A preparation method of graphite phase carbon nitride nano bouquet with amorphous surface

A technology of graphite phase carbon nitride and amorphous state, which is applied in the direction of chemical instruments and methods, nitrogen compounds, nitrogen and non-metallic compounds, etc., to achieve the effect of simple and effective process, low price, non-toxicity, and large specific surface area

Active Publication Date: 2020-02-18
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is rare to prepare nano bouquets without liquid solvents

Method used

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  • A preparation method of graphite phase carbon nitride nano bouquet with amorphous surface
  • A preparation method of graphite phase carbon nitride nano bouquet with amorphous surface
  • A preparation method of graphite phase carbon nitride nano bouquet with amorphous surface

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Experimental program
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Embodiment 1

[0036] A preparation method of graphite phase carbon nitride nano bouquet with amorphous surface, it comprises the following steps:

[0037](1) Weigh 1.26g melamine and 1.61g ammonium chloride according to the molar ratio of melamine and ammonium chloride 1:3;

[0038] (2) Grind the above-mentioned raw materials that have been weighed, ball mill them, mix them evenly at a high speed, put them into a 30ml reaction kettle, then put the sealed reaction kettle into a well-type crucible furnace, keep it warm at 450°C for 5 hours, Cool to room temperature, open the kettle and take out the crude product;

[0039] (3) Disperse the crude product in 50ml of distilled water, add 40ml of 12mol / L hydrochloric acid and 2ml of 15mol / L nitric acid, heat and stir at 80°C for 12h, then suction filter, wash with ethanol, and finally vacuum dry at 80°C for 24 hours , 1.94 g of black carbon nitride powder can be obtained with a yield of 95.2%.

[0040] attached figure 1 The XRD spectrum of the ...

Embodiment 2

[0046] A preparation method of graphite phase carbon nitride nano bouquet with amorphous surface, it comprises the following steps:

[0047] (1) Take by weighing 1.02g melamine and 1.08g ammonium chloride according to the molar ratio of melamine and ammonium chloride 1:2.5;

[0048] (2) Grind the above-mentioned raw materials that have been weighed, ball mill them, mix them evenly at a high speed, put them into a 30ml reaction kettle, then put the sealed reaction kettle into a well-type crucible furnace, keep it warm at 450°C for 5 hours, Cool to room temperature, open the kettle and take out the crude product;

[0049] (3) Disperse the crude product in 50ml of distilled water, add 40ml of 12mol / L hydrochloric acid and 2ml of 15mol / L nitric acid, heat and stir at 50°C for 12h, then suction filter, wash with ethanol, and finally vacuum dry at 80°C for 24 hours , 1.88 g of black carbon nitride powder can be obtained with a yield of 81.4%.

[0050] The product is analyzed by XR...

Embodiment 3

[0052] A preparation method of graphite phase carbon nitride nano bouquet with amorphous surface, it comprises the following steps:

[0053] (1) Weigh 1.59g melamine and 1.35g ammonium chloride according to the molar ratio of melamine and ammonium chloride 1:2;

[0054] (2) Grind the above-mentioned raw materials that have been weighed, ball mill them, mix them evenly at a high speed, put them into a 30ml reaction kettle, then put the sealed reaction kettle into a well-type crucible furnace, keep it warm at 450°C for 5 hours, Cool to room temperature, open the kettle and take out the crude product;

[0055] (3) Disperse the crude product in 50ml of distilled water, add 40ml of 12mol / L hydrochloric acid and 2ml of 15mol / L nitric acid, heat and stir at 50°C for 12h, then suction filter, wash with ethanol, and finally vacuum dry at 80°C for 24 hours , 2.42 g of black carbon nitride powder can be obtained with a yield of 82.5%.

[0056] The product is analyzed by XRD, FSEM, and ...

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Abstract

The invention relates to a method for preparing graphite-phase carbon nitride nano-bouquets with amorphous surfaces. The method mainly comprises the following steps of utilizing a polymerized carbon source and ammonium chloride (NH4Cl) as raw materials, grinding the weighed raw materials, and putting the ground raw materials into a star-shaped ball mill for mixing 1-3 h, wherein the revolution speed is 50-100 rev / min, the ratio of revolution to self-rotation is 1:2, the liner of a ball mill tank is made of agate, and a grinding ball is made of ZrO2; placing the mixed raw materials in a reaction kettle for sealing, raising the temperature to 350-450 DEG C for a period of time, obtaining crude products, conducting purification on crude products, and obtaining powder of the graphite-phase carbon nitride nano-bouquets with the amorphous surfaces. According to the method for preparing the graphite-phase carbon nitride nano-bouquets with the amorphous surfaces, a simple, easily available and non-toxic polymer is used as the carbon source, a liquid-phase organic reagent is not needed as reaction solvent, and the powder of the graphite-phase carbon nitride nano-bouquets with the amorphous surfaces can be prepared through catalysts at a low temperature; the method for preparing the graphite-phase carbon nitride nano-bouquets with the amorphous surfaces has the advantages of being simple and effective and low in energy consumption, the low-cost and non-toxic raw materials are adopted, and the prepared powder of the carbon nitride nano-bouquets has important application prospects in the fields of photocatalysis and hydrogen storage.

Description

technical field [0001] The invention relates to a preparation method of a graphite-phase carbon nitride nano bouquet with an amorphous surface, which is mainly used in the technical field of nanometer materials, photocatalytic materials and preparation methods thereof. Background technique [0002] In the past ten years, due to the excellent physical and chemical properties and potential application value of nanomaterials, people have done a lot of research on their synthesis and design, among which C 3 N 4 It is a new type of material that does not exist in nature and has certain potential applications in many aspects. Scholars have made further explorations on this. [0003] In the early 1990s, Hemley et al. adopted the conjugate gradient method for C 3 N 4 Calculations were carried out and the results showed that C 3 N 4 May have 5 structures, namely α-C 3 N 4 , β-C 3 N 4 , c-C 3 N 4 , p-C 3 N 4 and graphite phase g-C 3 N 4 Five structures, among which grap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B21/082
CPCC01B21/0605C01P2002/72C01P2004/03C01P2004/04C01P2004/30C01P2004/61
Inventor 王吉林廖和杰龙飞吉钰纯郑国源邹正光
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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