Preparation method of carbon nitride with two-dimensional thin-layer structure

A carbon nitride and thin-layer technology, applied in the field of material chemistry, can solve the problems of high peeling yield, pollution in the peeling process, and short time consumption, and achieve the effect of significant advantages, low cost, and short time consumption

Pending Publication Date: 2020-04-10
PINGDINGSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem solved by the present invention is to provide a method for preparing a two-dimensional thin-la...

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  • Preparation method of carbon nitride with two-dimensional thin-layer structure
  • Preparation method of carbon nitride with two-dimensional thin-layer structure

Examples

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Embodiment 1

[0025] A method for preparing carbon nitride with a two-dimensional thin layer structure, comprising the following steps:

[0026] Step 1: Take 1 g of melamine and dissolve melamine and glycerol phosphatidylcholine in 60 ml of deionized water according to the molar ratio of melamine and glycerol phosphatidylcholine of 1:1.38, and keep stirring for 15 minutes until it is completely dissolved to obtain a mixture solution, and then The mixture solution was placed in a polytetrafluoroethylene-lined hydrothermal kettle for hydrothermal reaction at 180°C for 10 hours, then centrifuged and washed with deionized water for 3 times, and then dried at 60°C for 12 hours to obtain a solid;

[0027] Step 2: Add 0.02g of KOH to the solid to obtain a solid mixture; then take carbon fiber according to the mass ratio of solid to carbon fiber 0.01:1 and mechanically mix it with the solid mixture as raw material, place it in a 500mL corundum crucible and cover it , and then put the crucible into ...

Embodiment 2

[0030] A method for preparing carbon nitride with a two-dimensional thin layer structure, comprising the following steps:

[0031] Step 1: Take 1 g of melamine and dissolve melamine and glycerol phosphatidylcholine in 80 ml of deionized water according to the molar ratio of melamine and glycerol phosphatidylcholine of 1:1.58, and keep stirring for 30 minutes until it is completely dissolved to obtain a mixture solution, and then The mixture solution was placed in a polytetrafluoroethylene-lined hydrothermal kettle for hydrothermal reaction at 200°C for 15 hours, then centrifuged and washed with deionized water for 4 times, and then dried at 70°C for 11 hours to obtain a solid;

[0032] Step 2: Add 0.05g of KOH to the solid to obtain a solid mixture; then take carbon fiber according to the mass ratio of solid to carbon fiber 0.018:1 and mechanically mix it with the solid mixture as a raw material, then place it in a 500mL corundum crucible and cover it , and then put the crucib...

Embodiment 3

[0037] A method for preparing carbon nitride with a two-dimensional thin layer structure, comprising the following steps:

[0038] Step 1: Take 1 g of melamine and dissolve melamine and glycerol phosphatidylcholine in 120 ml of deionized water according to the molar ratio of melamine and glycerol phosphatidylcholine of 1:2.56, and keep stirring for 60 minutes until it is completely dissolved to obtain a mixture solution, and then The mixture solution was placed in a polytetrafluoroethylene-lined hydrothermal kettle for hydrothermal reaction at 240°C for 24 hours, then centrifuged and washed with deionized water for 5 times, and then dried at 100°C for 10 hours to obtain a solid;

[0039] Step 2: Add 0.1g of KOH to the solid to obtain a solid mixture; then take carbon fiber according to the mass ratio of solid to carbon fiber 0.025:1 and mechanically mix it with the solid mixture as raw material, then place it in a 500mL corundum crucible and cover it , and then put the crucibl...

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Abstract

The invention discloses a preparation method of carbon nitride with a two-dimensional thin-layer structure. The preparation method comprises the following steps: dissolving melamine and glycerophosphatidylcholine in deionized water and carrying out hydrothermal reaction in a hydrothermal kettle to obtain a mixture solution; centrifuging, washing and drying the mixture solution to obtain a solid; adding KOH into the solid to obtain a solid mixture; taking carbon fibers according to the mass ratio (0.01-0.1): 1 of the carbon fibers to the solid matter, mixing the carbon fibers with the solid mixture to be put into a crucible, putting the crucible into the resonant cavity of a microwave oven for vacuum heating and cooling to room temperature to obtain a heating product; and washing and dryingthe heated product to obtain the carbon nitride with the two-dimensional thin-layer structure. The stripping yield is high, the consumed time is short and the pollution problem in the stripping process can be solved.

Description

technical field [0001] The invention belongs to the technical field of material chemistry and relates to a preparation method of carbon nitride with a two-dimensional thin layer structure. Background technique [0002] With the aggravation of environmental pollution and the excessive use of highly polluting energy such as fossil energy, the development of an environmentally friendly clean energy has become the focus of attention. Graphite carbon nitride (g-C 3 N 4 ) has been actively and extensively studied in the field of photocatalytic water splitting due to the advantages of wide source of precursors, simple preparation method, non-toxicity, high photochemical stability, and suitable energy band structure, which can realize photocatalytic hydrogen production. However, the carbon nitride synthesized by ordinary calcination method is usually in the bulk phase and in block shape. Due to the weak van der Waals force in the layer and between layers, the block carbon nitride ...

Claims

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Application Information

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IPC IPC(8): C01B21/082B01J27/24B01J37/10B01J35/10
CPCB01J27/24B01J35/004B01J35/1004B01J37/10C01B21/0605C01P2002/72C01P2004/03C01P2004/20
Inventor 杨柳青商叶马威曹可生王俊青李松田李青彬韩永军
Owner PINGDINGSHAN UNIVERSITY
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