Energy-containing eutectic solvent, application thereof, metal doped carbon quantum dots prepared from energy-containing eutectic solvent, and preparation method of metal doped carbon quantum dots

A technology of deep eutectic solvent and carbon quantum dots, applied in chemical instruments and methods, nano-carbon, nanotechnology, etc., can solve the problems of poor dispersion of quantum dots, low utilization rate of raw materials, weak interaction force, etc., and achieve low cost , high raw material utilization rate, and the effect of improving synthesis yield

Inactive Publication Date: 2019-12-10
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the process of one-pot synthesis of metal-doped carbon quantum dots, there are problems such as low utilization rate of raw materials, waste of raw materials, poor dispersion of quantum dots, and easy pollution to the environment; while the step-by-step method usually prepares metal nanomaterials and Carbon quantum dots, and then the two are compounded for doping, and the carbon quantum dots and metal materials in the prepared metal-doped carbon quantum dots are unevenly distributed, and the interaction force is weak and the chemical stability is poor.

Method used

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  • Energy-containing eutectic solvent, application thereof, metal doped carbon quantum dots prepared from energy-containing eutectic solvent, and preparation method of metal doped carbon quantum dots
  • Energy-containing eutectic solvent, application thereof, metal doped carbon quantum dots prepared from energy-containing eutectic solvent, and preparation method of metal doped carbon quantum dots
  • Energy-containing eutectic solvent, application thereof, metal doped carbon quantum dots prepared from energy-containing eutectic solvent, and preparation method of metal doped carbon quantum dots

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of energy-containing deep eutectic solvent is made by glycerol and 1,4-dinitroimidazole and zinc chloride with a molar ratio of 2:1:0.1, and the specific steps are as follows:

[0032] After mixing 0.2mol (18.418g) of glycerol, 0.1mol (15.807g) of 1,4-dinitroimidazole and 0.01mol (1.363g) of zinc chloride, the temperature was raised to 90°C, and the temperature was reacted for 6 hours to make the system uniform Transparent, and an energetic deep eutectic solvent is obtained.

[0033] The above-mentioned energetic deep eutectic solvent is used to prepare metal-doped carbon quantum dots, and the specific steps are as follows:

[0034] Mix 2g of the above-mentioned energetic deep eutectic solvent with 60ml of deionized water into a 100ml polytetrafluoroethylene reactor, put it into a blast drying oven at 80°C for 10h, and obtain metal-doped carbon quantum dots.

Embodiment 2

[0036] A kind of energy-containing deep eutectic solvent, by molar ratio is 3:2:0.5 ethylene glycol and 5-chloro-1-methyl-4-nitroimidazole, NiCl 2 ·6H 2 O is prepared, and the concrete steps are as follows:

[0037] 0.3mol (18.621g) ethylene glycol, 0.2mol (32.310g) 5-chloro-1-methyl-4-nitroimidazole and 0.05mol (11.885g) NiCl 2 ·6H 2 After O was mixed, the temperature was raised to 100°C, and the reaction was carried out at a constant temperature for 5 hours to make the system uniform and transparent, and an energetic deep eutectic solvent was obtained.

[0038] The above-mentioned energetic deep eutectic solvent is used to prepare metal-doped carbon quantum dots, and the specific steps are as follows:

[0039] Mix 2g of the above-mentioned energetic deep eutectic solvent with 60ml of deionized water into a 100ml polytetrafluoroethylene reactor, put it into a forced air drying oven at 100°C for 4h, and obtain metal-doped carbon quantum dots.

Embodiment 3

[0041] A kind of energetic deep eutectic solvent, by molar ratio is 1:0.6:0.1 glycerol and 2-methyl-4 (5)-nitroimidazole, CoCl 2 ·6H 2 O is prepared, and the concrete steps are as follows:

[0042]0.25mol (23.023g) of glycerol, 0.15mol (19.065g) of 2-methyl-4(5)-nitroimidazole and 0.025mol (5.948g) of CoCl 2 ·6H 2 After O was mixed, the temperature was raised to 110°C, and the reaction was carried out at constant temperature for 1 hour to make the system uniform and transparent, and an energetic deep eutectic solvent was obtained.

[0043] The above-mentioned energetic deep eutectic solvent is used to prepare metal-doped carbon quantum dots, and the specific steps are as follows:

[0044] Mix 2g of the above-mentioned energetic deep eutectic solvent with 40ml of deionized water into a 100ml polytetrafluoroethylene reactor, put it into a blast drying oven at 90°C for 6h, and obtain metal-doped carbon quantum dots.

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Abstract

The invention relates to the technical field of carbon quantum dots, and particularly discloses an energy-containing eutectic solvent, application thereof, metal doped carbon quantum dots prepared from the energy-containing eutectic solvent, and a preparation method of the metal doped carbon quantum dots. The energy-containing eutectic solvent is prepared from an alcohol compound, a nitroimidazoleenergy-containing compound and a transition metal soluble salt. The energy-containing eutectic solvent is used for preparing the metal doped carbon quantum dots. The metal doped carbon quantum dots are good in dispersity, and have good light-induced charge transfer performance, high chemical stability and high light resistance; and the preparation method is simple in process, easy to operate, high in raw material utilization rate, high in energy utilization rate, low in cost, low in toxicity and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of carbon quantum dots, in particular to an energetic deep eutectic solvent, its application, metal-doped carbon quantum dots prepared by the same and a preparation method. Background technique [0002] Carbon quantum dots, as a new nanomaterial emerging in recent years, are a new type of carbon-based zero-dimensional material, which has excellent optical properties, good water solubility, low toxicity, environmental friendliness, biocompatibility and many other advantages, and is widely used In heavy metal recognition, fluorescent probes, protein detection, drug delivery and biological imaging, etc. Metal nanomaterials are widely used as functional nanomaterials due to their high electrical conductivity and good redox activity. Therefore, combining metals with carbon quantum dots by doping can enhance the visible light response ability and electron transmission efficiency of carbon quantum dots, thereby ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/15C09K11/65B82Y40/00
CPCB82Y40/00C09K11/65C01B32/15
Inventor 段二红范培英任红威李美玉俞磊廖中华
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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