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Melon rind-based porous carbon material as well as preparation method and application thereof

A technology of porous carbon materials and melon rinds, applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve problems such as difficult to control and complicated carbonization process, achieve simplified carbonization process, wide application range, and reduce environmental pollution Effect

Active Publication Date: 2020-05-05
广东华科新材料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the skin of these melons and fruits is rich in water, sugar, organic acids and polyols, etc., the carbonization process is more complicated and difficult to control.

Method used

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  • Melon rind-based porous carbon material as well as preparation method and application thereof
  • Melon rind-based porous carbon material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of preparation method based on the porous carbon material of watermelon rind, comprises the steps:

[0031] (1) Put 95 parts by weight of fresh watermelon rind, 3 parts by weight of ammonium bicarbonate and 2 parts by weight of urea into a corundum crucible, place the crucible in a vacuum sintering furnace, evacuate the air in the furnace, and slowly input nitrogen to make The air pressure in the furnace is maintained at 1 atmosphere;

[0032] (2) Under a nitrogen atmosphere, raise the temperature in the furnace to 36°C at a heating rate of 1°C / min, keep it for 20 minutes, then continue to raise the temperature in the furnace to 60°C at a heating rate of 0.5°C / min, and keep it for 30 minutes, Finally, continue to raise the temperature in the furnace to 110°C at a heating rate of 2°C / min and keep it warm for 20 minutes;

[0033] (3) Evacuate the gas in the furnace and input nitrogen to keep the air pressure in the furnace at 1 atmosphere;

[0034] (4) Under a ni...

Embodiment 2

[0039] A preparation method of a porous carbon material based on wax gourd rind, comprising the steps of:

[0040] (1) Put 90 parts by weight of fresh wax gourd skin, 5 parts by weight of ammonium bicarbonate and 5 parts by weight of urea into a corundum crucible, place the crucible in a vacuum sintering furnace, evacuate the air in the furnace, and slowly input nitrogen to make The air pressure in the furnace is maintained at 1 atmosphere;

[0041] (2) Under a nitrogen atmosphere, raise the temperature in the furnace to 36°C at a heating rate of 1°C / min, keep it for 20 minutes, then continue to raise the temperature in the furnace to 60°C at a heating rate of 0.5°C / min, and keep it for 30 minutes, Finally, continue to raise the temperature in the furnace to 110°C at a heating rate of 2°C / min and keep it warm for 20 minutes;

[0042] (3) Evacuate the gas in the furnace and input nitrogen to keep the air pressure in the furnace at 1 atmosphere;

[0043](4) Under a nitrogen at...

Embodiment 3

[0048] A preparation method of a porous carbon material based on luffa rind, comprising the steps of:

[0049] (1) Put the fresh loofah rind of 85 parts by weight, the ammonium bicarbonate of 7 parts by weight and the urea of ​​8 parts by weight into the corundum crucible, place the crucible in the vacuum sintering furnace, evacuate the air in the furnace, and slowly input nitrogen to make The air pressure in the furnace is maintained at 1 atmosphere;

[0050] (2) Under a nitrogen atmosphere, raise the temperature in the furnace to 36°C at a heating rate of 1°C / min, keep it for 20 minutes, then continue to raise the temperature in the furnace to 60°C at a heating rate of 0.5°C / min, and keep it for 30 minutes, Finally, continue to raise the temperature in the furnace to 110°C at a heating rate of 2°C / min and keep it warm for 20 minutes;

[0051] (3) Evacuate the gas in the furnace and input nitrogen to keep the air pressure in the furnace at 1 atmosphere;

[0052] (4) Under a...

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Abstract

The invention discloses a preparation method of a porous carbon material based on melon rind. Specifically, the porous carbon material is prepared by using melon rind as a raw material through step-by-step carbonization under the auxiliary actions of ammonium bicarbonate and urea. According to the invention, the carbonization process of melon rind is simplified, high-value recycling of melon rindwaste is achieved, environmental pollution is reduced while waste is turned into wealth, and the obtained porous carbon material has the biomass multi-channel characteristic, is loose and porous in surface, high in specific surface area and high in chemical activity and can be applied to the fields of lithium ion batteries, supercapacitors, cosmetics and catalytic high-chemical-activity carriers.

Description

technical field [0001] The invention relates to the technical field of carbon materials, in particular to a melon rind-based porous carbon material and its preparation method and application. Background technique [0002] Melon rind and shell waste is mainly composed of various types of waste food such as melon rind and shell. If it is directly discarded or disposed of as general urban waste, it will not only pollute the environment and increase the amount of urban waste to be processed, but also cause waste of these waste foods. At present, some people use these garbage directly as feed, but it is easy to spoil during storage and transportation. Harmful microorganisms such as germs and viruses contained in it will also infect the raised livestock, and then cause harm to people. [0003] Melon rind and shell are rich in biomass carbon, especially watermelon, wax gourd, loofah and other seasonally concentrated melons and fruits. The rinds of these melons and fruits have the c...

Claims

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Application Information

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IPC IPC(8): C01B32/342C01B32/324
CPCC01B32/342C01B32/324
Inventor 尹荔松甘颖俊王向科钟兆祥吴盈华
Owner 广东华科新材料研究院有限公司
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