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Method for synthesizing nano-diamond through naphthalene nitration product at low temperature and low pressure

A nano-diamond, low-temperature and low-pressure technology, applied in the direction of nanotechnology, nanotechnology, nanotechnology, etc. for materials and surface science, can solve the problems of low reaction temperature and pressure, high risk, etc., and achieve low pollution, simple reaction conditions, The effect of the simple and fast preparation process

Active Publication Date: 2016-08-24
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Technical problem: In order to solve the high-risk problems in the production and preparation of nano-diamond materials, so that nano-diamonds can be produced more safely, quickly, simply, and environmentally friendly, the invention provides a low-temperature and low-pressure naphthalene nitration product powder to nano Diamond Preparation Method
Its reaction temperature and pressure are currently the lowest in the world

Method used

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  • Method for synthesizing nano-diamond through naphthalene nitration product at low temperature and low pressure
  • Method for synthesizing nano-diamond through naphthalene nitration product at low temperature and low pressure

Examples

Experimental program
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Effect test

Embodiment 1

[0017] According to the mass ratio of 1:20, 0.3 g of the nitration product of raw naphthalene was dissolved in 2 mol / L sodium hydroxide solution, and after ultrasonication for 10 minutes, the sealed cover was put into the hydrothermal reaction kettle, and the oven was heated to 200 degrees Celsius, and kept 10 hours;

[0018] After the reaction kettle is cooled, take it out, pour it into a petri dish, seal it and put it in an oven at 50 degrees Celsius to heat for 48 hours;

[0019] Take out the petri dish, collect the dried powder, and use an agate mortar to crush the powder to collect;

[0020] The collected powder is heated to 400 degrees Celsius using a tube furnace and kept for 8 hours, and the collected powder is subjected to the steps of heating evaporation, pickling, neutralization and suction filtration to obtain the reaction product nano-diamond;

[0021] Using a transmission electron microscope to observe the reaction product nanodiamonds, the results are as follow...

Embodiment 2

[0023] Dissolve 0.3 g of the nitrated product of naphthalene as a raw material in 2 mol / L sodium hydroxide solution according to the mass ratio of 1:25, and electromagnetically stir for 10 minutes, then cover with a sealing cover and put it into a hydrothermal reaction kettle, and heat it to 200 degrees Celsius in an oven. keep for 10 hours;

[0024] After the reaction kettle is cooled, take it out, pour it into a petri dish, seal it and put it in an oven at 50 degrees Celsius to heat for 48 hours;

[0025] Take out the petri dish, collect the dried powder, and use an agate mortar to crush the powder to collect;

[0026] The collected powder is heated to 400 degrees Celsius using a tube furnace and kept for 8 hours, and the collected powder is subjected to the steps of heating evaporation, pickling, neutralization and suction filtration to obtain the reaction product nano-diamond;

[0027] The reaction product nano-diamond was observed with a transmission electron microscope,...

Embodiment 3

[0029] Dissolve 0.3 g of the nitrated product of naphthalene as a raw material in 2 mol / L sodium hydroxide solution at a mass ratio of 1:28, and electromagnetically stir for 10 minutes, then cover the lid and put it into a hydrothermal reaction kettle, and heat it to 200 degrees Celsius in an oven. keep for 10 hours;

[0030] After the reaction kettle is cooled, take it out, pour it into a petri dish, seal it and put it in an oven at 70 degrees Celsius to heat for 48 hours;

[0031] Take out the petri dish, collect the dried powder, and use an agate mortar to crush the powder to collect;

[0032] The collected powder is heated to 400 degrees Celsius using a tube furnace and kept for 8 hours, and the collected powder is subjected to the steps of heating evaporation, pickling, neutralization and suction filtration to obtain the reaction product nano-diamond;

[0033] The reaction product nano-diamond was observed with a transmission electron microscope, and the result was simil...

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Abstract

The invention discloses a method for synthesizing a nano-diamond through a naphthalene nitration product at low temperature and low pressure. The method includes the following steps that firstly, 0.3 g of naphthalene nitration product powder is mixed in a 2 mol / L sodium hydroxide solution, and ultrasonic dispersion is conducted to enable the mixture to be uniform; secondly, the mixed liquid is injected into a 50 mL Teflon hydrothermal reaction kettle; thirdly, the Teflon hydrothermal reaction kettle is put in a stainless steel clamp, the stainless steel clamp is put in a high-temperature oven, and heating is conducted for 10 h at the set temperature of 200 DEG C; fourthly, a sample is taken out after being completely cooled, the liquid is poured into a culture dish, the culture dish is put in an oven at the temperature of 60 DEG C, and the liquid is completely evaporated; fifthly, the powder in the culture dish in which the liquid is completely evaporated is collected, and the powder is ground into fine powder in an agate grinding bowl; sixthly, the collected powder is subjected to heating evaporation, acid washing, neutralization and suction filtration separation, and the nano-diamond is obtained. The method can be widely applied to the fields of polishing materials, biological calibration materials and drug release materials.

Description

technical field [0001] In the field of nano-manufacturing and synthesis, the present invention describes a low-temperature and low-pressure synthesis method from naphthalene nitration product powder to nano-diamond. Background technique [0002] Nanodiamond is a nanoscale particle formed by sp3 hybridization of carbon, which is an allotrope with graphite. Nanodiamond materials have broad application prospects in polishing materials, biological calibration, and drug delivery. Nanodiamond has extremely small size (diameter 2-10nm), stable chemical characteristics, high-strength physical characteristics, extremely high specific surface area and excellent biocompatibility. Nanodiamond is considered to be an extremely important new material in the 21st century. [0003] At present, the preparation method of nano-diamond still uses the sealed detonation method of TNT (trinitrotoluene) and EDX (RDX), which is extremely dangerous and violent. Therefore, the application of nano-di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/06B82Y30/00
CPCC01P2004/04C01P2004/64
Inventor 孙立涛苏适马青沈昱婷
Owner SOUTHEAST UNIV