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Preparation method of composite photocatalyst with high oxidation activity carbon dots and nickel sulfide

A technology of activated carbon and nickel sulfide, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve problems such as low utilization rate of visible light, low loading activity, and weak photooxidative ability

Inactive Publication Date: 2018-06-26
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the photocatalysts based on titanium dioxide on the market still have problems such as low utilization rate of visible light, low photooxidative ability, slow total photochemical reaction rate, and low loading activity. Therefore, it is urgent to develop high-efficiency, recyclable and reusable catalyst of light

Method used

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  • Preparation method of composite photocatalyst with high oxidation activity carbon dots and nickel sulfide
  • Preparation method of composite photocatalyst with high oxidation activity carbon dots and nickel sulfide
  • Preparation method of composite photocatalyst with high oxidation activity carbon dots and nickel sulfide

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preparation example Construction

[0017] The preparation method of composite photocatalyst with high oxidation activity carbon point and nickel sulfide adopts the following steps:

[0018] (1) Dissolve p-phenylenediamine in ethanol, the weight ratio of p-phenylenediamine to ethanol is 1:80, then put the mixed solution of p-phenylenediamine and ethanol into the lining of polytetrafluoroethylene hydrothermal reaction kettle middle; then put the polytetrafluoroethylene hydrothermal reaction kettle lining into the steel tank and seal it, put it into the blast drying oven and heat it to 160-180°C, keep it warm for 8-12 hours, and then cool it in the air to obtain carbon dot suspension;

[0019] (2) Get a nickel foam disc with a diameter of 30mm, a thickness of 2-3mm, an aperture of 0.01-2mm, and a through-hole ratio≥98%, and ultrasonically clean the nickel foam disc with acetone and 3mol / L hydrochloric acid solution for 10- 15 minutes, and then rinse with ethanol 3-5 times;

[0020] (3) nickel foam disc is put in...

Embodiment 1

[0023] In this embodiment, the preparation method of the composite photocatalyst with high oxidation activity carbon point and nickel sulfide adopts the following steps:

[0024] (1) 1g p-phenylenediamine is dissolved in 80g ethanol, then the mixed solution of p-phenylenediamine and ethanol is put into the lining of polytetrafluoroethylene hydrothermal reaction kettle; then polytetrafluoroethylene hydrothermal reaction Put the inner lining of the kettle into a steel tank and seal it, put it into a blast drying oven and heat it to 160°C, keep it warm for 8 hours, and then cool it in the air to obtain a carbon dot suspension;

[0025] (2) Get the foamed nickel disc with a diameter of 30mm, a thickness of 2mm, an aperture of 0.01mm, and a through-porosity of 99%, and ultrasonically clean the foamed nickel disc with acetone and 3mol / L hydrochloric acid solution for 10 minutes, and then Rinse 3 times with ethanol;

[0026] (3) Put the nickel foam disc into a beaker with the same i...

Embodiment 2

[0036] In this embodiment, the preparation method of the composite photocatalyst with high oxidation activity carbon point and nickel sulfide adopts the following steps:

[0037] (1) 2g p-phenylenediamine is dissolved in 160g ethanol, then the mixed solution of p-phenylenediamine and ethanol is put into the lining of polytetrafluoroethylene hydrothermal reaction kettle; then polytetrafluoroethylene hydrothermal reaction Put the inner lining of the kettle into a steel tank and seal it, put it into a blast drying oven and heat it to 180°C, keep it warm for 12 hours, and then cool it in the air to obtain a carbon dot suspension;

[0038] (2) Get a nickel foam disc with a diameter of 30mm, a thickness of 3mm, an aperture of 2mm, and a through-porosity of 98%, and ultrasonically clean the foam nickel disc with acetone and 3mol / L hydrochloric acid solution for 15 minutes, and then use ethanol Rinse 5 times;

[0039] (3) Put the foamed nickel disc into a beaker with the same inner d...

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Abstract

The invention discloses a preparation method of a carbon dot and nickel sulfide compound photocatalyst with high oxidative activity. The preparation method can prepare the carbon dot and nickel sulfide compound photocatalyst in the following four steps: preparing carbon dot suspension; carrying out ultrasonic cleaning on a foam nickel wafer; carrying out ultrasonication on the foam nickel wafer in the carbon dot suspension and drying; sealing a hydrothermal reaction still steel can, keeping warm and cooling. The carbon dot and nickel sulfide compound photocatalyst prepared with the preparation method of the carbon dot and nickel sulfide compound photocatalyst increases a surface in contact with reactant and is favorable for recovery and reuse. Meanwhile, the carbon dot and nickel sulfide compound photocatalyst has a high ultraviolet-visible light adsorption capability, and shows high photooxidation activity.

Description

technical field [0001] The invention belongs to the field of functional material science, and specifically relates to a preparation method of a composite photocatalyst with high oxidation activity carbon points and nickel sulfide. Background technique [0002] Photocatalysis is a process in which a photocatalyst converts light energy into chemical energy under the irradiation of light to promote the synthesis of compounds or degrade compounds. With the continuous development of the global industrialization process, the problem of environmental pollution is becoming more and more serious, and environmental protection and sustainable development have become the primary issues that people must consider. Therefore, converting solar energy into chemical energy with the help of photocatalysts to deal with environmental pollution has become an important technical means to save energy and protect the ecological environment. However, the photocatalysts based on titanium dioxide on t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/043
CPCB01J27/043B01J35/004
Inventor 胡胜亮韩雪军王延冰常青薛超瑞董英鸽杨金龙
Owner ZHONGBEI UNIV
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