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Multilayer egg roll-shaped composite superhard phase C3N4 nanotube and preparation method thereof

A C3N4, nanotube technology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., to achieve the effects of rich surface defect sites, simple and effective process, cheap and non-toxic raw materials

Active Publication Date: 2021-01-05
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the analysis of the literature, it has been reported that the superhard phase C 3 N 4 The morphology of the product mainly includes irregular particles and nanowires, while the multilayer egg roll-like superhard phase C 3 N 4 Not yet reported

Method used

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  • Multilayer egg roll-shaped composite superhard phase C3N4 nanotube and preparation method thereof
  • Multilayer egg roll-shaped composite superhard phase C3N4 nanotube and preparation method thereof
  • Multilayer egg roll-shaped composite superhard phase C3N4 nanotube and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A kind of multi-layer egg roll composite superhard phase C 3 N 4 The preparation method of nanotube, it comprises the following steps:

[0032] (1) Weigh 6.01g of CO(NH 2 ) 2 , 1.60g Fe 2 o 3 and 0.73 gMg;

[0033] (2) First, the weighed Mg, Fe 2 o 3 and CO(NH 2 ) 2 After mixing, put it into a stainless steel ball milling tank, the ball milling medium is iron balls, the ratio of ball to material is 30:1; the ball milling tank is sealed and vacuumized, and then 0.1Mpa NH 3 After 6 hours of ball milling, take out the ball abrasive; then put the ball abrasive into the reaction kettle, seal it and put it into a well-type crucible furnace, keep it warm at 600°C for 6 hours, and open the kettle after cooling with the furnace to obtain the crude product;

[0034] (3) Disperse the crude product in 5M / L hydrochloric acid, heat and stir at 80°C for 12h, then filter with suction, wash with deionized water and ethanol, and dry in vacuum at 60°C for 12h to obtain a multi-l...

Embodiment 2

[0041] A kind of multi-layer egg roll composite superhard phase C 3 N 4 The preparation method of nanotube, it comprises the following steps:

[0042] (1) Weigh 7.21g of CO(NH 2 ) 2 , 1.25g Fe 2 o 3 and 0.59 gMg;

[0043] (2) First, the weighed Mg, Fe 2 o 3 and CO(NH 2 ) 2 After mixing, put it into a stainless steel ball milling tank, the ball milling medium is iron balls, the ball-to-material ratio is 30:1; seal the ball milling tank, vacuumize it, and then pass 0.3Mpa NH 3 After 4 hours of ball milling, take out the ball abrasive. Then put the ball abrasive into the reaction kettle, seal it and put it into the well-type crucible furnace, keep it warm at 550°C for 6 hours, and open the kettle after cooling with the furnace to obtain the crude product;

[0044] (3) Disperse the crude product in 5M / L hydrochloric acid, heat and stir at 80°C for 12h, then filter with suction, wash with deionized water and ethanol, and dry in vacuum at 60°C for 12h to obtain a multi-la...

Embodiment 3

[0047] A kind of multi-layer egg roll composite superhard phase C 3 N 4 The preparation method of nanotube, it comprises the following steps:

[0048] (1) Weigh 5.71g of CO(NH 2 ) 2 , 1.97g Fe 2 o 3 and 0.92 gMg;

[0049] (2) First, the weighed Mg, Fe 2 o 3 and CO(NH 2 ) 2 After mixing, put it into a stainless steel ball milling tank, the ball milling medium is iron balls, the ratio of ball to material is 30:1; seal the ball milling tank, vacuumize it, and then pass 0.5Mpa NH 3 After 8 hours of ball milling, take out the ball abrasive; then put the ball abrasive into the reaction kettle, seal it and put it into the well-type crucible furnace, keep it at 650°C for 6 hours, and open the kettle after cooling with the furnace to obtain the crude product;

[0050] (3) Disperse the crude product in 5M / L hydrochloric acid, heat and stir at 80°C for 12h, then filter with suction, wash with deionized water and ethanol, and dry in vacuum at 60°C for 12h to obtain a multi-layer...

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Abstract

The invention relates to a preparation method of a multilayer egg roll-shaped composite superhard phase C3N4 nanotube. The preparation method comprises the following steps: by using magnesium, ferricoxide and urea as raw materials, carrying out ball milling in an ammonia atmosphere, transferring to a reaction kettle, and keeping the temperature at 550-650 DEG C for 4-8 hours to obtain multilayeregg roll-shaped composite superhard phase C3N4 nanotube powder. According to the invention, the used equipment is simple, the raw materials are low in price and non-toxic, and the prepared multilayeregg-roll-shaped composite superhard phase C3N4 nanotube powder has certain application potential in the fields of material reinforcement and toughening, adsorption catalysis and the like.

Description

technical field [0001] The invention relates to a multilayer egg roll-shaped composite superhard phase C 3 N 4 The nanotube and its preparation method are mainly used in the field of preparation of nanomaterials and composite materials, and are of great significance to the synthesis and application of superhard carbon nitride and its composite materials. Background technique [0002] Carbon Nitride (C 3 N 4 ) contains 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, the first four of which belong to superhard phase materials. Superhard carbon nitride has many excellent properties such as high hardness, low friction coefficient, low density, high temperature resistance and chemical corrosion, and has good application prospects in mechanical materials, photoelectric materials, bioengineering, aerospace and other fields. [0003] High-purity g-C 3 N 4 The material can be prepared relatively easily by low-temperature pyr...

Claims

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Application Information

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IPC IPC(8): C01B21/082B82Y40/00B82Y30/00
CPCC01B21/0605B82Y30/00B82Y40/00C01P2002/72C01P2004/04C01P2004/03C01P2004/62C01P2002/85
Inventor 王吉林马飞文吉钰纯唐锐斌郑国源龙飞周炳
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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