Dry preparation method of transition metal doped carbon fluorescent quantum dot

A carbon fluorescent quantum dot, transition metal technology, applied in chemical instruments and methods, nano-optics, luminescent materials, etc., can solve the problems of fluorescence quenching, rarely used, etc., and achieve enhanced fluorescence intensity, low cost, and simple operation method. Effect
CN108130076AInactive Publication Date: 2018-06-08DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2018-06-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a dry preparation method of transition metal doped carbon fluorescent quantum dots. According to the method, a metal chelator and transition metal salt are subjected to a thermal reaction in the absence of a solvent, and the transition metal doped carbon fluorescent quantum dots are prepared with extraction, centrifugation and dialysis methods after the reaction. The method is convenient to operate, doping of carbon fluorescent quantum dots with metal ions can be realized without harsh reaction conditions or large instruments, and the obtained carbon dots have good water solubility and wider fluorescence emission ranges. The obtained carbon dots have multiple different characteristics according to different types of doping metal ions and different solvents. The prepared carbon dots have great application value in preparation of bio-labeling sensing and medical imaging, photoelectric and light-emitting devices and the like due to these characteristics.
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Description

technical field

[0001] The invention relates to a method for preparing carbon fluorescent quantum dots, in particular to a method for dry-burning carbon fluorescent quantum dots doped with transition metals. Background technique

[0002] As a newly emerging nano-fluorescent material, carbon fluorescent quantum dots have been extensively studied in the past ten years. Compared with the traditional semiconductor metal fluorescent quantum dots, due to the large number of groups generated during the synthesis process, such as carboxyl groups, hydroxyl groups, etc., it has excellent water solubility. In addition, because the main component is a multi-carbon skeleton, its biotoxicity and biocompatibility are greatly improved compared with traditional semiconductor metal fluorescent quantum dots. At the same time, due to the simple and diverse synthesis methods of carbon fluorescent quantum dots, a wide range of raw materials, relatively high fluorescence intensity, and the optica...

Claims

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