has no agglomeration phenomenon. The method has the advantages of simpleness and convenience, safety and low cost, solves the problems of cost and environmental pollution caused by adoption of an organic solvent, can obtain fine zinc hydroxide nano-wire, and can be applied to biology, medicament and other fields.

Description

technical field [0001] The invention belongs to the technical field of inorganic material preparation technology, and relates to a preparation method of zinc hydroxide ultrafine nanowires. Background technique [0002] One-dimensional nanomaterials have a wide range of applications in the fields of catalysis, medicine and biology. For example, the 292nd issue of "Science" reported the world's smallest ultraviolet nanolaser made of zinc oxide nanowires; as Izumi Ichinose et al reported the direct synthesis of chromium hydroxide nanowires in water in "Journal of the American Chemical Society" in 2004 method (J.Am.Chem.Soc.2004, 126, 7162-7163.) and successfully isolated DNA (NanoLett., 2005, 5, 97-100); Luo YH et al. in 2006 in the American Journal of Materials Chemistry reported that organic amines were used as solvents to prepare copper hydroxide nanowires (Chem. Mater., 2006, 18, 1795-1802). [0003] Izumi Ichinose et al reported a method for preparing zinc hydroxide nano...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02
Inventor 庞广生朱诗瑶杨明冯守华
Owner JILIN UNIV
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