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A kind of method for preparing hollow flower-shaped zinc hydroxide

A zinc hydroxide and hollow flower technology, applied in the direction of zinc oxide/zinc hydroxide, etc., can solve the problems of unfavorable large-scale production, high requirements for equipment and operating conditions, complicated zinc oxide methods, etc., and achieve low price, simple operation, good repeatability

Active Publication Date: 2017-06-20
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems that the existing methods for preparing zinc oxide are complicated, have high requirements on equipment and operating conditions, and are not conducive to large-scale production, and provide a method for preparing hollow flower-shaped zinc hydroxide

Method used

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  • A kind of method for preparing hollow flower-shaped zinc hydroxide
  • A kind of method for preparing hollow flower-shaped zinc hydroxide
  • A kind of method for preparing hollow flower-shaped zinc hydroxide

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specific Embodiment approach 1

[0023] Specific embodiment one: present embodiment is a kind of method for preparing hollow flower-shaped zinc hydroxide is finished according to the following steps:

[0024] 1. Add zinc sulfate to absolute ethanol, and then ultrasonically disperse at an ultrasonic power of 200W to 450W for 30min to 360min to obtain an ethanol dispersion of zinc sulfate crystals;

[0025] The mass of zinc sulfate described in step 1 and the volume ratio of dehydrated alcohol are (0.01g~1.3g): 10mL;

[0026] 2. Add ammonia water with a concentration of 0.12mol / L to 0.24mol / L to the ethanol dispersion of zinc sulfate crystals, stir evenly, and then place it at room temperature for 5min to 420min, then use deionized water as a cleaning agent, and centrifuge The speed is 2000r / min~4000r / min, centrifuged and washed 3 times~5 times to obtain hollow flower-shaped zinc hydroxide;

[0027] The concentration described in step 2 is that the volume ratio of the ammoniacal liquor of 0.12mol / L~0.24mol / L a...

specific Embodiment approach 2

[0035] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in step 1, zinc sulfate is added to absolute ethanol, and then ultrasonically dispersed for 360 min at an ultrasonic power of 350 W to obtain an ethanol dispersion of zinc sulfate crystals. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0036] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the volume ratio of the quality of zinc sulfate described in step 1 to absolute ethanol is (0.01g-0.1g): 10mL. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a method used for preparing zinc hydroxide, and a method used for preparing zinc oxide from zinc hydroxide, and more specifically discloses a method used for preparing hollow flower-like zinc hydroxide, and a method used for preparing hollow flower-like zinc oxide from hollow flower-like zinc hydroxide. The methods are used for solving problems of the prior art that conventional zinc oxide preparation methods are complex, requirements on equipment and operation conditions are high, and the conventional methods are not beneficial for large scale production. The method used for preparing hollow flower-like zinc hydroxide comprises following steps: 1, an ethanol dispersion solution of zinc sulfate crystal is prepared; and 2, ammonium hydroxide is added into the ethanol dispersion solution of zinc sulfate crystal, an obtained mixture is stirred, and an obtained solid substance is washed. In the method used for preparing hollow flower-like zinc oxide from hollow flower-like zinc hydroxide, hollow flower-like zinc oxide is obtained via 6 to 12h of calcinations of hollow flower-like zinc hydroxide in a tube furnace at 130 to 400 DEG C. The method used for preparing hollow flower-like zinc oxide is simple in operation, high in repeatability, and low in cost.

Description

technical field [0001] The invention relates to a method for preparing zinc hydroxide. [0002] technical background [0003] Zinc oxide is an important semiconductor functional material, which has the advantages of low price, non-toxicity, biodegradability and biocompatibility, and has attracted extensive attention from researchers. Zinc oxide is widely used in gas sensors, solar cells, field emitters, Supercapacitors, photocatalysis and other aspects have a wide range of applications, and have very broad application prospects. The preparation methods of zinc oxide mainly include vapor deposition method, hydrothermal method, microemulsion method, template method, electrochemical deposition method, sol-gel method, microwave method, solid state reaction method and so on. These methods are complex and require relatively high equipment and operating conditions, which is not conducive to large-scale production. Contents of the invention [0004] The purpose of the present inv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G9/02C01G9/03
CPCC01G9/02C01G9/03C01P2004/03C01P2004/30
Inventor 韩晓军苏迎春
Owner HARBIN INST OF TECH