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A method for synthesizing nano-diamonds from phenanthrene nitration product powder at low temperature and low pressure

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

Active Publication Date: 2018-02-02
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 phenanthrene 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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  • A method for synthesizing nano-diamonds from phenanthrene nitration product powder at low temperature and low pressure
  • A method for synthesizing nano-diamonds from phenanthrene nitration product powder at low temperature and low pressure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Dissolve 0.3 g of the nitration product of the raw material phenanthrene into 2 mol / L sodium hydroxide solution according to the mass ratio of 1:20, put the sealing cap on after ultrasonication for 10 minutes, put it into a hydrothermal reaction kettle, heat it to 200 degrees Celsius in an oven, and keep 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 fo...

Embodiment 2

[0023] Dissolve 0.3 g of the nitration product of the raw material phenanthrene into 2 mol / L sodium hydroxide solution according to the mass ratio of 1:25, and after electromagnetic stirring for 10 minutes, cover the 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 nitration product of the raw material phenanthrene into 2 mol / L sodium hydroxide solution according to the mass ratio of 1:28, and then electromagnetically stir for 10 minutes, 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;

[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 microsco...

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Abstract

The invention discloses a method for low-temperature low-pressure synthesis of nano diamond by using phenanthrene nitrification product powder. The method comprises the following steps that step one, 0.3 g of the phenanthrene nitrification product powder is mixed in 2 mol / L of sodium hydroxide solution, ultrasonic dispersion is performed to achieve uniform dispersion; step two, the mixed liquid is injected into a 50 mL teflon thermal water kettle; step three, the teflon reaction kettle is put in a stainless steel clamp and then is put in a high-temperature oven, 200 degrees Celsius is set, and heating is performed for 10 hours; step four, the sample is taken out after being cooled completely, the liquid is poured into a culture dish, the culture dish is put in an oven of 60 degrees Celsius for evaporation; step five, powder in the culture dish after evaporation is collected and is ground into powder in an agate grinding bowl; step six, the collected powder is subjected to heating evaporation, pickling, neutralizing, suction filtration and separation to obtain the nano diamond. The method can be widely applied in the fields of polishing materials, biological labeling 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 phenanthrene 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-d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/26B82Y30/00
CPCB82Y30/00C01P2004/04C01P2004/32C01P2004/64
Inventor 孙立涛苏适马青沈昱婷
Owner SOUTHEAST UNIV