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Preparation device and preparation method of carbon quantum dots

A technology of carbon quantum dots and preparation devices, which is applied in the direction of chemical instruments and methods, luminescent materials, etc., can solve the problem of high cost of carbon quantum dots, and achieve the effects of saving time, cost and financial resources, wide application range, and simple devices

Inactive Publication Date: 2019-07-09
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a preparation device and method for carbon quantum dots, which are used to solve the problem of high preparation cost of carbon quantum dots in the prior art

Method used

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  • Preparation device and preparation method of carbon quantum dots
  • Preparation device and preparation method of carbon quantum dots
  • Preparation device and preparation method of carbon quantum dots

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Experimental program
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Embodiment 1

[0043] A preparation device 100 for carbon quantum dots, such as figure 1 As shown, it includes: discharge container 1, absolute ethanol 2, two conductive needles 3, and power supply 4;

[0044] The absolute ethanol is arranged in the discharge vessel;

[0045] The two conductive needles are respectively placed in the absolute ethanol, and one of the conductive needles is connected to the power supply, and the other conductive needle is externally grounded;

[0046] Wherein, when the power supply energizes the conductive needles, plasma is generated between the two conductive needles to break through the absolute ethanol and discharge.

[0047] For example, one end of each conductive needle is in contact with absolute ethanol, the other end of one conductive needle is connected to the high-voltage pole of the high-voltage AC power supply, and the other end of the other conductive needle is grounded. By adjusting the frequency and voltage amplitude of the AC power supply and ...

Embodiment 2

[0065] A carbon quantum dot preparation method 200 based on any preparation device described in Embodiment 1, such as image 3 and Figure 4 shown, including:

[0066] Step 210, constructing any carbon quantum dot preparation device as described in the first embodiment above;

[0067] Step 220, turn on the switch of the power supply, and the power supply energizes the conductive pin connected to it;

[0068] Step 230, adjusting the frequency and amplitude of the power supply, so that plasma is generated between the two conductive needles, the plasma breaks down the absolute ethanol, and the absolute ethanol decomposes to generate hydrogen and carbon quantum dots.

[0069] In this embodiment, from the perspective of green, economical and sustainable development, carbon quantum dots are prepared at the same time as ethanol reforming to produce hydrogen. The device is simple, the equipment requirements are low, and the construction and operation process is simple. Through the ...

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Abstract

The invention relates to a preparation device and a preparation method of carbon quantum dots. The preparation device comprises an electro-discharge container, absolute ethyl alcohol, two conductive needles and a power supply; the absolute ethyl alcohol is arranged in the electro-discharge container; the two conductive needles are arranged in the absolute ethyl alcohol; and one conductive needle is connected with the power supply, and the other conductive needle is externally grounded. When the conductive needle is electrified by the power supply, plasma is generated between the two conductiveneedles so as to break through the absolute ethyl alcohol to discharge electricity. Carbon quantum dots are prepared while hydrogen is produced through ethanol reforming, the device is simple, the equipment requirement is low, no catalyst is needed in the reaction, and the reaction condition is simple. Besides, absolute ethyl alcohol is electrolyzed through the conductive needles, hydrogen and carbon quantum dots are prepared at the same time, the generated carbon quantum dots can play a role in photocatalysis on electrolysis of the absolute ethyl alcohol, the yield of the hydrogen and the carbon quantum dots is increased, positive feedback is formed, dual purposes are achieved, time cost and financial resources are greatly saved, and the utilization rate of ethyl alcohol and energy is increased.

Description

technical field [0001] The invention relates to the technical field of carbon quantum dot preparation, in particular to a preparation device and method for carbon quantum dots. Background technique [0002] Carbon quantum dots are a new type of carbon-based zero-dimensional material. Carbon quantum dots have many advantages such as excellent optical properties, good water solubility, low toxicity, environmental friendliness, wide source of raw materials, low cost, good biocompatibility, stable chemical properties, etc., and are widely used in medical imaging technology, environmental monitoring , chemical analysis, catalyst preparation, energy development and many other fields have good application prospects. Since carbon quantum dots were first discovered, many synthesis methods have been developed, including arc discharge method, laser ablation method, electrochemical synthesis method, chemical oxidation method, combustion method, hydrothermal synthesis method, microwave ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/65
CPCC09K11/65
Inventor 鲜于斌李宜阳
Owner HUAZHONG UNIV OF SCI & TECH
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