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Nanometer zinc oxide material and preparation method thereof

A nano-zinc oxide and zinc source technology, applied in the direction of zinc oxide/zinc hydroxide, nanotechnology, etc., can solve the problems of poor economic practicability, long synthesis process time, etc., to achieve easy expansion of industrial production and strengthen solvent effect , The effect of cheap raw materials

Active Publication Date: 2018-03-23
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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  • Nanometer zinc oxide material and preparation method thereof
  • Nanometer zinc oxide material and preparation method thereof
  • Nanometer 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 them in 40ml of water, add 0.6g of surfactant polyvinylpyrrolidone, perform ultrasonic vibration and dissolve for 30min, then add them to a 60ml reaction kettle, and put them in the oven In the reaction at 120°C for 12 hours, a white powder was obtained. 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 was evaporated in an oven at 60°C to obtain a viscous light yellow ionic liquid.

Embodiment 2

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

Embodiment 3

[0038]According to the method of Example 1, the 0.6g surfactant added therein is changed to tetradecyltrimethylammonium bromide, hexadecyltrimethylammonium bromide, sodium dodecylsulfonate to obtain white oxide zinc powder. Among them, hexadecyltrimethylammonium bromide is zinc oxide with dumbbell shape like polyvinylpyrrolidone, while tetradecyltrimethylammonium bromide is zinc oxide with fluffy dumbbell shape. 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 nanometer zinc oxide material and a preparation method thereof. During preparation, zinc oxide with various shapes can be regulated and synthesized 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] At present, there are various methods for synthesizing ZnO 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 consume a lot of energy, the cost of operating equipment is high, or ammonia water or strong alkali is required as a pH regulator during the operation pr...

Claims

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Application Information

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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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