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Metal Fe-modified black phosphorene and its preparation method and application

A technology of black phosphorene and metal, which is applied in the field of metal Fe-modified black phosphorene and its preparation, can solve the problems that limit the application of black phosphorene, and achieve the effects of increased efficiency, miniaturized volume, and reduced sintering

Active Publication Date: 2021-06-11
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large number of studies have shown that black phosphorene has a strong adsorption capacity for N-containing gas molecules such as NO 2 , NO, NH 3 etc., which also limits the application of black phosphorene in other gas adsorption

Method used

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  • Metal Fe-modified black phosphorene and its preparation method and application
  • Metal Fe-modified black phosphorene and its preparation method and application
  • Metal Fe-modified black phosphorene and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The preparation method of metal Fe modified black phosphorene catalyst is as follows:

[0040] A) take by weighing red phosphorus, purify in deionized water for 15 minutes, after taking out, in vacuum (vacuum degree is 10 -2 -10 -3 Pa) drying in oven for 20 minutes, put into desiccator after processing for ready use;

[0041] B) Put the above dry red phosphorus into a tube furnace, put a silicon substrate in the tube furnace, evacuate the tube furnace and raise the temperature to 630°C, keep it for 30 minutes, then close the tube furnace and put it at room temperature Cool down to obtain a Si substrate covered with a red phosphorus film;

[0042] C) Transfer the obtained Si substrate coated with red phosphorus film to a conical-bottom glass centrifuge tube containing Sn / SnI (red phosphorus film: Sn:SnI=1:4:2), and then put the centrifuge tube into the pressure In the container reactor, and fill the reactor with argon to reach 26atm, fix the reactor in a tube furnace ...

Embodiment 2

[0056] A preparation method for metal Fe modified black phosphorene catalyst, comprising the following steps:

[0057] A) take by weighing red phosphorus, purify in deionized water for 17 minutes, after taking out, in vacuum (vacuum degree is 10 -2 -10 -3 Pa) drying in oven for 23 minutes, put into desiccator after processing for ready use;

[0058] B) Put the above-mentioned dry red phosphorus into a tube furnace, and put a silicon substrate in the tube furnace, pump the tube furnace to vacuum and heat up to 600°C, keep it for 35 minutes, then close the tube furnace and put it at room temperature Cool down to obtain a Si substrate covered with a red phosphorus film;

[0059] C) Transfer the obtained Si substrate coated with red phosphorus film to a conical-bottom glass centrifuge tube containing Sn / SnI (red phosphorus film: Sn:SnI=1:4:2), and then put the centrifuge tube into the pressure In the container reactor, and fill the reactor with argon to reach 26.5atm, fix the r...

Embodiment 3

[0063] A preparation method for metal Fe modified black phosphorene catalyst, comprising the following steps:

[0064] A) take by weighing red phosphorus, purify in deionized water for 19 minutes, after taking out, in vacuum (vacuum degree is 10 -2 -10 -3 Pa) drying in oven for 27 minutes, put into desiccator after processing for ready use;

[0065] B) Put the above-mentioned dry red phosphorus into a tube furnace, and put a silicon substrate in the tube furnace, pump the tube furnace to vacuum and heat up to 650°C, keep it for 32 minutes, then close the tube furnace and put it at room temperature Cool down to obtain a Si substrate covered with a red phosphorus film;

[0066] C) Transfer the obtained Si substrate coated with red phosphorus film to a conical-bottom glass centrifuge tube containing Sn / SnI (red phosphorus film: Sn:SnI=1:4:2), and then put the centrifuge tube into the pressure In the container reactor, and fill the reactor with argon to reach 27.8atm, fix the r...

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Abstract

The invention discloses a metal Fe-modified black phosphorene. The metal Fe-modified black phosphorene is a two-dimensional layered structure material prepared from red phosphorus, and the number of layers is 10-25 layers; wherein, The loading density of the metal Fe is 7.9%-10%. The invention also discloses a preparation method of the above-mentioned metal Fe-modified black phosphorene, and its application as a catalyst in the catalytic dissociation of dichloromethane. While reducing the sintering phenomenon of the catalyst, the high surface volume ratio of the two-dimensional material improves the catalytic efficiency, and the high temperature resistance of the black phosphorus makes the catalytic process more reliable, and the cost is greatly reduced compared with the use of noble metals as catalysts.

Description

technical field [0001] The invention belongs to waste gas treatment technology, and in particular relates to a metal Fe-modified black phosphorene, a preparation method and application thereof. Background technique [0002] With the development of society, a large number of VOCs are discharged into the environment in the process of production and life, and their types and quantities are increasingly expanding and complex. Dichloromethane is one of them. It is widely used in the manufacture of safety film and polycarbonate, and the rest are used as paint solvents, metal degreasing agents, gas mist propellants, polyurethane foaming agents, mold release agents, and paint removers. Every year, the world emits 1.2 million tons of methylene chloride gas into the atmosphere. Generate more and more complex harmful substances in the atmosphere and cause serious harm to the ozone layer and human health. Therefore, the effective and reasonable purification and disposal of organic was...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/185B01J20/20B01J20/02
CPCB01J20/02B01J20/20B01J27/1853
Inventor 雷双瑛孙小龙陈洁
Owner SOUTHEAST UNIV
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