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Preparation and application of boat-fruited sterculia seed residue based sulfur-doped porous carbon

A sulfur-doped, porous carbon technology, applied in the preparation/purification of carbon, nanotechnology for materials and surface science, carbon compounds, etc., can solve problems such as strong corrosion performance, complex operation of template method, and difficult control. Achieve the effect of adjustable sulfur content, controllable pore size distribution and easy access

Active Publication Date: 2019-05-03
HENAN INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the template method has limited its large-scale application due to its disadvantages such as complicated operation, strong corrosion performance, and difficult control.

Method used

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  • Preparation and application of boat-fruited sterculia seed residue based sulfur-doped porous carbon
  • Preparation and application of boat-fruited sterculia seed residue based sulfur-doped porous carbon
  • Preparation and application of boat-fruited sterculia seed residue based sulfur-doped porous carbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation of sulfur-doped porous carbon based on fat sea slag, the steps are as follows:

[0028] (1) Peel and remove the seeds from the Panda Sea after making tea, put it into a freeze dryer for freeze-drying, the temperature of freeze-drying is -60°C, the vacuum degree is less than 20pa, and the time is 21h, and then it is crushed with an FZ102 plant grinder , the rotating speed is 1400r / min, through a 100-mesh sieve, to obtain fat sea slag powder;

[0029] (2) Put the fat sea slag powder and cysteine ​​with a mass ratio of 20:2 into a nickel crucible, add an equal volume of alcohol and water, mix well and let it stand for 24 hours, and then put it in a vacuum drying oven at 105°C Internal drying for 11 hours, and then the dried product was subjected to high-temperature carbonization in an argon atmosphere with a mass fraction of 99.99%, the gas flow rate was 150 sccm; the high-temperature carbonization temperature was 800°C, the heating rate was 6°C / min, and the ...

Embodiment 2

[0035] A preparation of sulfur-doped porous carbon based on fat sea slag, the steps are as follows:

[0036] (1) Take the fat sea after making tea, peel and remove the seeds, put it into a freeze dryer for freeze drying, the freeze drying temperature is -70°C, the vacuum degree is less than 20pa, and the time is 20h, and then crush it with an FZ102 plant grinder , the rotating speed is 1400r / min, through a 100-mesh sieve, to obtain fat sea slag powder;

[0037] (2) Put fat sea slag powder and sulfur with a mass ratio of 20:1 into a nickel crucible, add an equal volume of alcohol and water, mix well and let it stand for 24 hours, then put it in a vacuum oven at 100°C for drying 10h, and then the dried product was subjected to high-temperature carbonization in a nitrogen atmosphere with a mass fraction of 99.99%, the gas flow rate was 100sccm; the high-temperature carbonization temperature was 700°C, the heating rate was 3°C / min, and the treatment time was 1h, and the carbonized...

Embodiment 3

[0040] A preparation of sulfur-doped porous carbon based on fat sea slag, the steps are as follows:

[0041] (1) Take the fat sea after making tea, peel and remove the seeds, put it into a freeze dryer for freeze drying, the freeze drying temperature is -50°C, the vacuum degree is less than 20pa, and the time is 24h, and then crush it with an FZ102 plant grinder , the rotating speed is 1400r / min, through a 100-mesh sieve, to obtain fat sea slag powder;

[0042] (2) Put the fat sea slag powder and cystine with a mass ratio of 20:3 into a nickel crucible, add an equal volume of alcohol and water, mix well and let it stand for 24 hours, then put it in a vacuum drying oven at 110°C After drying for 12 hours, the dried product was subjected to high-temperature carbonization in a helium atmosphere with a mass fraction of 99.99%, the gas flow rate was 300 sccm; the high-temperature carbonization temperature was 900°C, the heating rate was 7°C / min, and the treatment time was 4h. The ...

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Abstract

The invention provides preparation and application of boat-fruited sterculia seed residue based sulfur-doped porous carbon. The preparation comprises the following steps: subjecting tea-made boat-fruited sterculia seed residues, which serve as a raw material, and a sulfur dopant to high-temperature carbonization in an inert atmosphere so as to obtain sulfur-doped carbon, and then, carrying out physical activating treatment, thereby obtaining the sulfur-doped porous carbon. According to the preparation and the application, the sulfur-doped porous carbon is prepared by adopting a high-temperature carbonization and physical activation combined method, the method is simple in operation, the process is easy to control, washing is not required after activation, the production cost is reduced, the carbon yield is relatively high, and the method is environmentally friendly; and the prepared sulfur-doped porous carbon is of a nanosheet structure, is controllable in specific surface area and pore size distribution, high in electric conductivity and adjustable in sulfur content and is particularly suitable for being applied to the fields of heavy-metal wastewater treatment, printing and dyeing wastewater adsorption, lithium-sulfur batteries, lithium-ion batteries, sodium-ion batteries, supercapacitors, catalyst loading and the like.

Description

technical field [0001] The invention relates to the field of biomass carbon preparation, in particular to the preparation and application of sulfur-doped porous carbon based on fat sea slag. Background technique [0002] Since the first and second industrial revolutions, with the mining and utilization of non-renewable resources such as coal, oil, and natural gas on the earth, problems such as environmental pollution and energy depletion have also continued to arise. In order to fundamentally solve these problems, researchers from all over the world are committed to research and development of new clean resources to replace the use of coal, oil, and natural gas, such as: wind energy, geothermal energy, solar energy, tidal energy, and biomass energy. Biomass refers to the organic matter formed by photosynthesis of green plants, including plants, animals and microorganisms other than fossil fuels and their excretion and metabolites. It has biological characteristics such as re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/05C01B32/324C01B32/336B82Y30/00B82Y40/00B01J20/20B01J20/30C02F1/28C02F101/20
Inventor 任建刚陈锋宋志敏李冰马路路陶克勤周朝阳
Owner HENAN INST OF ENG
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