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Efficient photocatalyst and preparation method thereof

A photocatalyst and high-efficiency technology, applied in chemical instruments and methods, physical/chemical process catalysts, organic compounds/hydrides/coordination complex catalysts, etc., can solve the problems of small loading and high cost

Inactive Publication Date: 2021-04-27
泗县唯澳生物技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the use of noble metal silver, its cost is high; in addition, it also has the disadvantages of small loading and photocatalytic efficiency that needs to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] A kind of preparation method of efficient photocatalyst is characterized in that, comprises the steps:

[0025] Step S1, 4-(chloromethyl)benzophenone ionization 4,4'-bis[4-(di-p-tolylamino)styryl]biphenyl: 4-(chloromethyl)benzophenone Add ketone and 4,4'-bis[4-(xylylamino)styryl]biphenyl to the organic solvent, stir and react at 40-60°C for 6-8 hours, then remove the solvent by rotary evaporation, and use Wash the product with ether for 3-6 times, and remove the ether by rotary evaporation to obtain 4-(chloromethyl)benzophenone ionized 4,4'-bis[4-(di-p-tolylamino)styryl]biphenyl ;

[0026] Step S2, m-cyanobenzyl chloride ionization hyperbranched poly-1,5-diaminoanthraquinone: add m-cyano-benzyl chloride, hyperbranched poly-1,5-diaminoanthraquinone, and basic catalyst to dimethyl sulfoxide , stirred and reacted at 50-70°C for 8-10 hours, then precipitated in water, and washed the precipitated polymer with ether for 4-7 times, and then removed the ether by rotary evapor...

Embodiment 1

[0048] A kind of preparation method of efficient photocatalyst is characterized in that, comprises the steps:

[0049] Step S1, 4-(chloromethyl)benzophenone ionization 4,4'-bis[4-(di-p-tolylamino)styryl]biphenyl: 4-(chloromethyl)benzophenone Add ketone and 4,4'-bis[4-(xylylamino)styryl]biphenyl to the organic solvent, stir and react at 40°C for 6 hours, then remove the solvent by rotary evaporation, and wash the product 3 with diethyl ether After that, the ether was removed by rotary evaporation to obtain 4-(chloromethyl)benzophenone ionized 4,4'-bis[4-(di-p-tolylamino)styryl]biphenyl;

[0050] Step S2, m-cyanobenzyl chloride ionization hyperbranched poly-1,5-diaminoanthraquinone: add m-cyano-benzyl chloride, hyperbranched poly-1,5-diaminoanthraquinone, and basic catalyst to dimethyl sulfoxide , stirred and reacted at 50°C for 8 hours, then precipitated in water, washed the precipitated polymer with ether for 4 times, and removed the ether by rotary evaporation to obtain m-cy...

Embodiment 2

[0057] A kind of preparation method of efficient photocatalyst is characterized in that, comprises the steps:

[0058] Step S1, 4-(chloromethyl)benzophenone ionization 4,4'-bis[4-(di-p-tolylamino)styryl]biphenyl: 4-(chloromethyl)benzophenone Add ketone and 4,4'-bis[4-(xylylamino)styryl]biphenyl to the organic solvent, stir and react at 45°C for 6.5 hours, then remove the solvent by rotary evaporation, and wash the product 4 with diethyl ether After that, the ether was removed by rotary evaporation to obtain 4-(chloromethyl)benzophenone ionized 4,4'-bis[4-(di-p-tolylamino)styryl]biphenyl;

[0059] Step S2, m-cyanobenzyl chloride ionization hyperbranched poly-1,5-diaminoanthraquinone: add m-cyano-benzyl chloride, hyperbranched poly-1,5-diaminoanthraquinone, and basic catalyst to dimethyl sulfoxide , stirred and reacted at 55°C for 8.5 hours, then precipitated in water, washed the precipitated polymer with ether for 5 times, and removed the ether by rotary evaporation to obtain ...

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PUM

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Abstract

The invention discloses a preparation method of a high-efficiency photocatalyst, which is characterized by comprising the following steps: S1, ionizing 4,4'-bis[4-(di-p-tolylamino)styryl]biphenyl by 4-chloromethylbenzophenone; S2, ionizing hyperbranched poly(1,5-diaminoanthraquinone) by 3-(chloromethyl)benzonitrile; and S3, forming the photocatalyst. The invention also provides the high-efficiency photocatalyst prepared by the preparation method of the high-efficiency photocatalyst. The efficient photocatalyst provided by the invention is wider in visible light response range, higher in photocatalytic activity, better in stability, longer in active life and lower in manufacturing cost.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a high-efficiency photocatalyst and a preparation method thereof. Background technique [0002] With the rapid development of social economy and the continuous acceleration of the global industrialization process, environmental and energy issues are still major issues facing and urgently to be solved in the sustainable development of contemporary human beings. Due to its cheap, clean, renewable and other advantages, the development and utilization of solar energy has become the focus of attention in the industry. In recent years, solar energy has been widely used in the field of photocatalytic technology. Photocatalytic technology is a technology that uses ultraviolet light and visible light to photocatalytically degrade pollutants. It can use photoreaction to convert organic pollutants into environmentally friendly products in a short time. With the advantages of less second...

Claims

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Application Information

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IPC IPC(8): B01J31/22B01J31/06B01J27/24B01J21/06C02F1/30C02F101/34C02F101/36C02F101/38
CPCB01J31/1691B01J31/064B01J31/069B01J27/24B01J21/066C02F1/30C02F2305/10C02F2101/308C02F2101/34C02F2101/36C02F2101/38B01J35/39
Inventor 程淑芹黄志云
Owner 泗县唯澳生物技术开发有限公司
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