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Nitrogen-doped PHCS-Zn2In2S5 composite photocatalyst as well as preparation method and application thereof

A phcs-zn2in2s5, composite light technology, applied in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, chemical instruments and methods, etc. Good antibacterial properties, stable performance, low cost effect

Pending Publication Date: 2022-04-26
HENAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the nanocomposite material prepared in this patent cannot effectively absorb phenol and its compounds

Method used

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  • Nitrogen-doped PHCS-Zn2In2S5 composite photocatalyst as well as preparation method and application thereof
  • Nitrogen-doped PHCS-Zn2In2S5 composite photocatalyst as well as preparation method and application thereof
  • Nitrogen-doped PHCS-Zn2In2S5 composite photocatalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A nitrogen-doped PHCS-Zn 2 In 2 S 5 The preparation method of composite photocatalyst, concrete steps are as follows:

[0039] (1) Dissolve 2 mmol of zinc sulfate heptahydrate and 2 mmol of indium chloride hexahydrate in 50 mL of a mixed solvent, and stir until the solution is clear to obtain solution A. The mixed solvent is 30 mL of deionized water and 20 mL of glycerin Alcohol mixed solvent;

[0040] (2) Weigh sodium lauryl sulfate (0.006 g), glucose (0.288 g), and melamine (0.009 g), and dissolve them in 10 mL of deionized water in turn, and stir until uniform to obtain solution B;

[0041] (3) Add solution B in step (2) to solution A in step (1), then add 10 mmol thioacetamide (TAA), keep stirring for 2 h, then transfer to 100 mL polytetrafluoroethylene for high pressure reaction In the kettle, hydrothermal reaction was carried out at 160 °C for 12 h. After the reaction, it was naturally cooled to room temperature and centrifuged to obtain a yellow precipitate. ...

Embodiment 2

[0043] Nitrogen-doped PHCS-Zn in embodiment 2 2 In 2 S 5 The difference between the preparation method of the composite photocatalyst and Example 1 is that by changing the amount of glucose in step (2), the hollow glucose microspheres PHCS and the ternary sulfide Zn 2 In 2 S 5 The mass ratio of glucose was 0.0576 g, and the obtained product was denoted as CZS-1.

[0044] In step (3), the hydrothermal reaction temperature is 150° C., and the reaction time is 18 hours.

Embodiment 3

[0046] Nitrogen-doped PHCS-Zn in embodiment 3 2 In 2 S 5 The difference between the preparation method of the composite photocatalyst and Example 1 is that the dosage of glucose in step (2) is 0.576 g, and the obtained product is denoted as CZS-10.

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Abstract

The invention belongs to the technical field of semiconductor photocatalytic materials, and particularly relates to a nitrogen-doped PHCS-Zn2In2S5 composite photocatalyst as well as a preparation method and application thereof. A one-step hydrothermal synthesis method is provided by improving a synthesis method of a visible light response ternary sulfide ZnmIn2Sm + 3 catalyst, Zn2In2S5 is self-grown on nitrogen-containing hollow glucose microspheres, modification of the ternary sulfide Zn2In2S5 is realized, and the nitrogen-doped PHCS-Zn2In2S5 nano composite material is prepared and serves as a composite photocatalyst, so that the nitrogen-doped PHCS-Zn2In2S5 nano composite material can be used for preparing the visible light response ternary sulfide ZnmIn2Sm < + 3 > / ZnmIn2Sm < + 3 > / ZnmIn2Sm < + 3 > / ZnmIn2Sm < + 3 > / ZnmIn2Sm < + 3 > / Zn2In2S5 composite photocatalyst. The method is used for efficiently degrading phenol wastewater and bisphenol A wastewater and generating H2O2 in situ. The composite photocatalyst PHCS-Zn2In2S5 prepared by the preparation method disclosed by the invention is stable in performance and low in cost, and has a good market application prospect. The composite photocatalyst PHCS-Zn2In2S5 disclosed by the invention lays a foundation for application in the field of environmental improvement.

Description

technical field [0001] The invention belongs to the technical field of semiconductor photocatalytic materials, and uses nitrogen-doped hollow glucose microspheres (PHCS) to modify ternary sulfide Zn 2 In 2 S 5 One-step Synthesis of PHCS-Zn by Hydrothermal Method 2 In 2 S 5 Nanocomposites and as semiconductor photocatalysts for efficient degradation of phenol wastewater and in situ generation of H 2 o 2 , specifically relates to a nitrogen-doped PHCS-Zn 2 In 2 S 5 Composite photocatalyst, its preparation method and application. Background technique [0002] As the basic raw materials in the synthesis of organic matter, phenol and its compounds are widely used in petrochemical, oil refining, pesticide, resin, plastic, medicine, leather, textile and paper making industries. Phenolic wastewater entering water or soil will affect the growth and reproduction of organisms and the safety of human drinking water. The U.S. Environmental Protection Agency regards phenolic com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/02B01J27/24B01J27/04C02F1/30C02F1/50C02F101/34
CPCB01J31/0207B01J27/24B01J27/04C02F1/30C02F1/50C02F2305/10C02F2101/345C02F2303/04B01J35/39B01J35/23
Inventor 孙剑辉杜翠伟冯薇薇聂士雨张晶王宗舞
Owner HENAN NORMAL UNIV
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