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Application of deep eutectic solvent in preparing metal doped carbon quantum dots and preparation method of metal doped carbon quantum dots

A low eutectic solvent, metal doping technology, applied in chemical instruments and methods, nanotechnology for materials and surface science, nanotechnology, etc., can solve the problems of poor dispersion, environmental pollution, low utilization rate of raw materials, etc. To achieve the effect of full contact, good dispersion and high utilization rate of raw materials

Active Publication Date: 2019-05-31
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the problems of low utilization rate of raw materials, environmental pollution and poor dispersibility existing in the preparation process of existing carbon quantum dots, the present invention provides an application of a deep eutectic solvent in the preparation of metal-doped carbon quantum dots and metal-doped carbon quantum dots. point preparation method

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  • Application of deep eutectic solvent in preparing metal doped carbon quantum dots and preparation method of metal doped carbon quantum dots
  • Application of deep eutectic solvent in preparing metal doped carbon quantum dots and preparation method of metal doped carbon quantum dots

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Embodiment 1

[0022] A method for preparing metal-doped carbon quantum dots based on a deep eutectic solvent, wherein the deep eutectic solvent raw material component is composed of choline chloride, glycerol and zinc chloride with a molar ratio of 1.4:3:1, Specifically include the following steps:

[0023] (1) Mix 0.07mol (9.77g) of choline chloride, 0.15mol (13.81g) of glycerol and 0.05mol (6.82g) of zinc chloride, heat up to 100°C, and react at a constant temperature for 10 hours to make the system uniform Transparent to obtain a metal-containing deep eutectic solvent;

[0024] (2) The metal-containing deep eutectic solvent was subjected to sand core suction filtration with filter paper with a pore size of 0.22 μm, and then calcined at 600° C. for 1 h to obtain metal-doped carbon quantum dots.

Embodiment 2

[0026] A method for preparing metal-doped carbon quantum dots based on a deep eutectic solvent, wherein the raw material component of the deep eutectic solvent is composed of acetylcholine chloride, ethylene glycol and zinc chloride in a molar ratio of 1.2:4:1, specifically Include the following steps:

[0027] (1) Mix 0.03mol (5.45g) of choline chloride, 0.1mol (6.21g) of ethylene glycol and 0.025mol (3.41g) of zinc chloride, heat up to 90°C, and react at a constant temperature for 12 hours to make the system uniform Transparent to obtain a metal-containing deep eutectic solvent;

[0028] (2) The metal-containing deep eutectic solvent was subjected to sand core suction filtration with filter paper with a pore size of 0.22 μm, and then calcined at 600° C. for 1 h to obtain metal-doped carbon quantum dots.

Embodiment 3

[0030] A method for preparing metal-doped carbon quantum dots based on a deep eutectic solvent, wherein the deep eutectic solvent raw material component is composed of choline chloride, glycerol and copper chloride with a molar ratio of 1:3:1, Specifically include the following steps:

[0031] (1) Mix 0.01mol (1.40g) choline chloride, 0.03mol (2.76g) glycerol and 0.01mol (1.34g) copper chloride, heat up to 110°C, and react at constant temperature for 5 hours to make the system uniform Transparent to obtain a metal-containing deep eutectic solvent;

[0032] (2) The metal-containing deep eutectic solvent was subjected to sand core suction filtration with filter paper with a pore size of 0.22 μm, and then calcined at 600° C. for 1.5 h to obtain metal-doped carbon quantum dots.

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Abstract

The invention relates to the technical field of carbon quantum dots, and particularly disclosesapplication of a deep eutectic solvent in preparing metal doped carbon quantum dots and a preparation method of the metal doped carbon quantum dots. The deep eutectic solvent is prepared from quaternary ammonium salt, an alcohol compoundand metal halide with a molar ratio of 1 to 2:2 to 5:1 for preparingthe metaldoped carbon quantum dots. The application improves a material utilization rate, improves a quantum dot synthesis yield, optimizes the distribution pattern of metal on the surface of carbonquantum, makes the obtained carbon quantum dots have good dispersibility, and has a good photoinduced charge transfer property, high chemical stability and high lightfastness.

Description

technical field [0001] The invention relates to the technical field of carbon quantum dots, in particular to the application of a deep eutectic solvent in the preparation of metal-doped carbon quantum dots and the preparation method of metal-doped 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, and good biocompatibility. Traditional carbon quantum dots are generally directly added by raw materials. At present, the methods that can be practically applied mainly include: arc discharge method, laser ablation method, electrochemical synthesis method, chemical oxidation method, combustion method, hydrothermal synthesis method, microwave synthesis method, template method Wait. At present, in the preparation process of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/65B82Y20/00B82Y30/00
Inventor 关亚楠张博信任红威段二红王雪韩静
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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