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A kind of preparation method and application of biomass carbon-based fe single atom-n doped porous carbon material

A technology of porous carbon materials and nitrogen-doped porous carbon, which is applied in the direction of carbon preparation/purification, botany equipment and methods, applications, etc., can solve the problems of polluted environment, poor degradation effect, high preparation cost, etc., and achieve simple preparation method , cost reduction, and the effect of improving the light and heat absorption rate

Active Publication Date: 2022-03-29
NORTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of high preparation cost of existing plastic agricultural film, poor degradation effect and environmental pollution when discarded, and provide a method for preparing a biomass carbon-based Fe single atom-N doped porous carbon material and its application

Method used

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  • A kind of preparation method and application of biomass carbon-based fe single atom-n doped porous carbon material
  • A kind of preparation method and application of biomass carbon-based fe single atom-n doped porous carbon material
  • A kind of preparation method and application of biomass carbon-based fe single atom-n doped porous carbon material

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specific Embodiment approach 1

[0027] Embodiment 1: This embodiment is a method for preparing a biomass carbon-based Fe single atom-N doped porous carbon material, which is completed according to the following steps:

[0028] 1. Preparation of walnut shell-based nitrogen-doped porous carbon materials:

[0029] ①. Mix walnut shell charcoal powder, urea, o-phenylenediamine and potassium hydroxide, and then ball mill to obtain mixture I;

[0030] ② Put the mixture Ⅰ into the alumina porcelain boat, then put the alumina porcelain boat into the tube furnace, pass inert gas into the tube furnace at room temperature, and then inert gas atmosphere at 3°C / min~ Raise the temperature to 250℃~350℃ at a heating rate of 5℃ / min, keep it for 1h~2h, then raise the temperature to 750℃~800℃ at a heating rate of 3℃ / min~5℃ / min, keep it for 1.5h~2.5h, and finally Cool to room temperature to obtain reaction product I;

[0031] ③, first use hydrochloric acid to wash the reaction product I, then use distilled water to wash the re...

specific Embodiment approach 2

[0045] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the walnut shell charcoal powder described in step one 1. is to be finished according to the following steps:

[0046] (1) Wash the walnut shells with distilled water until the distilled water is free of turbidity, then dry them at 60°C to 70°C to constant weight, crush them with a grinder, and sieve them with a 200-mesh stainless steel screen to obtain a particle size of less than 200 mesh walnut shell powder;

[0047] (2), firstly put the walnut shell powder into the reaction kettle, then add deionized water, hydrogen peroxide solution and acetic acid, then conduct a hydrothermal reaction at a temperature of 80°C to 200°C for 2h to 24h, cool to room temperature, and obtain the reaction Product: Suction filtration is carried out using a vacuum filtration device, and the obtained solid matter is dried at a constant temperature at 50°C to 70°C for 10h to 12h to obtain walnut s...

specific Embodiment approach 3

[0052] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the ball milling speed described in step one ① is 500r / min~1000r / min, and the ball milling time is 0.5h~1.5h; step one The mass ratio of walnut shell charcoal powder, urea, o-phenylenediamine and potassium hydroxide described in ① is 1:1.5:0.5:2. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

A preparation method and application of a biomass carbon-based Fe single atom-N doped porous carbon material, relating to a preparation method and application of a porous carbon material. The purpose of the invention is to solve the problems of high preparation cost, poor degradation effect and environmental pollution of the existing plastic agricultural film when discarded. Methods: 1. Preparation of walnut shell-based nitrogen-doped porous carbon materials; 2. Preparation of Fe-N-doped porous carbon materials; 3. Preparation of biomass single-atom catalysts. Biomass carbon-based Fe single-atom-N-doped porous carbon material was used as a photocatalyst for the preparation of photodegradable mulch. The biomass carbon-based Fe single-atom-N-doped porous carbon material prepared by the present invention has a simple preparation method, no pollution to the environment, adjustable degradation of plastic film, and simultaneously has the advantages of reduced cost and high catalytic efficiency. The invention can obtain a biomass carbon-based Fe single atom-N doped porous carbon material.

Description

technical field [0001] The invention relates to a preparation method and application of a porous carbon material. Background technique [0002] As we all know, plastic as a material has penetrated into all sectors of the national economy and all areas of people's lives. With the large-scale promotion and application of plastic agricultural film, a "white revolution" in agriculture has been set off. The development of degradable plastics is the mainstream to solve the problem of plastic waste treatment, and it is also an important way to deal with the pollution of disposable products that are difficult to recycle. It has become a popular research in the field of plastic applications and has achieved rapid development. Degradable plastic photodegradable mulch film has attracted people's attention because it uses sunlight to degrade and does not require additional energy. Degradation is to make full use of the most abundant resource in nature - sunlight to achieve the purpose ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/05B01J27/24A01G13/02
CPCC01B32/05B01J27/24A01G13/0275B01J35/39
Inventor 马生华王一屈云腾赵航冷坤岳白晋波
Owner NORTHWEST UNIV
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