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Co-combustion preparation method of chlorine-doped graphene quantum dots

A technology of graphene quantum dots and chlorine doping, applied in graphene, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of cumbersome batch production steps of graphene quantum dots, not suitable for batch production, etc., and achieve good utilization value , excellent photoelectric performance, the effect of changing structure and performance

Active Publication Date: 2017-12-19
KUNMING INST OF PHYSICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] What the present invention aims to solve is the problem that the batch production steps of existing graphene quantum dots are cumbersome and unsuitable for batch production. It provides a chlorine-doped compound suitable for batch synthesis, using liquid paraffin and chloroform as raw materials, and preparing by co-combustion method. Co-combustion preparation method of heterographene quantum dots

Method used

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  • Co-combustion preparation method of chlorine-doped graphene quantum dots
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  • Co-combustion preparation method of chlorine-doped graphene quantum dots

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Embodiment 1

[0029] Example 1: A co-combustion preparation method of chlorine-doped graphene quantum dots, through the doping of heterogeneous chlorine atoms, to effectively modulate the structure and energy level of graphene quantum dots, thereby modulating the photoelectric properties of graphene quantum dots , the chlorine-doped graphene quantum dots are obtained by co-combustion, ultrasonic and other preparation methods:

[0030] (1) Co-combustion: take 10g of liquid paraffin and 1.6g of chloroform with a straw, mix them evenly, put them into a clean pure white cotton wick bottle and ignite them, and clamp a clean glass slide with tweezers at 25-30cm above the flame , collect the chlorine-doped carbon nanospheres produced in the combustion process, and collect all the chlorine-doped carbon nanospheres on the glass slide after the combustion is extinguished;

[0031] (2) Ultrasonic liquid phase exfoliation: Add a dispersant to the chlorine-doped carbon nanospheres. The dispersant is N-m...

Embodiment 2

[0033] Example 2: A co-combustion preparation method of chlorine-doped graphene quantum dots, through the doping of heterogeneous chlorine atoms, to effectively modulate the structure and energy level of graphene quantum dots, thereby modulating the photoelectric properties of graphene quantum dots , the chlorine-doped graphene quantum dots are obtained by co-combustion, ultrasonic and other preparation methods:

[0034] (1) Co-combustion: Take 5g of liquid paraffin and 0.8g of chloroform with a straw, mix them evenly, put them into a clean pure white cotton wick bottle and ignite them, and clamp a clean glass slide with tweezers at 25-30cm above the flame , collect the chlorine-doped carbon nanospheres produced in the combustion process, and collect all the chlorine-doped carbon nanospheres on the glass slide after the combustion is extinguished;

[0035] (2) Ultrasonic liquid phase exfoliation: Add a dispersant to the chlorine-doped carbon nanospheres. The dispersant is N-me...

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Abstract

The invention relates to a preparation method of graphene quantum dots, in particular to a co-combustion preparation method of chlorine doped graphene quantum dots. The chlorine doped graphene quantum dots are prepared from liquid paraffin and trichloromethane through a co-combustion method. According to the co-combustion preparation method of the chlorine doped graphene quantum dots, the energy level of the graphene quantum dots is effectively adjusted through doping of heterogeneous chlorine atoms, and the photoelectric property of the graphene quantum dots is optimized. The preparation method is characterized in that the chlorine doped graphene quantum dots are obtained in co-combustion, ultrasound and other modes. The co-combustion preparation method of the chlorine doped graphene quantum dots is implemented in co-combustion, ultrasound and centrifugal separation and other modes, the overall technical route is creative, reaction and doping are completed at a time, the doping concentration is adjustable, and the obtained chlorine doped graphene quantum dots have the more excellent photoelectric property and are suitable for batch production.

Description

technical field [0001] The invention relates to a preparation method of graphene quantum dots, in particular to a co-combustion preparation method of chlorine-doped graphene quantum dots prepared by a co-combustion method using liquid paraffin and chloroform as raw materials. Background technique [0002] Graphene quantum dots and doped graphene quantum dots, in addition to inheriting many excellent properties of graphene such as good water solubility, large surface area, high carrier mobility, good mechanical flexibility and stable optical properties, are also It has significant quantum confinement effect and edge effect, and has special optical properties, electronic properties, spin properties, etc., which has attracted widespread attention in recent years. There are various techniques for preparing graphene quantum dots, including nano-etching method, hydrothermal method, electrochemical method, graphene oxide reduction technology, etc. [0003] At present, the reason w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/19C01B32/184
CPCC01B2204/20C01B2204/22C01P2002/01C01P2002/82C01P2002/84
Inventor 唐利斌姬荣斌项金钟胡松文赵俊孔金丞韩福忠
Owner KUNMING INST OF PHYSICS
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