A method for preparing zinc oxide nanorods

A zinc oxide nanorod, zinc sulfate technology, applied in zinc oxide/zinc hydroxide, nanotechnology, nanotechnology and other directions, can solve the problems of small aspect ratio, thick diameter, poor dispersion, etc., and achieve high aspect ratio, Short reaction period and good dispersion effect

Inactive Publication Date: 2015-10-14
JIUJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method can solve the problems of large diameter, poor dispersion, and small aspect ratio of ZnO nanorods, thereby increasing its specific surface area and chemical activity, thereby improving its application performance in the fields of high-efficiency catalysts, optoelectronic devices, and gas sensors.

Method used

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  • A method for preparing zinc oxide nanorods

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Experimental program
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Effect test

Embodiment 1

[0014] Weigh zinc sulfate (ZnSO 4 ﹒ 7H 2 O) Put 0.14g into a beaker, add 20ml of deionized water, place the beaker on a magnetic stirrer, stir at room temperature until completely dissolved, then add 0.12g of ammonium bicarbonate to the above solution, and stir magnetically at room temperature until the reaction is complete , centrifuged to get white precipitate Zn 5 (CO 3 ) 2 (OH) 6 ; Pour the above precipitate into a three-necked flask, measure 2ml oleic acid, 4ml oleylamine and 4ml 1-octadecene into the three-necked flask, stir magnetically, vacuumize, heat the mixture in the three-necked flask to 120°C with an electric heating mantle, and keep it warm 30min; pass into N 2 gas, under magnetic stirring and N 2 Under protection, the mixed solution was rapidly heated to 280°C, kept for 45 minutes, and then cooled to room temperature naturally. Add absolute ethanol to the obtained mixture, centrifuge to obtain a precipitate, wash again with absolute ethanol, centrifuge,...

Embodiment 2

[0016] Weigh zinc sulfate (ZnSO 4 ﹒ 7H 2 O) Put 0.14g into a beaker, add 20ml of deionized water, place the beaker on a magnetic stirrer, stir at room temperature until completely dissolved, then add 0.20g of ammonium bicarbonate to the above solution, and stir magnetically at room temperature until the reaction is complete , centrifuged to obtain a white precipitate; pour the above precipitate into a three-necked flask, measure 2ml oleic acid, 2ml oleylamine and 8ml 1-octadecene into the three-necked flask, magnetically stir, vacuumize, and use an electric heating mantle to heat the three-necked flask to mix solution to 120°C and keep it warm for 30min; 2 gas, under magnetic stirring and N 2 Under protection, the mixed solution was rapidly heated to 280°C, kept for 45 minutes, and then cooled to room temperature naturally. Add absolute ethanol to the obtained mixture, centrifuge to obtain a precipitate, wash again with absolute ethanol, centrifuge, and dry to obtain a rod...

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Abstract

The invention relates to a method for preparing a zinc oxide nanorod. The method comprises the following steps: by using zinc sulfate as a raw material, ammonium hydrogen carbonate as a precipitant and water as a solvent, obtaining a Zn5(CO3)2(OH)6 precursor precipitate by virtue of a direct precipitation method; after centrifugal separation of the Zn5(CO3)2(OH)6 precursor precipitate, adding into a mixed solvent of oleic acid, oleylamine and 1-octadecene, and heating to 120 DEG C and carrying out heat preservation for 30 minutes under a vacuum condition; then introducing nitrogen into a reaction system for protection, stirring and heating a reaction mixture to 280 DEG C, carrying out heat preservation for 45 minutes, and naturally cooling to room temperature; and washing by using absolute ethyl alcohol and carrying out centrifugal separation on the reaction product twice, and naturally drying to obtain the rod-like zinc oxide nano material with the diameter of 12-18nm and the length of 180-200nm, wherein the molar ratio of zinc sulfate and ammonium hydrogen carbonate is 1 to (2-5) and the volume ratio of oleic acid, oleylamine and 1-octadecene is 1 to (1-2) to (2-4). The method provided by the invention is simple and convenient in process, short in reaction period, high in yield and suitable for scale production.

Description

technical field [0001] The invention relates to a preparation method of zinc oxide nanorods, belonging to the technical field of inorganic nanometer materials. Background technique [0002] Zinc oxide is an important II-VI wide-bandgap semiconductor. Due to quantum size effects and surface interface effects, nano-zinc oxide materials exhibit many special properties in magnetism, electricity, optics, and mechanics. They are used in high-efficiency catalysts, Optoelectronic devices, gas sensors and other optoelectronic fields have broad application prospects. One-dimensional rod-shaped zinc oxide nanomaterials, especially nanorods with small diameter, large aspect ratio and good dispersion, not only greatly improve and improve their performance due to their large specific surface area and excellent electron transport performance, It can also further broaden their applications in the fields of catalysts and sensors. Therefore, how to prepare one-dimensional ZnO nanomaterials ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G9/02B82Y30/00
CPCB82Y30/00C01G9/02C01P2004/16C01P2004/64
Inventor 王殿元郭艳艳王芳赵鑫
Owner JIUJIANG UNIV
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