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Rapid preparation method of carbon-doped porous graphitic carbon nitride nano-dispersion system

A technology of porous graphite and phase carbon nitride, which is applied in the field of material science and nanoscience, and can solve problems such as complicated steps and long time

Active Publication Date: 2017-06-30
UNIV OF JINAN
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Problems solved by technology

[0007] The purpose of the present invention is to provide a rapid batch preparation method of carbon-doped porous graphite phase carbon nitride nanomaterials and dispersion systems, and solve the problems of traditional preparation methods such as complex steps and long time

Method used

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Embodiment 1

[0017] Example 1 (1) Mix 10 g of melamine and 2 g of hexamethylenetetramine, dissolve in 100 mL of water, shake for 30 minutes, and freeze-dry;

[0018] (2) Put the mixture prepared in step (1) into a tube furnace, raise the temperature to 140°C at a rate of 3°C / min in a nitrogen atmosphere, and then hold it for 1 hour, then raise the temperature to 550°C and hold it for 4 hours. h, cooled to room temperature;

[0019] (3) Grind the solid obtained in step (2) finely with a mortar, take 1 g and disperse it in 500 mL of water, stir it with a wall breaker with a power of 2000 W and a speed of 20000 rpm for 5 min, and use a centrifuge at 3000 After centrifuging for 10 min, the supernatant was taken to obtain a carbon-doped porous graphite phase carbon nitride nano-dispersion system.

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Abstract

The invention discloses a rapid preparation method of a carbon-doped porous graphitic carbon nitride nano-dispersion system and relates to the fields of nanoscience, material science, photocatalysis and the like. According to the method, high-temperature polymerization of melamine or dicyanodiamine is subjected to in-situ doping and structure control with gas produced through decomposition of hexamethylenetetramine at the high temperature, and a carbon-doped porous graphitic carbon nitride nanomaterial is obtained with a one-step method. Rapid batch preparation of the carbon-doped porous graphitic carbon nitride nano-dispersion system is realized under the high-shearing action, and the rapid preparation method has broad application prospect in the fields of photocatalysis, electrochemical sensing and the like.

Description

technical field [0001] The invention relates to the fields of nanoscience, material science and the like, in particular to a rapid preparation method of a carbon-doped porous graphite phase carbon nitride nano-dispersion system. Background technique [0002] As a non-metallic semiconductor photocatalyst, graphitic carbon nitride is non-toxic, has a band gap of about 2.7 eV, has a certain absorption of visible light, is resistant to acid, alkali, and light corrosion, has good stability, and is easy to control its structure and properties. Good photocatalytic performance has become a research hotspot in the field of photocatalysis. No natural crystals have been found in nature so far. Therefore, the study of graphitic carbon nitride relies on experimental synthesis. Appropriate carbon source and nitrogen source react under certain conditions to obtain graphitic carbon nitride. Commonly used reactants are melamine, cyanuric chloride, cyanamide, dicyandiamide, urea, etc. At ...

Claims

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Application Information

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IPC IPC(8): B01J27/24B01J35/10B01J37/08
CPCB01J27/24B01J37/082B01J35/60
Inventor 诸宗伟邢振远马洪敏刘媛媛赵彦华孙旭李燕魏琴
Owner UNIV OF JINAN
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