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A kind of nano zinc oxide material and preparation method thereof

A nano-zinc oxide and zinc nitrate technology, which is applied in the direction of zinc oxide/zinc hydroxide, nanotechnology, etc., can solve the problems of long synthesis process time and poor economic practicability, and achieve enhanced solvent effect, small environmental hazards, The effect of cheap raw materials

Active Publication Date: 2020-05-12
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In short, ammonia water or sodium hydroxide is commonly used as one of the synthesis reactants in the synthesis of zinc oxide, which is prone to produce secondary pollutants, and the synthesis process takes a long time and is not economically practicable.

Method used

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  • A kind of nano zinc oxide material and preparation method thereof
  • A kind of nano zinc oxide material and preparation method thereof
  • A kind of nano zinc oxide material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Weigh 4mmol of zinc nitrate and 8mmol of 2-methylimidazole and dissolve into 40ml of water, add 0.6g of surfactant polyvinylpyrrolidone, dissolve it under ultrasonic shaking for 30min, then add it to a 60ml reactor and place it in the oven. In the process, the reaction was carried out at 120°C for 12 hours to obtain a white powder. The powder was washed three times with alcohol and ultrapure water, and then dried at 80°C for one day to obtain a dumbbell-shaped white zinc oxide powder. At the same time, the solvent after the reaction is evaporated under a 60°C oven to obtain a viscous light yellow ionic liquid.

Embodiment 2

[0036] According to the method of Example 1, the added 2-methylimidazole was changed to 4mmol, 6mmol, 8mmol, 10mmol, 12mmol, 14mmol to obtain white zinc oxide powder with dumbbell-shaped morphology.

Embodiment 3

[0038] According to the method of Example 1, the 0.6g surfactants added therein were changed to tetradecyl trimethyl ammonium bromide, cetyl trimethyl ammonium bromide, and sodium dodecyl sulfonate to obtain white oxidation Zinc powder. Among them, cetyltrimethylammonium bromide is also zinc oxide with dumbbell-shaped morphology like polyvinylpyrrolidone, and tetradecyltrimethylammonium bromide is zinc oxide with dumbbell-shaped morphology, dodecane Sodium sulfonate is a zinc oxide material with a spherical shape.

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Abstract

The invention belongs to the technical field of material synthesis, and particularly relates to a nanometer zinc oxide material and a preparation method thereof. According to the method, ionic liquidprecursor 2-methylimidazole is taken as a guiding agent, a zinc source is taken as a metal source, the reaction temperature is controlled to be 80 to 160 DEG C, a thermal reaction is performed based on a solvent for 40min to 24 hours, zinc oxide with different characteristics and shapes can be induced and formed, and meanwhile, ionic liquid wide in application can be obtained. According to the method, a surfactant is used, and meanwhile various reaction conditions are controlled to obtain zinc oxide materials with different shapes. The method has the advantages of being simple in shape control, rapid in synthesis, green and economical in reaction process, free of secondary pollution, large in synthesis product quantity and highly easy in expansion of industrial production, and a prospective synthesis method is provided for the induced synthesis of oxide through the ionic liquid precursor.

Description

Technical field: [0001] The invention belongs to the technical field of material synthesis, and relates to a nano zinc oxide material and a preparation method thereof. During preparation, the synthesis of zinc oxide with various morphologies can be controlled and controlled by controlling reaction conditions. Background technique: [0002] Zinc oxide is an N-type semiconductor with a band gap of 3.34ev and excellent performance. It is widely used in zinc-air batteries, antibacterial materials, environmental adsorption materials, photocatalytic degradation and other fields. [0003] There are various methods for synthesizing zinc oxide materials, including electric field driving method, sol-gel method, vapor deposition method, microwave method, epitaxial growth method, and hydrothermal method. However, these traditional methods generally have high energy consumption, high operating equipment costs, or the need for ammonia or strong alkali as a pH regulator during the operation, whic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G9/02B82Y40/00
CPCB82Y40/00C01G9/02C01P2002/72C01P2002/88C01P2004/03C01P2004/04C01P2004/30C01P2004/32
Inventor 杨志辉黄磊王海鹰柴立元吴延婧杨卫春唐崇俭李青竹闵小波刘恢
Owner CENT SOUTH UNIV
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