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Preparation method of enteromorpha carbon nano material

A technology of carbon nanomaterials and Enteromorpha, which is applied in the field of preparation of Enteromorpha carbon nanomaterials, can solve the problems of high requirements for reaction equipment, high raw material prices, and high production costs, and achieve low raw material costs, simple preparation processes, and environmental protection Effect

Inactive Publication Date: 2017-03-08
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The synthesis method of carbon nanomaterials in the prior art has disadvantages such as insufficient environmental protection, high synthesis temperature, high requirements for reaction equipment, high production cost, and high raw material price.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of Enteromorpha carbon nanomaterials, specifically comprising the following steps:

[0025] (1) Picking and removing impurities after the Enteromorpha is collected, washing, freeze-drying, crushing and sieving to obtain 100 mesh Enteromorpha powder;

[0026] (2) The Enteromorpha powder was calcined in a nitrogen atmosphere at 200°C until black, and the calcining time was 60 minutes to obtain a pre-carbonized product;

[0027] (3) Add potassium permanganate to the pre-carbonized product according to a weight ratio of 1:1, and stir for 4 hours at a temperature of 50° C. and a stirring speed of 50 r / min to obtain a precursor; Dry at 50°C for 6h to obtain an intermediate product;

[0028] (4) heat-treating the intermediate product to obtain product I, the conditions of the heat treatment are heating up to 600°C at a heating rate of 10°C / min, and then heating for 0.5h at an inert gas flow rate of 30mL / min;

[0029] (5) Treat the product I with 10-30% h...

Embodiment 2

[0031] Different from Example 1, a preparation method of Enteromorpha carbon nanomaterials specifically comprises the following steps:

[0032] (1) picking and removing impurities after the Enteromorpha is collected, washing, freeze-drying, crushing and sieving to obtain 50 mesh Enteromorpha powder;

[0033] (2) The Enteromorpha powder was calcined in an argon atmosphere at 800°C until black, and the calcining time was 60 minutes to obtain a pre-carbonized product;

[0034] (3) Add phosphorus pentoxide to the pre-carbonized product according to a weight ratio of 1:5, and stir for 10 h at a temperature of 50° C. and a stirring speed of 300 r / min to obtain a precursor; Dry at 100°C for 12 hours to obtain an intermediate product;

[0035] (4) heat-treating the intermediate product to obtain product I, the conditions of the heat treatment are to heat up to 1400°C at a heating rate of 20°C / min, and then heat for 6h at an inert gas flow rate of 200mL / min;

[0036] (5) The product ...

Embodiment 3

[0038] Different from Examples 1 and 2, a preparation method of Enteromorpha carbon nanomaterials specifically comprises the following steps:

[0039] (1) Picking and removing impurities after collecting Enteromorpha, washing, freeze-drying, crushing and sieving to obtain 70 mesh Enteromorpha powder;

[0040] (2) The enteromorpha powder was calcined to black in an argon atmosphere at 650° C. for 30 minutes to obtain a pre-carbonized product;

[0041] (3) Add phosphorus pentoxide to the pre-carbonized product according to a weight ratio of 1:3, and stir for 8 hours at a temperature of 30° C. and a stirring speed of 250 r / min to obtain a precursor; Dry at 85°C for 10 hours to obtain an intermediate product;

[0042] (4) heat-treating the intermediate product to obtain product I, the conditions of the heat treatment are heating up to 1000°C at a heating rate of 15°C / min, and then heating for 3h at an inert gas flow rate of 100mL / min;

[0043] (5) The product I was treated by ac...

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Abstract

The invention discloses a preparation method of an enteromorpha carbon nano material. The method comprises the following specific steps: (1) picking enteromorpha, removing impurities, and performing washing, freeze-drying and sieving to obtain enteromorpha powder of 50 to 100 meshes; (2) treating the enteromorpha powder in an inert gas atmosphere to prepare a pre-carbonized product; (3) adding an active agent into the pre-carbonized product to obtain a precursor, and drying the precursor at 50 DEG C to 100 DEG C for 6 to12 hours to obtain an intermediate product; (4) performing thermal treatment on the intermediate product to obtain a product I; and (5) treating the product I by adopting an acid leaching method to obtain the enteromorpha carbon nano material. According to the preparation method of the enteromorpha carbon nano material, the carbon nano material is prepared from the enteromorpha; a novel preparation method of a biomass carbon material is provided; raw material resource is rich; the preparation process is simple; no pollution is caused; and quantifiable production can be realized.

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to a preparation method of enteromorpha carbon nanomaterials. Background technique [0002] Enteromorpha is a Ulvaceae plant of the Chlorophyta Ulva, which grows in the intertidal zone and is rich in wild algae resources in my country, especially widely distributed in the eastern coastal areas. The growth rate of Enteromorpha is fast, and the cells of Enteromorpha contain rich crude fiber protein, which can not only be used in the field of food and feed, but also can be used as high-grade textile raw materials for plants; cells of Enteromorpha also contain a large amount of chitosan, which is beneficial to Gram Yin and Yang bacteria, Escherichia coli, Staphylococcus aureus, Bacillus subtilis and mold all have strong antibacterial properties; Enteromorpha is rich in cellulose, hemicellulose and lignin. The enteromorpha fiber gauze made of the main raw material can maintain the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/15B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01P2004/62C01P2004/64
Inventor 曲丽君田明伟孙亚宁杜敏芝于荣荣赵壬海赵洪涛
Owner QINGDAO UNIV
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