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Black zinc oxide and quick preparation method thereof

A zinc oxide, black technology, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problem that the proportion of ultraviolet light is less than 5%, and achieve good dispersion, low cost, The effect of strong light absorption

Pending Publication Date: 2018-11-16
ZHENGZHOU BAK BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the band gap of pure phase ZnO 3.2 eV, it can only respond to ultraviolet light, which accounts for less than 5% of solar energy.
However, the method of preparing black ZnO by C and N co-doping is rarely heard

Method used

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  • Black zinc oxide and quick preparation method thereof
  • Black zinc oxide and quick preparation method thereof
  • Black zinc oxide and quick preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of quick preparation method of black zinc oxide, comprises the following steps:

[0022] (1) Weigh 2.9g of zinc nitrate solid, then mix and grind the weighed zinc nitrate solid with 0.6g of urea; add 0.2g of citric acid as a foaming agent during the grinding process, add two drops of glycerin, and grind The precursor can be prepared after forming a slurry;

[0023] (2) Put the precursor prepared in step (1) into the preheated muffle furnace, where the preheated temperature in the muffle furnace is 600°C, and take it out of the crucible after calcination for 18 minutes, namely Available in black zinc oxide.

Embodiment 2

[0025] A kind of quick preparation method of black zinc oxide, comprises the following steps:

[0026] (1) Weigh 1.5g of zinc nitrate solid, then mix and grind the weighed zinc nitrate solid with 2.9g of urea; add 0.6g of citric acid as a foaming agent during the grinding process, add two drops of glycerin, and grind The precursor can be prepared after forming a slurry;

[0027] (2) Put the precursor prepared in step (1) into the preheated muffle furnace, where the preheated temperature in the muffle furnace is 800°C, and take it out of the crucible after calcination for 10 minutes, namely Available in black zinc oxide.

Embodiment 3

[0029] A kind of quick preparation method of black zinc oxide, comprises the following steps:

[0030] (1) Weigh 2.5g of zinc sulfate solid, then mix and grind the weighed zinc sulfate solid with 0.8g of urea; add 0.5g of citric acid as a foaming agent during the grinding process, add two drops of glycerin, and grind The precursor can be prepared after forming a slurry;

[0031] (2) Put the precursor prepared in step (1) into the preheated muffle furnace, where the preheated temperature in the muffle furnace is 900°C, and take it out of the crucible after calcination for 20 seconds, namely Available in black zinc oxide.

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PUM

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Abstract

The invention provides a black zinc oxide, which is co-doped with C and N, capable of absorbing visible light of all bands, and has black color. The quick preparation method of the black zinc oxide comprises the following steps: (1) a proper amount of zinc source is weighed and ground together with urea; a proper amount of foaming agent and two drops of glycerol are added during the grinding process, and a precursor is obtained after grinding the mixture into slurry; (2) the precursor obtained in the step (1) is put into a pre-heated muffle furnace, and the black zinc oxide can be obtained after calcination for a period of time. The invention has the advantages of simple operation and short time consumption. The obtained zinc oxide has uniform particle size, good dispersion and strong ultraviolet shielding performance, therefore, the photocatalytic ability of the zinc oxide is improved.

Description

technical field [0001] The invention relates to the field of new materials, in particular to a black zinc oxide and a rapid preparation method thereof. Background technique [0002] With the continuous advancement of the industrialization process, while development has brought great convenience to mankind, it has also brought a series of by-products such as energy depletion and environmental degradation, among which water pollution has seriously threatened human health. In recent years, the emerging photocatalytic technology has appeared in people's field of vision because of its advantages of energy saving, environmental protection and high degradation efficiency. Photocatalysts can use electrons and holes generated by semiconductors to absorb photons to carry out redox reactions with organic substances. As a classic semiconductor material, ZnO is often used to prepare photocatalysts. This is inseparable from its advantages of simple preparation, low cost and stability. ...

Claims

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Application Information

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IPC IPC(8): B01J27/24B01J35/00B01J35/02
CPCB01J27/24B01J35/40B01J35/39
Inventor 王玉媛贾秋荣张性双
Owner ZHENGZHOU BAK BATTERY CO LTD
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