Preparation method, product and application of an oxygen-deficient titanium disulfide@carbon nanodisk photocatalytic material

A photocatalytic material, titanium disulfide technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve problems such as ecological and environmental damage, and achieve easy operation, simple preparation process, large ratio The effect of surface area

Active Publication Date: 2022-07-01
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of commercial dyes are discharged every year. These dyes are chemically stable and cause great harm to the ecological environment

Method used

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  • Preparation method, product and application of an oxygen-deficient titanium disulfide@carbon nanodisk photocatalytic material
  • Preparation method, product and application of an oxygen-deficient titanium disulfide@carbon nanodisk photocatalytic material
  • Preparation method, product and application of an oxygen-deficient titanium disulfide@carbon nanodisk photocatalytic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An oxygen-deficient titanium disulfide@carbon nanodisk photocatalytic material is prepared according to the following steps:

[0028] Step 1: Add 0.02 mmol of tetrabutyl titanate to 10 mL of oleylamine, stir magnetically, then pass argon into it for 30 min, and gradually heat the solution to 120 °C to fully mix the solution;

[0029] The second step: inject 1 mL of dodecyl mercaptan into the above solution, stir magnetically for 60 min at this temperature, then heat to 300 °C, keep the reaction mixture at this temperature for 20 min, and then naturally cool to room temperature ;

[0030] The third step: drop the solution obtained in the second step into liquid pentane, centrifuge the precipitate, and dry the obtained product in a vacuum oven at 60 °C to obtain titanium disulfide@C nanodiscs;

[0031] Step 4: The pure titanium disulfide@C nanodisks were placed in a hydrogen atmosphere and calcined at 350 °C for 2 h at a heating and cooling rate of 1 °C / min to obtain oxy...

Embodiment 2

[0034] An oxygen-deficient titanium disulfide@carbon nanodisk photocatalytic material is prepared according to the following steps:

[0035] Step 1: Add 0.04 mmol of tetrabutyl titanate to 15 mL of oleylamine, stir magnetically, then pass argon into it for 30 min, and gradually heat the solution to 150 °C to fully mix the solution;

[0036] The second step: inject 2 mL of lauryl mercaptan into the above solution, stir magnetically for 30 min at this temperature, then heat to 280 °C, keep the reaction mixture at this temperature for 30 min, and then naturally cool to room temperature;

[0037] The third step: drop the solution obtained in the second step into liquid tert-butane, centrifuge the precipitate, and dry the obtained product in a vacuum oven at 80 °C to obtain titanium disulfide@C nanodiscs;

[0038] Step 4: The pure titanium disulfide@C nanodisks were placed in a hydrogen atmosphere and calcined at 450 °C for 1 h at a heating and cooling rate of 1 °C / min to obtain ox...

Embodiment 3

[0041] An oxygen-deficient titanium disulfide@carbon nanodisk photocatalytic material is prepared according to the following steps:

[0042] Step 1: Add 0.04 mmol of isopropyl titanate to 15 mL of oleylamine, conduct magnetic stirring, then pass nitrogen gas into it for 30 min, and gradually heat the solution to 150 °C to fully mix the solution;

[0043] The second step: inject 2 mL of 1-docosyl mercaptan into the above solution, stir magnetically for 30 min at this temperature, and then heat to 300 °C, the reaction mixture is kept at this temperature for 20 min, and then naturally cooled to room temperature;

[0044] The third step: drop the solution obtained in the second step into liquid tert-butane, centrifuge the precipitate, and dry the obtained product in a vacuum oven at 80 °C to obtain titanium disulfide@C nanodiscs;

[0045] Step 4: The pure titanium disulfide@C nanodisks were placed in a hydrogen atmosphere and calcined at 450 °C for 1 h at a heating and cooling ra...

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Abstract

The invention provides a preparation method of an oxygen-deficient titanium disulfide@carbon nanodisk photocatalytic material. The organic titanium salt is added to oleylamine and stirred, an inert gas is introduced, and the solution is heated to be fully mixed; and mercaptan is injected into the above solution, Stir and heat, keep at this temperature for 20-30 min, and naturally cool to room temperature; drop the obtained solution into liquid alkane, and separate and dry the precipitate to obtain titanium disulfide@C nanodiscs; pure titanium disulfide@C nanodiscs The disks were placed in a hydrogen atmosphere and calcined to obtain oxygen-deficient titanium disulfide@C nanodisks. The invention provides a preparation method of an oxygen-deficient titanium disulfide@carbon nano-disk photocatalytic material. The titanium disulfide@carbon nano-disk photocatalytic material has a larger specific surface area, and the oxygen-deficient defect plays an important role in improving the photocatalytic performance of the material. plays a very important role. It is beneficial to improve the photocatalytic performance of the material. Under UV photocatalytic conditions, the degradation of tetracycline reached 99.8% after 60 min. The preparation process is relatively simple and easy to operate.

Description

technical field [0001] The invention relates to a photocatalytic material and its preparation and application, in particular to a preparation method, product and application of an oxygen-deficient titanium disulfide@carbon nanodisk photocatalytic material. Background technique [0002] With the development of chemical industry, environmental pollution is becoming more and more serious. The discharge of printing and dyeing wastewater is one of the important causes of water pollution. A large number of commercial dyes are discharged every year, and these dyes are chemically stable and cause great harm to the ecological environment. Using the characteristics of semiconductor oxide materials that can be activated under sunlight, it can effectively oxidize and degrade organic compounds into small molecules such as carbon dioxide and water. Compared with traditional purification methods, semiconductor photocatalysis technology has the advantages of mild reaction conditions, no s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/04B01J21/18B01J35/10C02F1/32C02F101/30C02F101/34C02F101/38
CPCB01J27/04B01J21/18B01J35/004B01J35/1004C02F1/32C02F2101/30C02F2101/34C02F2101/38C02F2305/10
Inventor 崔大祥吴晓燕林琳
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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