Bar type zinc oxide granule, preparation method and usage

A technology of zinc oxide particles and rods, which is applied in the field of rod-shaped one-dimensional zinc oxide particles and its liquid phase preparation, can solve the problems of small length and diameter of ZnO rods, harsh experimental conditions, complicated preparation process, etc., and achieve mild reaction conditions and simple preparation Ease of operation and high product purity

Inactive Publication Date: 2004-10-27
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the preparation process of the above preparation method is complicated, the requirements for equipment are strict, the temperature requirements are high, the experimental conditions are harsh, and post-processing is required, and the long-diameter ratio of the obtained ZnO rods is relatively small.

Method used

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  • Bar type zinc oxide granule, preparation method and usage
  • Bar type zinc oxide granule, preparation method and usage
  • Bar type zinc oxide granule, preparation method and usage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Heat 10ml of secondary water to 90°C, add triethanolamine and zinc acetate solution with a molar concentration ratio of 1:1 to this solvent at the same time, so that the initial molar ratio of triethanolamine-zinc acetate is 1:1 , the dropping time is 20 minutes, stirred and reacted at this temperature for 30 minutes, aged for 2.0 hours, a white turbid solution was obtained, centrifuged, and the obtained centrifuged product was vacuum-dried to obtain rod-shaped one-dimensional zinc oxide particles with a diameter of 200-400 Nanometer, the length can reach 2 microns to 5 microns, and the aspect ratio is in the range of 5 to 20, which can be used to prepare materials for atomic force microscopes and scanning tunneling microscopes. See attached figure 1 .

Embodiment 2

[0031] Heat 8mL of secondary water to 60°C, add triethanolamine and zinc acetate solution with a molar concentration ratio of 2:1 to this solvent at the same time, so that the initial molar ratio of triethanolamine-zinc acetate is 2:1 , the dropping time is 10 minutes, maintain this temperature and stir for 120 minutes, aging for 1.0 hour, a white turbid solution is obtained, centrifuged, and the obtained centrifuged product is vacuum-dried to obtain rod-shaped zinc oxide particles with a diameter of 30-60 nanometers , the length can reach 60 nanometers to 120 nanometers, and the aspect ratio is in the range of 1 to 4, which can be used to prepare materials for optoelectronic devices. See attached figure 2 .

Embodiment 3

[0033] Heat 15mL of secondary water to 90°C, add triethanolamine and zinc acetate solution with a molar concentration ratio of 40:1 to the solvent at the same time, so that the initial molar ratio of triethanolamine-zinc acetate is 40:1 , the dropping time is 25 minutes, maintain this temperature and stir for 60 minutes, age for 1.0 hour to obtain a white turbid solution, centrifuge, and vacuum-dry the obtained centrifuged product to obtain rod-shaped zinc oxide particles with a diameter of up to 600 nanometers and a length of It can reach 1-2 microns, and the length-to-diameter ratio is in the range of 1-4, and can be used to prepare chemical sensor materials. See attached image 3 .

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Abstract

A rod-shaped zinc oxdie particle (tens nm-several microns) is prepared through preparing the aqueous solution of zinc salt, preparing the aqueous solution of ammonium alcoholate, proportionally mixing them in the preheated secondary water solvent, reaction, ageing, and centrifugal separation. It can be used for preparing photoelectric device, chemical sensor, atomic microscope, or scan tunnel microscope.

Description

technical field [0001] The invention belongs to the field of semiconductor inorganic materials, in particular to rod-shaped one-dimensional zinc oxide (ZnO) particles with a length of tens of nanometers to several micrometers and a liquid-phase preparation method and application thereof. Background technique [0002] ZnO, commonly known as zinc white, as a semiconductor with a wide bandgap, is a highly functional fine inorganic material that has been studied more. Due to its excellent physical and chemical properties, it is widely used in ceramic materials, photoelectric devices, catalysis, varistors, chemicals, coatings, Rubber industry, pharmaceutical and cosmetic industries can be widely used. At present, due to the important influence of structure (microstructure), size and shape on material properties and applications, research on shape control of inorganic materials has aroused great interest. This not only requires the full use of the intrinsi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02
Inventor 唐芳琼夏海龙
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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