Preparation method of aluminum-doped zinc oxide nano powder

A technology of aluminum-doped zinc oxide and nano-powders, which is applied in chemical instruments and methods, zinc oxide/zinc hydroxide, and other chemical processes, and can solve the problems of high cost, complex process of aluminum-doped zinc oxide nano-powders, Problems such as particle size and dispersibility are not easy to control, so as to achieve the effect of low cost, preventing powder agglomeration and growth, and good dispersibility

Active Publication Date: 2015-07-01
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

[0004] The preparation of aluminum-doped zinc oxide nanopowder by the above method is co

Method used

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  • Preparation method of aluminum-doped zinc oxide nano powder
  • Preparation method of aluminum-doped zinc oxide nano powder
  • Preparation method of aluminum-doped zinc oxide nano powder

Examples

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Embodiment 1

[0025] Weigh 0.1 mole of zinc nitrate, 0.002 mole of aluminum nitrate, 0.4 mole of urea, and 0.03 mole of glucose and dissolve them in distilled water to prepare a solution, and place the solution on a temperature-controllable electric furnace for heating. The solution decomposes after volatilization and concentration to obtain precursor powder. The precursor powder was reacted in a furnace at 700° C. and air atmosphere for 1 hour to obtain aluminum-doped zinc oxide nanopowder with mesoporous structure. The particle size of the obtained powder is 30-60 nm, and it takes 15 minutes for the adsorbent with a concentration of 1 g / L to degrade 20 ppm of methyl orange pollutants.

Embodiment 2

[0027] Weigh 0.1 mol of zinc nitrate, 0.004 mol of aluminum nitrate, 0.42 mol of urea, and 0.025 mol of glucose and dissolve them in distilled water to prepare a solution, and heat the solution on a temperature-controllable electric furnace. The solution decomposes after volatilization and concentration to obtain precursor powder. The precursor powder was reacted in a furnace at 700° C. and air atmosphere for 1 hour to obtain aluminum-doped zinc oxide nanopowder with mesoporous structure. The particle size of the obtained powder is 20-50 nm, and it takes 5 minutes for the adsorbent with a concentration of 1 g / L to degrade 20 ppm of methyl orange pollutants.

Embodiment 3

[0029] Weigh 0.1 mol of zinc nitrate, 0.008 mol of aluminum nitrate, 0.43 mol of urea, and 0.03 mol of glucose and dissolve them in distilled water to prepare a solution, and heat the solution on a temperature-controllable electric furnace. The solution decomposes after volatilization and concentration to obtain precursor powder. The precursor powder was reacted in a furnace at 500° C. and air atmosphere for 1 hour to obtain aluminum-doped zinc oxide nanopowder with mesoporous structure. The particle size of the obtained powder is 15-35 nm, and it takes 3 minutes for the adsorbent with a concentration of 1 g / L to degrade 20 ppm of methyl orange pollutants.

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Abstract

The invention relates to a method for producing aluminum-doped zinc oxide nano powder, and belongs to the technical field of the preparation of a nano material. The preparation method comprises the following technological processes: (1) preparing a solution from zinc nitrate, aluminum nitrate, amine organic matters and adjuvant according to certain proportions; (2) heating the solution, and carrying out reaction after the solution is volatilized and concentrated so as to obtain precursor powder; and (3) reacting the precursor powder in air within a temperature range of 400-800 DEG C for 1-5h so as to obtain the aluminum-doped zinc oxide nano powder. The preparation method disclosed by the invention is simple in process, low in cost and easy in industrialization; and the prepared aluminum-doped zinc oxide nano powder is fine in crystalline grain, good in dispersity and controllable in grain size, and the nano powder has a mesoporous structure and is applicable to the fields of organic pollutant adsorption and the like.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial preparation, and in particular relates to a method for producing aluminum-doped zinc oxide nanopowder. Background technique [0002] Zinc oxide is a wide bandgap n-type semiconductor, its bandgap Eg=3.37eV at room temperature, has a hexagonal wurtzite crystal structure, and is prone to defects and impurity doping. Among them, aluminum-doped zinc oxide has excellent properties in light, electricity, magnetism, and chemistry due to its unique structure and properties, and is widely used in optoelectronic materials, photocatalysts, radar wave absorbing materials, and ultraviolet shielding. It has broad application prospects in the preparation of agents, sensor materials and antibacterial materials. And it can also be used as a functional filler for materials such as plastics, coatings, fibers, etc., which can endow them with antistatic, electromagnetic shielding and other properties. In additi...

Claims

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Application Information

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IPC IPC(8): B01J20/08C01G9/02
Inventor 秦明礼吴昊阳贾宝瑞李小丽陈鹏起曲选辉
Owner UNIV OF SCI & TECH BEIJING
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