Preparation method of phosphorus-doped cadmium sulfide supported nickel carbide quantum-dot nanorod photocatalyst

A photocatalyst and nanorod technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of poor stability and visible light catalytic activity, affecting the application of photocatalysts, etc., to achieve strong visible light Responsiveness, good development potential, excellent stability effects

Active Publication Date: 2019-05-10
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In recent years, semiconductor photocatalysis technology is considered to be one of the ideal ways to use solar energy to realize energy conversion and environmental governance. However, the stability and visible light catalytic activity of existing photocatalysts are poor, which seriously affects the application of photocatalysts.

Method used

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  • Preparation method of phosphorus-doped cadmium sulfide supported nickel carbide quantum-dot nanorod photocatalyst
  • Preparation method of phosphorus-doped cadmium sulfide supported nickel carbide quantum-dot nanorod photocatalyst
  • Preparation method of phosphorus-doped cadmium sulfide supported nickel carbide quantum-dot nanorod photocatalyst

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preparation example Construction

[0028] The preparation process of CdS nanorods is as follows:

[0029] Add 3.0-5.0g of trioctylphosphine oxide, 0.60-1.0g of n-octadecyl phosphate and 0.10-0.5g of cadmium oxide into the three-necked flask, heat it to 300-350°C under vacuum, and keep it for 1 hour , to dissolve CdO, then inject 3.3g of monomeric tri-n-octylphosphine (TOP) and 0.1g of sulfur powder, react under a nitrogen atmosphere, then cool to 70°C, and finally add 3-6mL of toluene to initially remove the surface Active agent, and finally ultrasonically washed with a mixture of toluene and acetone to remove the surfactant, and then dried in an oven at 60°C for 5 hours to obtain CdS nanorods, wherein the volume ratio of toluene to acetone is 1:1, and the molar ratio of CdO to sulfur powder The ratio is 1 to 3-10.

[0030] The preparation method of phosphorus-doped cadmium sulfide loaded nickel carbide quantum dot nanorod photocatalyst of the present invention comprises the following steps:

[0031] 1) Take ...

Embodiment 1

[0036] The preparation method of phosphorus-doped cadmium sulfide loaded nickel carbide quantum dot nanorod photocatalyst of the present invention comprises the following steps:

[0037] 1) Take CdS nanorods and NaH 2 PO 2 , and then CdS nanorods and NaH 2 PO 2 mixed and then in N 2 Heating to 500°C in the atmosphere for 10 hours to obtain phosphorus-doped CdS nanorods;

[0038] 2) Dissolve phosphorus-doped CdS nanorods in N,N-dimethylformamide, and then add Ni(NO 3 ) 2 ·6H 2 O and 2-methylimidazole, and then stirred at room temperature for 4h to obtain the precursor material;

[0039] 3) Place the precursor material obtained in step 2) in a polytetrafluoroethylene-lined stainless steel autoclave, heat it to 160°C, and keep it for 24 hours, then cool it to room temperature, and then wash it with deionized water and ethanol , to obtain a black-green product, and place the black-green product in an oven at 60° C. to dry for 12 hours to obtain a phosphorus-doped cadmium s...

Embodiment 2

[0042] The preparation method of phosphorus-doped cadmium sulfide loaded nickel carbide quantum dot nanorod photocatalyst of the present invention comprises the following steps:

[0043] 1) Take CdS nanorods and NaH 2 PO 2 , and then CdS nanorods and NaH 2 PO 2 mixed and then in N 2 Heating to 500°C in the atmosphere for 10 hours to obtain phosphorus-doped CdS nanorods;

[0044] 2) Dissolve phosphorus-doped CdS nanorods in N,N-dimethylformamide, and then add Ni(NO 3 ) 2 ·6H 2 O and 2-methylimidazole, and then stirred at room temperature for 4h to obtain the precursor material;

[0045] 3) Place the precursor material obtained in step 2) in a polytetrafluoroethylene-lined stainless steel autoclave, heat it to 160°C, and keep it for 24 hours, then cool it to room temperature, and then wash it with deionized water and ethanol , to obtain a black-green product, and place the black-green product in an oven at 60° C. to dry for 12 hours to obtain a phosphorus-doped cadmium s...

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Abstract

The invention discloses a preparation method of a phosphorus-doped cadmium sulfide supported nickel carbide quantum-dot nanorod photocatalyst. The preparation method includes the steps of 1) mixing CdS nanorods and NaH2PO2, heating the mixture in N2 atmosphere to obtain phosphorus-doped CdS nanorods; 2) dissolving the phosphorus-doped CdS nanorods in N,N-dimethylformamide, adding Ni(NO3)2 6H2O and2-methylimidazole, and stirring at room temperature to obtain a precursor material; 3) heating the precursor material of the step 2), holding the temperature, cooling to room temperature, washing with deionized water and ethanol to obtain a black-green product, and drying the black-green product to obtain the phosphorus-doped cadmium sulfide supported nickel carbide quantum-dot nanorod photocatalyst. The photocatalyst prepared via the preparation method has good stability and high visible light catalytic activity, and the preparation method is simple.

Description

technical field [0001] The invention relates to a method for preparing a photocatalyst, in particular to a method for preparing a phosphorus-doped cadmium sulfide-loaded nickel carbide quantum dot nanorod photocatalyst. Background technique [0002] The limited reserves of fossil fuels, and with their massive consumption, make human beings face a severe energy crisis, and at the same time face a severe challenge: how to seek renewable and clean energy to ensure a safe and stable supply of global energy. As a clean and abundant energy source, solar energy has great application potential. Therefore, how to realize efficient utilization of solar energy has attracted much attention. [0003] In recent years, semiconductor photocatalysis technology is considered to be one of the ideal ways to use solar energy to realize energy conversion and environmental governance. However, the stability and visible light catalytic activity of existing photocatalysts are poor, which seriously ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/185B01J35/02
Inventor 杨贵东李贺陈子浩
Owner XI AN JIAOTONG UNIV
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